mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
d8e9af8af8
Database abstraction broken up into controller, connector, query builder, and schema manager, each independently configurable via YAML / Injector Creation of new DBQueryGenerator for database specific generation of SQL Support for parameterised queries, move of code base to use these over escaped conditions Refactor of SQLQuery into separate query classes for each of INSERT UPDATE DELETE and SELECT Support for PDO Installation process upgraded to use new ORM SS_DatabaseException created to handle database errors, maintaining details of raw sql and parameter details for user code designed interested in that data. Renamed DB static methods to conform correctly to naming conventions (e.g. DB::getConn -> DB::get_conn) 3.2 upgrade docs Performance Optimisation and simplification of code to use more concise API API Ability for database adapters to register extensions to ConfigureFromEnv.php
3837 lines
124 KiB
PHP
3837 lines
124 KiB
PHP
<?php
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/**
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* A single database record & abstract class for the data-access-model.
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*
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* <h2>Extensions</h2>
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*
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* See {@link Extension} and {@link DataExtension}.
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*
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* <h2>Permission Control</h2>
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*
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* Object-level access control by {@link Permission}. Permission codes are arbitrary
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* strings which can be selected on a group-by-group basis.
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*
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* <code>
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* class Article extends DataObject implements PermissionProvider {
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* static $api_access = true;
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*
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* function canView($member = false) {
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* return Permission::check('ARTICLE_VIEW');
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* }
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* function canEdit($member = false) {
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* return Permission::check('ARTICLE_EDIT');
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* }
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* function canDelete() {
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* return Permission::check('ARTICLE_DELETE');
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* }
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* function canCreate() {
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* return Permission::check('ARTICLE_CREATE');
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* }
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* function providePermissions() {
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* return array(
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* 'ARTICLE_VIEW' => 'Read an article object',
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* 'ARTICLE_EDIT' => 'Edit an article object',
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* 'ARTICLE_DELETE' => 'Delete an article object',
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* 'ARTICLE_CREATE' => 'Create an article object',
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* );
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* }
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* }
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* </code>
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*
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* Object-level access control by {@link Group} membership:
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* <code>
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* class Article extends DataObject {
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* static $api_access = true;
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*
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* function canView($member = false) {
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* if(!$member) $member = Member::currentUser();
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* return $member->inGroup('Subscribers');
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* }
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* function canEdit($member = false) {
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* if(!$member) $member = Member::currentUser();
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* return $member->inGroup('Editors');
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* }
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*
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* // ...
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* }
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* </code>
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*
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* If any public method on this class is prefixed with an underscore,
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* the results are cached in memory through {@link cachedCall()}.
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*
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*
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* @todo Add instance specific removeExtension() which undos loadExtraStatics()
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* and defineMethods()
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*
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* @package framework
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* @subpackage model
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*
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* @property integer ID ID of the DataObject, 0 if the DataObject doesn't exist in database.
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* @property string ClassName Class name of the DataObject
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* @property string LastEdited Date and time of DataObject's last modification.
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* @property string Created Date and time of DataObject creation.
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*/
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class DataObject extends ViewableData implements DataObjectInterface, i18nEntityProvider {
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/**
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* Human-readable singular name.
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* @var string
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* @config
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*/
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private static $singular_name = null;
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/**
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* Human-readable pluaral name
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* @var string
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* @config
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*/
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private static $plural_name = null;
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/**
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* Allow API access to this object?
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* @todo Define the options that can be set here
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* @config
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*/
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private static $api_access = false;
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/**
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* True if this DataObject has been destroyed.
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* @var boolean
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*/
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public $destroyed = false;
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/**
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* The DataModel from this this object comes
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*/
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protected $model;
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/**
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* Data stored in this objects database record. An array indexed by fieldname.
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*
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* Use {@link toMap()} if you want an array representation
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* of this object, as the $record array might contain lazy loaded field aliases.
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*
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* @var array
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*/
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protected $record;
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/**
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* Represents a field that hasn't changed (before === after, thus before == after)
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*/
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const CHANGE_NONE = 0;
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/**
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* Represents a field that has changed type, although not the loosely defined value.
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* (before !== after && before == after)
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* E.g. change 1 to true or "true" to true, but not true to 0.
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* Value changes are by nature also considered strict changes.
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*/
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const CHANGE_STRICT = 1;
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/**
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* Represents a field that has changed the loosely defined value
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* (before != after, thus, before !== after))
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* E.g. change false to true, but not false to 0
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*/
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const CHANGE_VALUE = 2;
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/**
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* An array indexed by fieldname, true if the field has been changed.
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* Use {@link getChangedFields()} and {@link isChanged()} to inspect
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* the changed state.
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*
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* @var array
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*/
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private $changed;
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/**
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* The database record (in the same format as $record), before
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* any changes.
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* @var array
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*/
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protected $original;
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/**
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* Used by onBeforeDelete() to ensure child classes call parent::onBeforeDelete()
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* @var boolean
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*/
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protected $brokenOnDelete = false;
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/**
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* Used by onBeforeWrite() to ensure child classes call parent::onBeforeWrite()
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* @var boolean
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*/
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protected $brokenOnWrite = false;
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/**
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* @config
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* @var boolean Should dataobjects be validated before they are written?
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* Caution: Validation can contain safeguards against invalid/malicious data,
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* and check permission levels (e.g. on {@link Group}). Therefore it is recommended
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* to only disable validation for very specific use cases.
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*/
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private static $validation_enabled = true;
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/**
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* Static caches used by relevant functions.
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*/
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public static $cache_has_own_table = array();
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protected static $_cache_db = array();
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protected static $_cache_get_one;
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protected static $_cache_get_class_ancestry;
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protected static $_cache_composite_fields = array();
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protected static $_cache_custom_database_fields = array();
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protected static $_cache_field_labels = array();
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// base fields which are not defined in static $db
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private static $fixed_fields = array(
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'ID' => 'Int',
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'ClassName' => 'Enum',
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'LastEdited' => 'SS_Datetime',
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'Created' => 'SS_Datetime',
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);
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/**
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* Non-static relationship cache, indexed by component name.
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*/
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protected $components;
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/**
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* Non-static cache of has_many and many_many relations that can't be written until this object is saved.
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*/
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protected $unsavedRelations;
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/**
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* Returns when validation on DataObjects is enabled.
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*
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* @deprecated 3.2 Use the "DataObject.validation_enabled" config setting instead
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* @return bool
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*/
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public static function get_validation_enabled() {
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Deprecation::notice('3.2', 'Use the "DataObject.validation_enabled" config setting instead');
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return Config::inst()->get('DataObject', 'validation_enabled');
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}
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/**
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* Set whether DataObjects should be validated before they are written.
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*
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* Caution: Validation can contain safeguards against invalid/malicious data,
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* and check permission levels (e.g. on {@link Group}). Therefore it is recommended
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* to only disable validation for very specific use cases.
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*
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* @param $enable bool
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* @see DataObject::validate()
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* @deprecated 3.2 Use the "DataObject.validation_enabled" config setting instead
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*/
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public static function set_validation_enabled($enable) {
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Deprecation::notice('3.2', 'Use the "DataObject.validation_enabled" config setting instead');
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Config::inst()->update('DataObject', 'validation_enabled', (bool)$enable);
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}
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/**
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* @var [string] - class => ClassName field definition cache for self::database_fields
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*/
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private static $classname_spec_cache = array();
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/**
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* Clear all cached classname specs. It's necessary to clear all cached subclassed names
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* for any classes if a new class manifest is generated.
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*/
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public static function clear_classname_spec_cache() {
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self::$classname_spec_cache = array();
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PolymorphicForeignKey::clear_classname_spec_cache();
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}
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/**
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* Determines the specification for the ClassName field for the given class
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*
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* @param string $class
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* @param boolean $queryDB Determine if the DB may be queried for additional information
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* @return string Resulting ClassName spec. If $queryDB is true this will include all
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* legacy types that no longer have concrete classes in PHP
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*/
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public static function get_classname_spec($class, $queryDB = true) {
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// Check cache
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if(!empty(self::$classname_spec_cache[$class])) return self::$classname_spec_cache[$class];
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// Build known class names
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$classNames = ClassInfo::subclassesFor($class);
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// Enhance with existing classes in order to prevent legacy details being lost
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if($queryDB && DB::get_schema()->hasField($class, 'ClassName')) {
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$existing = DB::query("SELECT DISTINCT \"ClassName\" FROM \"{$class}\"")->column();
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$classNames = array_unique(array_merge($classNames, $existing));
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}
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$spec = "Enum('" . implode(', ', $classNames) . "')";
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// Only cache full information if queried
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if($queryDB) self::$classname_spec_cache[$class] = $spec;
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return $spec;
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}
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/**
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* Return the complete map of fields on this object, including "Created", "LastEdited" and "ClassName".
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* See {@link custom_database_fields()} for a getter that excludes these "base fields".
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*
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* @param string $class
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* @param boolean $queryDB Determine if the DB may be queried for additional information
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* @return array
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*/
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public static function database_fields($class, $queryDB = true) {
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if(get_parent_class($class) == 'DataObject') {
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// Merge fixed with ClassName spec and custom db fields
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$fixed = self::$fixed_fields;
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unset($fixed['ID']);
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return array_merge(
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$fixed,
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array('ClassName' => self::get_classname_spec($class, $queryDB)),
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self::custom_database_fields($class)
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);
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}
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return self::custom_database_fields($class);
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}
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/**
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* Get all database columns explicitly defined on a class in {@link DataObject::$db}
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* and {@link DataObject::$has_one}. Resolves instances of {@link CompositeDBField}
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* into the actual database fields, rather than the name of the field which
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* might not equate a database column.
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*
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* Does not include "base fields" like "ID", "ClassName", "Created", "LastEdited",
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* see {@link database_fields()}.
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*
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* @uses CompositeDBField->compositeDatabaseFields()
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*
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* @param string $class
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* @return array Map of fieldname to specification, similiar to {@link DataObject::$db}.
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*/
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public static function custom_database_fields($class) {
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if(isset(self::$_cache_custom_database_fields[$class])) {
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return self::$_cache_custom_database_fields[$class];
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}
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$fields = Config::inst()->get($class, 'db', Config::UNINHERITED);
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foreach(self::composite_fields($class, false) as $fieldName => $fieldClass) {
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// Remove the original fieldname, it's not an actual database column
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unset($fields[$fieldName]);
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// Add all composite columns
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$compositeFields = singleton($fieldClass)->compositeDatabaseFields();
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if($compositeFields) foreach($compositeFields as $compositeName => $spec) {
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$fields["{$fieldName}{$compositeName}"] = $spec;
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}
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}
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// Add has_one relationships
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$hasOne = Config::inst()->get($class, 'has_one', Config::UNINHERITED);
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if($hasOne) foreach(array_keys($hasOne) as $field) {
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// Check if this is a polymorphic relation, in which case the relation
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// is a composite field
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if($hasOne[$field] === 'DataObject') {
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$relationField = DBField::create_field('PolymorphicForeignKey', null, $field);
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$relationField->setTable($class);
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if($compositeFields = $relationField->compositeDatabaseFields()) {
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foreach($compositeFields as $compositeName => $spec) {
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$fields["{$field}{$compositeName}"] = $spec;
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}
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}
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} else {
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$fields[$field . 'ID'] = 'ForeignKey';
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}
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}
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$output = (array) $fields;
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self::$_cache_custom_database_fields[$class] = $output;
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return $output;
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}
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/**
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* Returns the field class if the given db field on the class is a composite field.
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* Will check all applicable ancestor classes and aggregate results.
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*
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* @param string $class Class to check
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* @param string $name Field to check
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* @param boolean $aggregated True if parent classes should be checked, or false to limit to this class
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* @return string Class name of composite field if it exists
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*/
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public static function is_composite_field($class, $name, $aggregated = true) {
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if(!isset(DataObject::$_cache_composite_fields[$class])) self::cache_composite_fields($class);
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if(isset(DataObject::$_cache_composite_fields[$class][$name])) {
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return DataObject::$_cache_composite_fields[$class][$name];
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} else if($aggregated && $class != 'DataObject' && ($parentClass=get_parent_class($class)) != 'DataObject') {
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return self::is_composite_field($parentClass, $name);
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}
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}
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/**
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* Returns a list of all the composite if the given db field on the class is a composite field.
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* Will check all applicable ancestor classes and aggregate results.
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*/
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public static function composite_fields($class, $aggregated = true) {
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if(!isset(DataObject::$_cache_composite_fields[$class])) self::cache_composite_fields($class);
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$compositeFields = DataObject::$_cache_composite_fields[$class];
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if($aggregated && $class != 'DataObject' && ($parentClass=get_parent_class($class)) != 'DataObject') {
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$compositeFields = array_merge($compositeFields,
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self::composite_fields($parentClass));
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}
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return $compositeFields;
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}
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/**
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* Internal cacher for the composite field information
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*/
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private static function cache_composite_fields($class) {
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$compositeFields = array();
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$fields = Config::inst()->get($class, 'db', Config::UNINHERITED);
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if($fields) foreach($fields as $fieldName => $fieldClass) {
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if(!is_string($fieldClass)) continue;
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// Strip off any parameters
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$bPos = strpos('(', $fieldClass);
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if($bPos !== FALSE) $fieldClass = substr(0,$bPos, $fieldClass);
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// Test to see if it implements CompositeDBField
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if(ClassInfo::classImplements($fieldClass, 'CompositeDBField')) {
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$compositeFields[$fieldName] = $fieldClass;
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}
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}
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DataObject::$_cache_composite_fields[$class] = $compositeFields;
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}
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/**
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* Construct a new DataObject.
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*
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* @param array|null $record This will be null for a new database record. Alternatively, you can pass an array of
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* field values. Normally this contructor is only used by the internal systems that get objects from the database.
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* @param boolean $isSingleton This this to true if this is a singleton() object, a stub for calling methods.
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* Singletons don't have their defaults set.
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*/
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public function __construct($record = null, $isSingleton = false, $model = null) {
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parent::__construct();
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// Set the fields data.
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if(!$record) {
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$record = array(
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'ID' => 0,
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'ClassName' => get_class($this),
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'RecordClassName' => get_class($this)
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);
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}
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if(!is_array($record) && !is_a($record, "stdClass")) {
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if(is_object($record)) $passed = "an object of type '$record->class'";
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else $passed = "The value '$record'";
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user_error("DataObject::__construct passed $passed. It's supposed to be passed an array,"
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. " taken straight from the database. Perhaps you should use DataList::create()->First(); instead?",
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E_USER_WARNING);
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$record = null;
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}
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// Set $this->record to $record, but ignore NULLs
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$this->record = array();
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foreach($record as $k => $v) {
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// Ensure that ID is stored as a number and not a string
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// To do: this kind of clean-up should be done on all numeric fields, in some relatively
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// performant manner
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if($v !== null) {
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if($k == 'ID' && is_numeric($v)) $this->record[$k] = (int)$v;
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else $this->record[$k] = $v;
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}
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}
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// Identify fields that should be lazy loaded, but only on existing records
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if(!empty($record['ID'])) {
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$currentObj = get_class($this);
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while($currentObj != 'DataObject') {
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$fields = self::custom_database_fields($currentObj);
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foreach($fields as $field => $type) {
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if(!array_key_exists($field, $record)) $this->record[$field.'_Lazy'] = $currentObj;
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}
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$currentObj = get_parent_class($currentObj);
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}
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}
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$this->original = $this->record;
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// Keep track of the modification date of all the data sourced to make this page
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// From this we create a Last-Modified HTTP header
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if(isset($record['LastEdited'])) {
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HTTP::register_modification_date($record['LastEdited']);
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}
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// this must be called before populateDefaults(), as field getters on a DataObject
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// may call getComponent() and others, which rely on $this->model being set.
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$this->model = $model ? $model : DataModel::inst();
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// Must be called after parent constructor
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if(!$isSingleton && (!isset($this->record['ID']) || !$this->record['ID'])) {
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$this->populateDefaults();
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}
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// prevent populateDefaults() and setField() from marking overwritten defaults as changed
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$this->changed = array();
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}
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/**
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* Set the DataModel
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* @param DataModel $model
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* @return DataObject $this
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*/
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public function setDataModel(DataModel $model) {
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$this->model = $model;
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return $this;
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}
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/**
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* Destroy all of this objects dependant objects and local caches.
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* You'll need to call this to get the memory of an object that has components or extensions freed.
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*/
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public function destroy() {
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//$this->destroyed = true;
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gc_collect_cycles();
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$this->flushCache(false);
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}
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|
|
/**
|
|
* Create a duplicate of this node.
|
|
* Note: now also duplicates relations.
|
|
*
|
|
* @param $doWrite Perform a write() operation before returning the object. If this is true, it will create the
|
|
* duplicate in the database.
|
|
* @return DataObject A duplicate of this node. The exact type will be the type of this node.
|
|
*/
|
|
public function duplicate($doWrite = true) {
|
|
$className = $this->class;
|
|
$clone = new $className( $this->toMap(), false, $this->model );
|
|
$clone->ID = 0;
|
|
|
|
$clone->invokeWithExtensions('onBeforeDuplicate', $this, $doWrite);
|
|
if($doWrite) {
|
|
$clone->write();
|
|
$this->duplicateManyManyRelations($this, $clone);
|
|
}
|
|
$clone->invokeWithExtensions('onAfterDuplicate', $this, $doWrite);
|
|
|
|
return $clone;
|
|
}
|
|
|
|
/**
|
|
* Copies the many_many and belongs_many_many relations from one object to another instance of the name of object
|
|
* The destinationObject must be written to the database already and have an ID. Writing is performed
|
|
* automatically when adding the new relations.
|
|
*
|
|
* @param $sourceObject the source object to duplicate from
|
|
* @param $destinationObject the destination object to populate with the duplicated relations
|
|
* @return DataObject with the new many_many relations copied in
|
|
*/
|
|
protected function duplicateManyManyRelations($sourceObject, $destinationObject) {
|
|
if (!$destinationObject || $destinationObject->ID < 1) {
|
|
user_error("Can't duplicate relations for an object that has not been written to the database",
|
|
E_USER_ERROR);
|
|
}
|
|
|
|
//duplicate complex relations
|
|
// DO NOT copy has_many relations, because copying the relation would result in us changing the has_one
|
|
// relation on the other side of this relation to point at the copy and no longer the original (being a
|
|
// has_one, it can only point at one thing at a time). So, all relations except has_many can and are copied
|
|
if ($sourceObject->has_one()) foreach($sourceObject->has_one() as $name => $type) {
|
|
$this->duplicateRelations($sourceObject, $destinationObject, $name);
|
|
}
|
|
if ($sourceObject->many_many()) foreach($sourceObject->many_many() as $name => $type) {
|
|
//many_many include belongs_many_many
|
|
$this->duplicateRelations($sourceObject, $destinationObject, $name);
|
|
}
|
|
|
|
return $destinationObject;
|
|
}
|
|
|
|
/**
|
|
* Helper function to duplicate relations from one object to another
|
|
* @param $sourceObject the source object to duplicate from
|
|
* @param $destinationObject the destination object to populate with the duplicated relations
|
|
* @param $name the name of the relation to duplicate (e.g. members)
|
|
*/
|
|
private function duplicateRelations($sourceObject, $destinationObject, $name) {
|
|
$relations = $sourceObject->$name();
|
|
if ($relations) {
|
|
if ($relations instanceOf RelationList) { //many-to-something relation
|
|
if ($relations->Count() > 0) { //with more than one thing it is related to
|
|
foreach($relations as $relation) {
|
|
$destinationObject->$name()->add($relation);
|
|
}
|
|
}
|
|
} else { //one-to-one relation
|
|
$destinationObject->{"{$name}ID"} = $relations->ID;
|
|
}
|
|
}
|
|
}
|
|
|
|
public function getObsoleteClassName() {
|
|
$className = $this->getField("ClassName");
|
|
if (!ClassInfo::exists($className)) return $className;
|
|
}
|
|
|
|
public function getClassName() {
|
|
$className = $this->getField("ClassName");
|
|
if (!ClassInfo::exists($className)) return get_class($this);
|
|
return $className;
|
|
}
|
|
|
|
/**
|
|
* Set the ClassName attribute. {@link $class} is also updated.
|
|
* Warning: This will produce an inconsistent record, as the object
|
|
* instance will not automatically switch to the new subclass.
|
|
* Please use {@link newClassInstance()} for this purpose,
|
|
* or destroy and reinstanciate the record.
|
|
*
|
|
* @param string $className The new ClassName attribute (a subclass of {@link DataObject})
|
|
* @return DataObject $this
|
|
*/
|
|
public function setClassName($className) {
|
|
$className = trim($className);
|
|
if(!$className || !is_subclass_of($className, 'DataObject')) return;
|
|
|
|
$this->class = $className;
|
|
$this->setField("ClassName", $className);
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Create a new instance of a different class from this object's record.
|
|
* This is useful when dynamically changing the type of an instance. Specifically,
|
|
* it ensures that the instance of the class is a match for the className of the
|
|
* record. Don't set the {@link DataObject->class} or {@link DataObject->ClassName}
|
|
* property manually before calling this method, as it will confuse change detection.
|
|
*
|
|
* If the new class is different to the original class, defaults are populated again
|
|
* because this will only occur automatically on instantiation of a DataObject if
|
|
* there is no record, or the record has no ID. In this case, we do have an ID but
|
|
* we still need to repopulate the defaults.
|
|
*
|
|
* @param string $newClassName The name of the new class
|
|
*
|
|
* @return DataObject The new instance of the new class, The exact type will be of the class name provided.
|
|
*/
|
|
public function newClassInstance($newClassName) {
|
|
$originalClass = $this->ClassName;
|
|
$newInstance = new $newClassName(array_merge(
|
|
$this->record,
|
|
array(
|
|
'ClassName' => $originalClass,
|
|
'RecordClassName' => $originalClass,
|
|
)
|
|
), false, $this->model);
|
|
|
|
if($newClassName != $originalClass) {
|
|
$newInstance->setClassName($newClassName);
|
|
$newInstance->populateDefaults();
|
|
$newInstance->forceChange();
|
|
}
|
|
|
|
return $newInstance;
|
|
}
|
|
|
|
/**
|
|
* Adds methods from the extensions.
|
|
* Called by Object::__construct() once per class.
|
|
*/
|
|
public function defineMethods() {
|
|
parent::defineMethods();
|
|
|
|
// Define the extra db fields - this is only necessary for extensions added in the
|
|
// class definition. Object::add_extension() will call this at definition time for
|
|
// those objects, which is a better mechanism. Perhaps extensions defined inside the
|
|
// class def can somehow be applied at definiton time also?
|
|
if($this->extension_instances) foreach($this->extension_instances as $i => $instance) {
|
|
if(!$instance->class) {
|
|
$class = get_class($instance);
|
|
user_error("DataObject::defineMethods(): Please ensure {$class}::__construct() calls"
|
|
. " parent::__construct()", E_USER_ERROR);
|
|
}
|
|
}
|
|
|
|
if($this->class == 'DataObject') return;
|
|
|
|
// Set up accessors for joined items
|
|
if($manyMany = $this->many_many()) {
|
|
foreach($manyMany as $relationship => $class) {
|
|
$this->addWrapperMethod($relationship, 'getManyManyComponents');
|
|
}
|
|
}
|
|
if($hasMany = $this->has_many()) {
|
|
|
|
foreach($hasMany as $relationship => $class) {
|
|
$this->addWrapperMethod($relationship, 'getComponents');
|
|
}
|
|
|
|
}
|
|
if($hasOne = $this->has_one()) {
|
|
foreach($hasOne as $relationship => $class) {
|
|
$this->addWrapperMethod($relationship, 'getComponent');
|
|
}
|
|
}
|
|
if($belongsTo = $this->belongs_to()) foreach(array_keys($belongsTo) as $relationship) {
|
|
$this->addWrapperMethod($relationship, 'getComponent');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if this object "exists", i.e., has a sensible value.
|
|
* The default behaviour for a DataObject is to return true if
|
|
* the object exists in the database, you can override this in subclasses.
|
|
*
|
|
* @return boolean true if this object exists
|
|
*/
|
|
public function exists() {
|
|
return (isset($this->record['ID']) && $this->record['ID'] > 0);
|
|
}
|
|
|
|
/**
|
|
* Returns TRUE if all values (other than "ID") are
|
|
* considered empty (by weak boolean comparison).
|
|
* Only checks for fields listed in {@link custom_database_fields()}
|
|
*
|
|
* @todo Use DBField->hasValue()
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function isEmpty(){
|
|
$isEmpty = true;
|
|
$customFields = self::custom_database_fields(get_class($this));
|
|
if($map = $this->toMap()){
|
|
foreach($map as $k=>$v){
|
|
// only look at custom fields
|
|
if(!array_key_exists($k, $customFields)) continue;
|
|
|
|
$dbObj = ($v instanceof DBField) ? $v : $this->dbObject($k);
|
|
$isEmpty = ($isEmpty && !$dbObj->exists());
|
|
}
|
|
}
|
|
return $isEmpty;
|
|
}
|
|
|
|
/**
|
|
* Get the user friendly singular name of this DataObject.
|
|
* If the name is not defined (by redefining $singular_name in the subclass),
|
|
* this returns the class name.
|
|
*
|
|
* @return string User friendly singular name of this DataObject
|
|
*/
|
|
public function singular_name() {
|
|
if(!$name = $this->stat('singular_name')) {
|
|
$name = ucwords(trim(strtolower(preg_replace('/_?([A-Z])/', ' $1', $this->class))));
|
|
}
|
|
|
|
return $name;
|
|
}
|
|
|
|
/**
|
|
* Get the translated user friendly singular name of this DataObject
|
|
* same as singular_name() but runs it through the translating function
|
|
*
|
|
* Translating string is in the form:
|
|
* $this->class.SINGULARNAME
|
|
* Example:
|
|
* Page.SINGULARNAME
|
|
*
|
|
* @return string User friendly translated singular name of this DataObject
|
|
*/
|
|
public function i18n_singular_name() {
|
|
return _t($this->class.'.SINGULARNAME', $this->singular_name());
|
|
}
|
|
|
|
/**
|
|
* Get the user friendly plural name of this DataObject
|
|
* If the name is not defined (by renaming $plural_name in the subclass),
|
|
* this returns a pluralised version of the class name.
|
|
*
|
|
* @return string User friendly plural name of this DataObject
|
|
*/
|
|
public function plural_name() {
|
|
if($name = $this->stat('plural_name')) {
|
|
return $name;
|
|
} else {
|
|
$name = $this->singular_name();
|
|
if(substr($name,-1) == 'e') $name = substr($name,0,-1);
|
|
else if(substr($name,-1) == 'y') $name = substr($name,0,-1) . 'ie';
|
|
|
|
return ucfirst($name . 's');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the translated user friendly plural name of this DataObject
|
|
* Same as plural_name but runs it through the translation function
|
|
* Translation string is in the form:
|
|
* $this->class.PLURALNAME
|
|
* Example:
|
|
* Page.PLURALNAME
|
|
*
|
|
* @return string User friendly translated plural name of this DataObject
|
|
*/
|
|
public function i18n_plural_name()
|
|
{
|
|
$name = $this->plural_name();
|
|
return _t($this->class.'.PLURALNAME', $name);
|
|
}
|
|
|
|
/**
|
|
* Standard implementation of a title/label for a specific
|
|
* record. Tries to find properties 'Title' or 'Name',
|
|
* and falls back to the 'ID'. Useful to provide
|
|
* user-friendly identification of a record, e.g. in errormessages
|
|
* or UI-selections.
|
|
*
|
|
* Overload this method to have a more specialized implementation,
|
|
* e.g. for an Address record this could be:
|
|
* <code>
|
|
* function getTitle() {
|
|
* return "{$this->StreetNumber} {$this->StreetName} {$this->City}";
|
|
* }
|
|
* </code>
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getTitle() {
|
|
if($this->hasDatabaseField('Title')) return $this->getField('Title');
|
|
if($this->hasDatabaseField('Name')) return $this->getField('Name');
|
|
|
|
return "#{$this->ID}";
|
|
}
|
|
|
|
/**
|
|
* Returns the associated database record - in this case, the object itself.
|
|
* This is included so that you can call $dataOrController->data() and get a DataObject all the time.
|
|
*
|
|
* @return DataObject Associated database record
|
|
*/
|
|
public function data() {
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Convert this object to a map.
|
|
*
|
|
* @return array The data as a map.
|
|
*/
|
|
public function toMap() {
|
|
$this->loadLazyFields();
|
|
return $this->record;
|
|
}
|
|
|
|
/**
|
|
* Return all currently fetched database fields.
|
|
*
|
|
* This function is similar to toMap() but doesn't trigger the lazy-loading of all unfetched fields.
|
|
* Obviously, this makes it a lot faster.
|
|
*
|
|
* @return array The data as a map.
|
|
*/
|
|
public function getQueriedDatabaseFields() {
|
|
return $this->record;
|
|
}
|
|
|
|
/**
|
|
* Update a number of fields on this object, given a map of the desired changes.
|
|
*
|
|
* The field names can be simple names, or you can use a dot syntax to access $has_one relations.
|
|
* For example, array("Author.FirstName" => "Jim") will set $this->Author()->FirstName to "Jim".
|
|
*
|
|
* update() doesn't write the main object, but if you use the dot syntax, it will write()
|
|
* the related objects that it alters.
|
|
*
|
|
* @param array $data A map of field name to data values to update.
|
|
* @return DataObject $this
|
|
*/
|
|
public function update($data) {
|
|
foreach($data as $k => $v) {
|
|
// Implement dot syntax for updates
|
|
if(strpos($k,'.') !== false) {
|
|
$relations = explode('.', $k);
|
|
$fieldName = array_pop($relations);
|
|
$relObj = $this;
|
|
foreach($relations as $i=>$relation) {
|
|
// no support for has_many or many_many relationships,
|
|
// as the updater wouldn't know which object to write to (or create)
|
|
if($relObj->$relation() instanceof DataObject) {
|
|
$parentObj = $relObj;
|
|
$relObj = $relObj->$relation();
|
|
// If the intermediate relationship objects have been created, then write them
|
|
if($i<sizeof($relation)-1 && !$relObj->ID || (!$relObj->ID && $parentObj != $this)) {
|
|
$relObj->write();
|
|
$relatedFieldName = $relation."ID";
|
|
$parentObj->$relatedFieldName = $relObj->ID;
|
|
$parentObj->write();
|
|
}
|
|
} else {
|
|
user_error(
|
|
"DataObject::update(): Can't traverse relationship '$relation'," .
|
|
"it has to be a has_one relationship or return a single DataObject",
|
|
E_USER_NOTICE
|
|
);
|
|
// unset relation object so we don't write properties to the wrong object
|
|
unset($relObj);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if($relObj) {
|
|
$relObj->$fieldName = $v;
|
|
$relObj->write();
|
|
$relatedFieldName = $relation."ID";
|
|
$this->$relatedFieldName = $relObj->ID;
|
|
$relObj->flushCache();
|
|
} else {
|
|
user_error("Couldn't follow dot syntax '$k' on '$this->class' object", E_USER_WARNING);
|
|
}
|
|
} else {
|
|
$this->$k = $v;
|
|
}
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Pass changes as a map, and try to
|
|
* get automatic casting for these fields.
|
|
* Doesn't write to the database. To write the data,
|
|
* use the write() method.
|
|
*
|
|
* @param array $data A map of field name to data values to update.
|
|
* @return DataObject $this
|
|
*/
|
|
public function castedUpdate($data) {
|
|
foreach($data as $k => $v) {
|
|
$this->setCastedField($k,$v);
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Merges data and relations from another object of same class,
|
|
* without conflict resolution. Allows to specify which
|
|
* dataset takes priority in case its not empty.
|
|
* has_one-relations are just transferred with priority 'right'.
|
|
* has_many and many_many-relations are added regardless of priority.
|
|
*
|
|
* Caution: has_many/many_many relations are moved rather than duplicated,
|
|
* meaning they are not connected to the merged object any longer.
|
|
* Caution: Just saves updated has_many/many_many relations to the database,
|
|
* doesn't write the updated object itself (just writes the object-properties).
|
|
* Caution: Does not delete the merged object.
|
|
* Caution: Does now overwrite Created date on the original object.
|
|
*
|
|
* @param $obj DataObject
|
|
* @param $priority String left|right Determines who wins in case of a conflict (optional)
|
|
* @param $includeRelations Boolean Merge any existing relations (optional)
|
|
* @param $overwriteWithEmpty Boolean Overwrite existing left values with empty right values.
|
|
* Only applicable with $priority='right'. (optional)
|
|
* @return Boolean
|
|
*/
|
|
public function merge($rightObj, $priority = 'right', $includeRelations = true, $overwriteWithEmpty = false) {
|
|
$leftObj = $this;
|
|
|
|
if($leftObj->ClassName != $rightObj->ClassName) {
|
|
// we can't merge similiar subclasses because they might have additional relations
|
|
user_error("DataObject->merge(): Invalid object class '{$rightObj->ClassName}'
|
|
(expected '{$leftObj->ClassName}').", E_USER_WARNING);
|
|
return false;
|
|
}
|
|
|
|
if(!$rightObj->ID) {
|
|
user_error("DataObject->merge(): Please write your merged-in object to the database before merging,
|
|
to make sure all relations are transferred properly.').", E_USER_WARNING);
|
|
return false;
|
|
}
|
|
|
|
// makes sure we don't merge data like ID or ClassName
|
|
$leftData = $leftObj->inheritedDatabaseFields();
|
|
$rightData = $rightObj->inheritedDatabaseFields();
|
|
|
|
foreach($rightData as $key=>$rightVal) {
|
|
// don't merge conflicting values if priority is 'left'
|
|
if($priority == 'left' && $leftObj->{$key} !== $rightObj->{$key}) continue;
|
|
|
|
// don't overwrite existing left values with empty right values (if $overwriteWithEmpty is set)
|
|
if($priority == 'right' && !$overwriteWithEmpty && empty($rightObj->{$key})) continue;
|
|
|
|
// TODO remove redundant merge of has_one fields
|
|
$leftObj->{$key} = $rightObj->{$key};
|
|
}
|
|
|
|
// merge relations
|
|
if($includeRelations) {
|
|
if($manyMany = $this->many_many()) {
|
|
foreach($manyMany as $relationship => $class) {
|
|
$leftComponents = $leftObj->getManyManyComponents($relationship);
|
|
$rightComponents = $rightObj->getManyManyComponents($relationship);
|
|
if($rightComponents && $rightComponents->exists()) {
|
|
$leftComponents->addMany($rightComponents->column('ID'));
|
|
}
|
|
$leftComponents->write();
|
|
}
|
|
}
|
|
|
|
if($hasMany = $this->has_many()) {
|
|
foreach($hasMany as $relationship => $class) {
|
|
$leftComponents = $leftObj->getComponents($relationship);
|
|
$rightComponents = $rightObj->getComponents($relationship);
|
|
if($rightComponents && $rightComponents->exists()) {
|
|
$leftComponents->addMany($rightComponents->column('ID'));
|
|
}
|
|
$leftComponents->write();
|
|
}
|
|
|
|
}
|
|
|
|
if($hasOne = $this->has_one()) {
|
|
foreach($hasOne as $relationship => $class) {
|
|
$leftComponent = $leftObj->getComponent($relationship);
|
|
$rightComponent = $rightObj->getComponent($relationship);
|
|
if($leftComponent->exists() && $rightComponent->exists() && $priority == 'right') {
|
|
$leftObj->{$relationship . 'ID'} = $rightObj->{$relationship . 'ID'};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Forces the record to think that all its data has changed.
|
|
* Doesn't write to the database. Only sets fields as changed
|
|
* if they are not already marked as changed.
|
|
*
|
|
* @return DataObject $this
|
|
*/
|
|
public function forceChange() {
|
|
// Ensure lazy fields loaded
|
|
$this->loadLazyFields();
|
|
|
|
// $this->record might not contain the blank values so we loop on $this->inheritedDatabaseFields() as well
|
|
$fieldNames = array_unique(array_merge(
|
|
array_keys($this->record),
|
|
array_keys($this->inheritedDatabaseFields())));
|
|
|
|
foreach($fieldNames as $fieldName) {
|
|
if(!isset($this->changed[$fieldName])) $this->changed[$fieldName] = self::CHANGE_STRICT;
|
|
// Populate the null values in record so that they actually get written
|
|
if(!isset($this->record[$fieldName])) $this->record[$fieldName] = null;
|
|
}
|
|
|
|
// @todo Find better way to allow versioned to write a new version after forceChange
|
|
if($this->isChanged('Version')) unset($this->changed['Version']);
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Validate the current object.
|
|
*
|
|
* By default, there is no validation - objects are always valid! However, you can overload this method in your
|
|
* DataObject sub-classes to specify custom validation, or use the hook through DataExtension.
|
|
*
|
|
* Invalid objects won't be able to be written - a warning will be thrown and no write will occur. onBeforeWrite()
|
|
* and onAfterWrite() won't get called either.
|
|
*
|
|
* It is expected that you call validate() in your own application to test that an object is valid before
|
|
* attempting a write, and respond appropriately if it isn't.
|
|
*
|
|
* @return A {@link ValidationResult} object
|
|
*/
|
|
public function validate() {
|
|
$result = ValidationResult::create();
|
|
$this->extend('validate', $result);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Event handler called before writing to the database.
|
|
* You can overload this to clean up or otherwise process data before writing it to the
|
|
* database. Don't forget to call parent::onBeforeWrite(), though!
|
|
*
|
|
* This called after {@link $this->validate()}, so you can be sure that your data is valid.
|
|
*
|
|
* @uses DataExtension->onBeforeWrite()
|
|
*/
|
|
protected function onBeforeWrite() {
|
|
$this->brokenOnWrite = false;
|
|
|
|
$dummy = null;
|
|
$this->extend('onBeforeWrite', $dummy);
|
|
}
|
|
|
|
/**
|
|
* Event handler called after writing to the database.
|
|
* You can overload this to act upon changes made to the data after it is written.
|
|
* $this->changed will have a record
|
|
* database. Don't forget to call parent::onAfterWrite(), though!
|
|
*
|
|
* @uses DataExtension->onAfterWrite()
|
|
*/
|
|
protected function onAfterWrite() {
|
|
$dummy = null;
|
|
$this->extend('onAfterWrite', $dummy);
|
|
}
|
|
|
|
/**
|
|
* Event handler called before deleting from the database.
|
|
* You can overload this to clean up or otherwise process data before delete this
|
|
* record. Don't forget to call parent::onBeforeDelete(), though!
|
|
*
|
|
* @uses DataExtension->onBeforeDelete()
|
|
*/
|
|
protected function onBeforeDelete() {
|
|
$this->brokenOnDelete = false;
|
|
|
|
$dummy = null;
|
|
$this->extend('onBeforeDelete', $dummy);
|
|
}
|
|
|
|
protected function onAfterDelete() {
|
|
$this->extend('onAfterDelete');
|
|
}
|
|
|
|
/**
|
|
* Load the default values in from the self::$defaults array.
|
|
* Will traverse the defaults of the current class and all its parent classes.
|
|
* Called by the constructor when creating new records.
|
|
*
|
|
* @uses DataExtension->populateDefaults()
|
|
* @return DataObject $this
|
|
*/
|
|
public function populateDefaults() {
|
|
$classes = array_reverse(ClassInfo::ancestry($this));
|
|
|
|
foreach($classes as $class) {
|
|
$defaults = Config::inst()->get($class, 'defaults', Config::UNINHERITED);
|
|
|
|
if($defaults && !is_array($defaults)) {
|
|
user_error("Bad '$this->class' defaults given: " . var_export($defaults, true),
|
|
E_USER_WARNING);
|
|
$defaults = null;
|
|
}
|
|
|
|
if($defaults) foreach($defaults as $fieldName => $fieldValue) {
|
|
// SRM 2007-03-06: Stricter check
|
|
if(!isset($this->$fieldName) || $this->$fieldName === null) {
|
|
$this->$fieldName = $fieldValue;
|
|
}
|
|
// Set many-many defaults with an array of ids
|
|
if(is_array($fieldValue) && $this->many_many($fieldName)) {
|
|
$manyManyJoin = $this->$fieldName();
|
|
$manyManyJoin->setByIdList($fieldValue);
|
|
}
|
|
}
|
|
if($class == 'DataObject') {
|
|
break;
|
|
}
|
|
}
|
|
|
|
$this->extend('populateDefaults');
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Determine validation of this object prior to write
|
|
*
|
|
* @return ValidationException Exception generated by this write, or null if valid
|
|
*/
|
|
protected function validateWrite() {
|
|
if ($this->ObsoleteClassName) {
|
|
return new ValidationException(
|
|
"Object is of class '{$this->ObsoleteClassName}' which doesn't exist - ".
|
|
"you need to change the ClassName before you can write it",
|
|
E_USER_WARNING
|
|
);
|
|
}
|
|
|
|
if(Config::inst()->get('DataObject', 'validation_enabled')) {
|
|
$result = $this->validate();
|
|
if (!$result->valid()) {
|
|
return new ValidationException(
|
|
$result,
|
|
$result->message(),
|
|
E_USER_WARNING
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prepare an object prior to write
|
|
*
|
|
* @throws ValidationException
|
|
*/
|
|
protected function preWrite() {
|
|
// Validate this object
|
|
if($writeException = $this->validateWrite()) {
|
|
// Used by DODs to clean up after themselves, eg, Versioned
|
|
$this->invokeWithExtensions('onAfterSkippedWrite');
|
|
throw $writeException;
|
|
}
|
|
|
|
// Check onBeforeWrite
|
|
$this->brokenOnWrite = true;
|
|
$this->onBeforeWrite();
|
|
if($this->brokenOnWrite) {
|
|
user_error("$this->class has a broken onBeforeWrite() function."
|
|
. " Make sure that you call parent::onBeforeWrite().", E_USER_ERROR);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Detects and updates all changes made to this object
|
|
*
|
|
* @param bool $forceChanges If set to true, force all fields to be treated as changed
|
|
* @return bool True if any changes are detected
|
|
*/
|
|
protected function updateChanges($forceChanges = false) {
|
|
// Update the changed array with references to changed obj-fields
|
|
foreach($this->record as $field => $value) {
|
|
// Only mark ID as changed if $forceChanges
|
|
if($field === 'ID' && !$forceChanges) continue;
|
|
// Determine if this field should be forced, or can mark itself, changed
|
|
if($forceChanges
|
|
|| !$this->isInDB()
|
|
|| (is_object($value) && method_exists($value, 'isChanged') && $value->isChanged())
|
|
) {
|
|
$this->changed[$field] = self::CHANGE_VALUE;
|
|
}
|
|
}
|
|
|
|
// Check changes exist, abort if there are no changes
|
|
return $this->changed && (bool)array_filter($this->changed);
|
|
}
|
|
|
|
/**
|
|
* Writes a subset of changes for a specific table to the given manipulation
|
|
*
|
|
* @param string $baseTable Base table
|
|
* @param string $now Timestamp to use for the current time
|
|
* @param bool $isNewRecord Whether this should be treated as a new record write
|
|
* @param array $manipulation Manipulation to write to
|
|
* @param string $class Table and Class to select and write to
|
|
*/
|
|
protected function prepareManipulationTable($baseTable, $now, $isNewRecord, &$manipulation, $class) {
|
|
$manipulation[$class] = array();
|
|
|
|
// Extract records for this table
|
|
foreach($this->record as $fieldName => $fieldValue) {
|
|
|
|
// Check if this record pertains to this table, and
|
|
// we're not attempting to reset the BaseTable->ID
|
|
if( empty($this->changed[$fieldName])
|
|
|| ($class === $baseTable && $fieldName === 'ID')
|
|
|| (!self::has_own_table_database_field($class, $fieldName)
|
|
&& !self::is_composite_field($class, $fieldName, false))
|
|
) {
|
|
continue;
|
|
}
|
|
|
|
// if database column doesn't correlate to a DBField instance...
|
|
$fieldObj = $this->dbObject($fieldName);
|
|
if(!$fieldObj) {
|
|
$fieldObj = DBField::create_field('Varchar', $fieldValue, $fieldName);
|
|
}
|
|
|
|
// Ensure DBField is repopulated and written to the manipulation
|
|
$fieldObj->setValue($fieldValue, $this->record);
|
|
$fieldObj->writeToManipulation($manipulation[$class]);
|
|
}
|
|
|
|
// Ensure update of Created and LastEdited columns
|
|
if($baseTable === $class) {
|
|
$manipulation[$class]['fields']['LastEdited'] = $now;
|
|
if($isNewRecord) {
|
|
$manipulation[$class]['fields']['Created']
|
|
= empty($this->record['Created'])
|
|
? $now
|
|
: $this->record['Created'];
|
|
$manipulation[$class]['fields']['ClassName'] = $this->class;
|
|
}
|
|
}
|
|
|
|
// Inserts done one the base table are performed in another step, so the manipulation should instead
|
|
// attempt an update, as though it were a normal update.
|
|
$manipulation[$class]['command'] = $isNewRecord ? 'insert' : 'update';
|
|
$manipulation[$class]['id'] = $this->record['ID'];
|
|
}
|
|
|
|
/**
|
|
* Ensures that a blank base record exists with the basic fixed fields for this dataobject
|
|
*
|
|
* Does nothing if an ID is already assigned for this record
|
|
*
|
|
* @param string $baseTable Base table
|
|
* @param string $now Timestamp to use for the current time
|
|
*/
|
|
protected function writeBaseRecord($baseTable, $now) {
|
|
// Generate new ID if not specified
|
|
if($this->isInDB()) return;
|
|
|
|
// Perform an insert on the base table
|
|
$insert = new SQLInsert('"'.$baseTable.'"');
|
|
$insert
|
|
->assign('"Created"', $now)
|
|
->execute();
|
|
$this->changed['ID'] = self::CHANGE_VALUE;
|
|
$this->record['ID'] = DB::get_generated_id($baseTable);
|
|
}
|
|
|
|
/**
|
|
* Generate and write the database manipulation for all changed fields
|
|
*
|
|
* @param string $baseTable Base table
|
|
* @param string $now Timestamp to use for the current time
|
|
* @param bool $isNewRecord If this is a new record
|
|
*/
|
|
protected function writeManipulation($baseTable, $now, $isNewRecord) {
|
|
// Generate database manipulations for each class
|
|
$manipulation = array();
|
|
foreach($this->getClassAncestry() as $class) {
|
|
if(self::has_own_table($class)) {
|
|
$this->prepareManipulationTable($baseTable, $now, $isNewRecord, $manipulation, $class);
|
|
}
|
|
}
|
|
|
|
// Allow extensions to extend this manipulation
|
|
$this->extend('augmentWrite', $manipulation);
|
|
|
|
// New records have their insert into the base data table done first, so that they can pass the
|
|
// generated ID on to the rest of the manipulation
|
|
if($isNewRecord) {
|
|
$manipulation[$baseTable]['command'] = 'update';
|
|
}
|
|
|
|
// Perform the manipulation
|
|
DB::manipulate($manipulation);
|
|
}
|
|
|
|
/**
|
|
* Writes all changes to this object to the database.
|
|
* - It will insert a record whenever ID isn't set, otherwise update.
|
|
* - All relevant tables will be updated.
|
|
* - $this->onBeforeWrite() gets called beforehand.
|
|
* - Extensions such as Versioned will ammend the database-write to ensure that a version is saved.
|
|
*
|
|
* @uses DataExtension->augmentWrite()
|
|
*
|
|
* @param boolean $showDebug Show debugging information
|
|
* @param boolean $forceInsert Run INSERT command rather than UPDATE, even if record already exists
|
|
* @param boolean $forceWrite Write to database even if there are no changes
|
|
* @param boolean $writeComponents Call write() on all associated component instances which were previously
|
|
* retrieved through {@link getComponent()}, {@link getComponents()} or
|
|
* {@link getManyManyComponents()} (Default: false)
|
|
* @return int The ID of the record
|
|
* @throws ValidationException Exception that can be caught and handled by the calling function
|
|
*/
|
|
public function write($showDebug = false, $forceInsert = false, $forceWrite = false, $writeComponents = false) {
|
|
$now = SS_Datetime::now()->Rfc2822();
|
|
|
|
// Execute pre-write tasks
|
|
$this->preWrite();
|
|
|
|
// Check if we are doing an update or an insert
|
|
$isNewRecord = !$this->isInDB() || $forceInsert;
|
|
|
|
// Check changes exist, abort if there are none
|
|
$hasChanges = $this->updateChanges($forceInsert);
|
|
if($hasChanges || $forceWrite || $isNewRecord) {
|
|
// New records have their insert into the base data table done first, so that they can pass the
|
|
// generated primary key on to the rest of the manipulation
|
|
$baseTable = ClassInfo::baseDataClass($this->class);
|
|
$this->writeBaseRecord($baseTable, $now);
|
|
|
|
// Write the DB manipulation for all changed fields
|
|
$this->writeManipulation($baseTable, $now, $isNewRecord);
|
|
|
|
// If there's any relations that couldn't be saved before, save them now (we have an ID here)
|
|
$this->writeRelations();
|
|
$this->onAfterWrite();
|
|
$this->changed = array();
|
|
} else {
|
|
if($showDebug) Debug::message("no changes for DataObject");
|
|
|
|
// Used by DODs to clean up after themselves, eg, Versioned
|
|
$this->invokeWithExtensions('onAfterSkippedWrite');
|
|
}
|
|
|
|
// Ensure Created and LastEdited are populated
|
|
if(!isset($this->record['Created'])) {
|
|
$this->record['Created'] = $now;
|
|
}
|
|
$this->record['LastEdited'] = $now;
|
|
|
|
// Write relations as necessary
|
|
if($writeComponents) $this->writeComponents(true);
|
|
|
|
// Clears the cache for this object so get_one returns the correct object.
|
|
$this->flushCache();
|
|
|
|
return $this->record['ID'];
|
|
}
|
|
|
|
/**
|
|
* Writes cached relation lists to the database, if possible
|
|
*/
|
|
public function writeRelations() {
|
|
if(!$this->isInDB()) return;
|
|
|
|
// If there's any relations that couldn't be saved before, save them now (we have an ID here)
|
|
if($this->unsavedRelations) {
|
|
foreach($this->unsavedRelations as $name => $list) {
|
|
$list->changeToList($this->$name());
|
|
}
|
|
$this->unsavedRelations = array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Write the cached components to the database. Cached components could refer to two different instances of the
|
|
* same record.
|
|
*
|
|
* @param $recursive Recursively write components
|
|
* @return DataObject $this
|
|
*/
|
|
public function writeComponents($recursive = false) {
|
|
if(!$this->components) return $this;
|
|
|
|
foreach($this->components as $component) {
|
|
$component->write(false, false, false, $recursive);
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Delete this data object.
|
|
* $this->onBeforeDelete() gets called.
|
|
* Note that in Versioned objects, both Stage and Live will be deleted.
|
|
* @uses DataExtension->augmentSQL()
|
|
*/
|
|
public function delete() {
|
|
$this->brokenOnDelete = true;
|
|
$this->onBeforeDelete();
|
|
if($this->brokenOnDelete) {
|
|
user_error("$this->class has a broken onBeforeDelete() function."
|
|
. " Make sure that you call parent::onBeforeDelete().", E_USER_ERROR);
|
|
}
|
|
|
|
// Deleting a record without an ID shouldn't do anything
|
|
if(!$this->ID) throw new LogicException("DataObject::delete() called on a DataObject without an ID");
|
|
|
|
// TODO: This is quite ugly. To improve:
|
|
// - move the details of the delete code in the DataQuery system
|
|
// - update the code to just delete the base table, and rely on cascading deletes in the DB to do the rest
|
|
// obviously, that means getting requireTable() to configure cascading deletes ;-)
|
|
$srcQuery = DataList::create($this->class, $this->model)->where("ID = $this->ID")->dataQuery()->query();
|
|
foreach($srcQuery->queriedTables() as $table) {
|
|
$delete = new SQLDelete("\"$table\"", array('"ID"' => $this->ID));
|
|
$delete->execute();
|
|
}
|
|
// Remove this item out of any caches
|
|
$this->flushCache();
|
|
|
|
$this->onAfterDelete();
|
|
|
|
$this->OldID = $this->ID;
|
|
$this->ID = 0;
|
|
}
|
|
|
|
/**
|
|
* Delete the record with the given ID.
|
|
*
|
|
* @param string $className The class name of the record to be deleted
|
|
* @param int $id ID of record to be deleted
|
|
*/
|
|
public static function delete_by_id($className, $id) {
|
|
$obj = DataObject::get_by_id($className, $id);
|
|
if($obj) {
|
|
$obj->delete();
|
|
} else {
|
|
user_error("$className object #$id wasn't found when calling DataObject::delete_by_id", E_USER_WARNING);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the class ancestry, including the current class name.
|
|
* The ancestry will be returned as an array of class names, where the 0th element
|
|
* will be the class that inherits directly from DataObject, and the last element
|
|
* will be the current class.
|
|
*
|
|
* @return array Class ancestry
|
|
*/
|
|
public function getClassAncestry() {
|
|
if(!isset(DataObject::$_cache_get_class_ancestry[$this->class])) {
|
|
DataObject::$_cache_get_class_ancestry[$this->class] = array($this->class);
|
|
while(($class=get_parent_class(DataObject::$_cache_get_class_ancestry[$this->class][0])) != "DataObject") {
|
|
array_unshift(DataObject::$_cache_get_class_ancestry[$this->class], $class);
|
|
}
|
|
}
|
|
return DataObject::$_cache_get_class_ancestry[$this->class];
|
|
}
|
|
|
|
/**
|
|
* Return a component object from a one to one relationship, as a DataObject.
|
|
* If no component is available, an 'empty component' will be returned for
|
|
* non-polymorphic relations, or for polymorphic relations with a class set.
|
|
*
|
|
* @param string $componentName Name of the component
|
|
*
|
|
* @return DataObject The component object. It's exact type will be that of the component.
|
|
*/
|
|
public function getComponent($componentName) {
|
|
if(isset($this->components[$componentName])) {
|
|
return $this->components[$componentName];
|
|
}
|
|
|
|
if($class = $this->has_one($componentName)) {
|
|
$joinField = $componentName . 'ID';
|
|
$joinID = $this->getField($joinField);
|
|
|
|
// Extract class name for polymorphic relations
|
|
if($class === 'DataObject') {
|
|
$class = $this->getField($componentName . 'Class');
|
|
if(empty($class)) return null;
|
|
}
|
|
|
|
if($joinID) {
|
|
$component = $this->model->$class->byID($joinID);
|
|
}
|
|
|
|
if(empty($component)) {
|
|
$component = $this->model->$class->newObject();
|
|
}
|
|
} elseif($class = $this->belongs_to($componentName)) {
|
|
|
|
$joinField = $this->getRemoteJoinField($componentName, 'belongs_to', $polymorphic);
|
|
$joinID = $this->ID;
|
|
|
|
if($joinID) {
|
|
|
|
$filter = $polymorphic
|
|
? array(
|
|
"{$joinField}ID" => $joinID,
|
|
"{$joinField}Class" => $this->class
|
|
)
|
|
: array(
|
|
$joinField => $joinID
|
|
);
|
|
$component = DataObject::get($class)->filter($filter)->first();
|
|
}
|
|
|
|
if(empty($component)) {
|
|
$component = $this->model->$class->newObject();
|
|
if($polymorphic) {
|
|
$component->{$joinField.'ID'} = $this->ID;
|
|
$component->{$joinField.'Class'} = $this->class;
|
|
} else {
|
|
$component->$joinField = $this->ID;
|
|
}
|
|
}
|
|
} else {
|
|
throw new Exception("DataObject->getComponent(): Could not find component '$componentName'.");
|
|
}
|
|
|
|
$this->components[$componentName] = $component;
|
|
return $component;
|
|
}
|
|
|
|
/**
|
|
* Returns a one-to-many relation as a HasManyList
|
|
*
|
|
* @param string $componentName Name of the component
|
|
* @param string $filter A filter to be inserted into the WHERE clause
|
|
* @param string|array $sort A sort expression to be inserted into the ORDER BY clause. If omitted, the static
|
|
* field $default_sort on the component class will be used.
|
|
* @param string $join Deprecated, use leftJoin($table, $joinClause) instead
|
|
* @param string|array $limit A limit expression to be inserted into the LIMIT clause
|
|
*
|
|
* @return HasManyList The components of the one-to-many relationship.
|
|
*/
|
|
public function getComponents($componentName, $filter = "", $sort = "", $join = "", $limit = null) {
|
|
$result = null;
|
|
|
|
if(!$componentClass = $this->has_many($componentName)) {
|
|
user_error("DataObject::getComponents(): Unknown 1-to-many component '$componentName'"
|
|
. " on class '$this->class'", E_USER_ERROR);
|
|
}
|
|
|
|
if($join) {
|
|
throw new \InvalidArgumentException(
|
|
'The $join argument has been removed. Use leftJoin($table, $joinClause) instead.'
|
|
);
|
|
}
|
|
|
|
// If we haven't been written yet, we can't save these relations, so use a list that handles this case
|
|
if(!$this->ID) {
|
|
if(!isset($this->unsavedRelations[$componentName])) {
|
|
$this->unsavedRelations[$componentName] =
|
|
new UnsavedRelationList($this->class, $componentName, $componentClass);
|
|
}
|
|
return $this->unsavedRelations[$componentName];
|
|
}
|
|
|
|
// Determine type and nature of foreign relation
|
|
$joinField = $this->getRemoteJoinField($componentName, 'has_many', $polymorphic);
|
|
if($polymorphic) {
|
|
$result = PolymorphicHasManyList::create($componentClass, $joinField, $this->class);
|
|
} else {
|
|
$result = HasManyList::create($componentClass, $joinField);
|
|
}
|
|
|
|
if($this->model) $result->setDataModel($this->model);
|
|
|
|
return $result
|
|
->forForeignID($this->ID)
|
|
->where($filter)
|
|
->limit($limit)
|
|
->sort($sort);
|
|
}
|
|
|
|
/**
|
|
* @deprecated 3.1 Use getComponents to get a filtered DataList for an object's relation
|
|
*/
|
|
public function getComponentsQuery($componentName, $filter = "", $sort = "", $join = "", $limit = "") {
|
|
Deprecation::notice('3.1', "Use getComponents to get a filtered DataList for an object's relation");
|
|
return $this->getComponents($componentName, $filter, $sort, $join, $limit);
|
|
}
|
|
|
|
/**
|
|
* Find the foreign class of a relation on this DataObject, regardless of the relation type.
|
|
*
|
|
* @param $relationName Relation name.
|
|
* @return string Class name, or null if not found.
|
|
*/
|
|
public function getRelationClass($relationName) {
|
|
// Go through all relationship configuration fields.
|
|
$candidates = array_merge(
|
|
($relations = Config::inst()->get($this->class, 'has_one')) ? $relations : array(),
|
|
($relations = Config::inst()->get($this->class, 'has_many')) ? $relations : array(),
|
|
($relations = Config::inst()->get($this->class, 'many_many')) ? $relations : array(),
|
|
($relations = Config::inst()->get($this->class, 'belongs_many_many')) ? $relations : array(),
|
|
($relations = Config::inst()->get($this->class, 'belongs_to')) ? $relations : array()
|
|
);
|
|
|
|
if (isset($candidates[$relationName])) {
|
|
$remoteClass = $candidates[$relationName];
|
|
|
|
// If dot notation is present, extract just the first part that contains the class.
|
|
if(($fieldPos = strpos($remoteClass, '.'))!==false) {
|
|
return substr($remoteClass, 0, $fieldPos);
|
|
}
|
|
|
|
// Otherwise just return the class
|
|
return $remoteClass;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Tries to find the database key on another object that is used to store a
|
|
* relationship to this class. If no join field can be found it defaults to 'ParentID'.
|
|
*
|
|
* If the remote field is polymorphic then $polymorphic is set to true, and the return value
|
|
* is in the form 'Relation' instead of 'RelationID', referencing the composite DBField.
|
|
*
|
|
* @param string $component Name of the relation on the current object pointing to the
|
|
* remote object.
|
|
* @param string $type the join type - either 'has_many' or 'belongs_to'
|
|
* @param boolean $polymorphic Flag set to true if the remote join field is polymorphic.
|
|
* @return string
|
|
*/
|
|
public function getRemoteJoinField($component, $type = 'has_many', &$polymorphic = false) {
|
|
// Extract relation from current object
|
|
$remoteClass = $this->$type($component, false);
|
|
if(empty($remoteClass)) {
|
|
throw new Exception("Unknown $type component '$component' on class '$this->class'");
|
|
}
|
|
if(!ClassInfo::exists(strtok($remoteClass, '.'))) {
|
|
throw new Exception(
|
|
"Class '$remoteClass' not found, but used in $type component '$component' on class '$this->class'"
|
|
);
|
|
}
|
|
|
|
// If presented with an explicit field name (using dot notation) then extract field name
|
|
$remoteField = null;
|
|
if(strpos($remoteClass, '.') !== false) {
|
|
list($remoteClass, $remoteField) = explode('.', $remoteClass);
|
|
}
|
|
|
|
// Reference remote has_one to check against
|
|
$remoteRelations = Config::inst()->get($remoteClass, 'has_one');
|
|
|
|
// Without an explicit field name, attempt to match the first remote field
|
|
// with the same type as the current class
|
|
if(empty($remoteField)) {
|
|
// look for remote has_one joins on this class or any parent classes
|
|
$remoteRelationsMap = array_flip($remoteRelations);
|
|
foreach(array_reverse(ClassInfo::ancestry($this)) as $class) {
|
|
if(array_key_exists($class, $remoteRelationsMap)) {
|
|
$remoteField = $remoteRelationsMap[$class];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// In case of an indeterminate remote field show an error
|
|
if(empty($remoteField)) {
|
|
$polymorphic = false;
|
|
$message = "No has_one found on class '$remoteClass'";
|
|
if($type == 'has_many') {
|
|
// include a hint for has_many that is missing a has_one
|
|
$message .= ", the has_many relation from '$this->class' to '$remoteClass'";
|
|
$message .= " requires a has_one on '$remoteClass'";
|
|
}
|
|
throw new Exception($message);
|
|
}
|
|
|
|
// If given an explicit field name ensure the related class specifies this
|
|
if(empty($remoteRelations[$remoteField])) {
|
|
throw new Exception("Missing expected has_one named '$remoteField'
|
|
on class '$remoteClass' referenced by $type named '$component'
|
|
on class {$this->class}"
|
|
);
|
|
}
|
|
|
|
// Inspect resulting found relation
|
|
if($remoteRelations[$remoteField] === 'DataObject') {
|
|
$polymorphic = true;
|
|
return $remoteField; // Composite polymorphic field does not include 'ID' suffix
|
|
} else {
|
|
$polymorphic = false;
|
|
return $remoteField . 'ID';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns a many-to-many component, as a ManyManyList.
|
|
* @param string $componentName Name of the many-many component
|
|
* @return ManyManyList The set of components
|
|
*
|
|
* @todo Implement query-params
|
|
*/
|
|
public function getManyManyComponents($componentName, $filter = "", $sort = "", $join = "", $limit = "") {
|
|
list($parentClass, $componentClass, $parentField, $componentField, $table) = $this->many_many($componentName);
|
|
|
|
// If we haven't been written yet, we can't save these relations, so use a list that handles this case
|
|
if(!$this->ID) {
|
|
if(!isset($this->unsavedRelations[$componentName])) {
|
|
$this->unsavedRelations[$componentName] =
|
|
new UnsavedRelationList($parentClass, $componentName, $componentClass);
|
|
}
|
|
return $this->unsavedRelations[$componentName];
|
|
}
|
|
|
|
$result = ManyManyList::create(
|
|
$componentClass, $table, $componentField, $parentField,
|
|
$this->many_many_extraFields($componentName)
|
|
);
|
|
if($this->model) $result->setDataModel($this->model);
|
|
|
|
// If this is called on a singleton, then we return an 'orphaned relation' that can have the
|
|
// foreignID set elsewhere.
|
|
return $result
|
|
->forForeignID($this->ID)
|
|
->where($filter)
|
|
->sort($sort)
|
|
->limit($limit);
|
|
}
|
|
|
|
/**
|
|
* Return the class of a one-to-one component. If $component is null, return all of the one-to-one components and
|
|
* their classes. If the selected has_one is a polymorphic field then 'DataObject' will be returned for the type.
|
|
*
|
|
* @param string $component Name of component
|
|
*
|
|
* @return string|array The class of the one-to-one component, or an array of all one-to-one components and their
|
|
* classes.
|
|
*/
|
|
public function has_one($component = null) {
|
|
$classes = ClassInfo::ancestry($this);
|
|
|
|
foreach($classes as $class) {
|
|
// Wait until after we reach DataObject
|
|
if(in_array($class, array('Object', 'ViewableData', 'DataObject'))) continue;
|
|
|
|
if($component) {
|
|
$hasOne = Config::inst()->get($class, 'has_one', Config::UNINHERITED);
|
|
|
|
if(isset($hasOne[$component])) {
|
|
return $hasOne[$component];
|
|
}
|
|
} else {
|
|
$newItems = (array)Config::inst()->get($class, 'has_one', Config::UNINHERITED);
|
|
// Validate the data
|
|
foreach($newItems as $k => $v) {
|
|
if(!is_string($k) || is_numeric($k) || !is_string($v)) {
|
|
user_error("$class::\$has_one has a bad entry: "
|
|
. var_export($k,true). " => " . var_export($v,true) . ". Each map key should be a"
|
|
. " relationship name, and the map value should be the data class to join to.", E_USER_ERROR);
|
|
}
|
|
}
|
|
$items = isset($items) ? array_merge($newItems, (array)$items) : $newItems;
|
|
}
|
|
}
|
|
return isset($items) ? $items : null;
|
|
}
|
|
|
|
/**
|
|
* Returns the class of a remote belongs_to relationship. If no component is specified a map of all components and
|
|
* their class name will be returned.
|
|
*
|
|
* @param string $component
|
|
* @param bool $classOnly If this is TRUE, than any has_many relationships in the form "ClassName.Field" will have
|
|
* the field data stripped off. It defaults to TRUE.
|
|
* @return string|array
|
|
*/
|
|
public function belongs_to($component = null, $classOnly = true) {
|
|
$belongsTo = $this->config()->belongs_to;
|
|
|
|
if($component) {
|
|
if($belongsTo && array_key_exists($component, $belongsTo)) {
|
|
$belongsTo = $belongsTo[$component];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if($belongsTo && $classOnly) {
|
|
return preg_replace('/(.+)?\..+/', '$1', $belongsTo);
|
|
} else {
|
|
return $belongsTo ? $belongsTo : array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return all of the database fields defined in self::$db and all the parent classes.
|
|
* Doesn't include any fields specified by self::$has_one. Use $this->has_one() to get these fields
|
|
*
|
|
* @param string $fieldName Limit the output to a specific field name
|
|
* @return array The database fields
|
|
*/
|
|
public function db($fieldName = null) {
|
|
$classes = ClassInfo::ancestry($this);
|
|
$good = false;
|
|
$items = array();
|
|
|
|
foreach($classes as $class) {
|
|
// Wait until after we reach DataObject
|
|
if(!$good) {
|
|
if($class == 'DataObject') {
|
|
$good = true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if(isset(self::$_cache_db[$class])) {
|
|
$dbItems = self::$_cache_db[$class];
|
|
} else {
|
|
$dbItems = (array) Config::inst()->get($class, 'db', Config::UNINHERITED);
|
|
self::$_cache_db[$class] = $dbItems;
|
|
}
|
|
|
|
if($fieldName) {
|
|
if(isset($dbItems[$fieldName])) {
|
|
return $dbItems[$fieldName];
|
|
}
|
|
} else {
|
|
// Validate the data
|
|
foreach($dbItems as $k => $v) {
|
|
if(!is_string($k) || is_numeric($k) || !is_string($v)) {
|
|
user_error("$class::\$db has a bad entry: "
|
|
. var_export($k,true). " => " . var_export($v,true) . ". Each map key should be a"
|
|
. " property name, and the map value should be the property type.", E_USER_ERROR);
|
|
}
|
|
}
|
|
|
|
$items = isset($items) ? array_merge((array) $items, $dbItems) : $dbItems;
|
|
}
|
|
}
|
|
|
|
return $items;
|
|
}
|
|
|
|
/**
|
|
* Gets the class of a one-to-many relationship. If no $component is specified then an array of all the one-to-many
|
|
* relationships and their classes will be returned.
|
|
*
|
|
* @param string $component Name of component
|
|
* @param bool $classOnly If this is TRUE, than any has_many relationships in the form "ClassName.Field" will have
|
|
* the field data stripped off. It defaults to TRUE.
|
|
* @return string|array
|
|
*/
|
|
public function has_many($component = null, $classOnly = true) {
|
|
$hasMany = $this->config()->has_many;
|
|
|
|
if($component) {
|
|
if($hasMany && array_key_exists($component, $hasMany)) {
|
|
$hasMany = $hasMany[$component];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if($hasMany && $classOnly) {
|
|
return preg_replace('/(.+)?\..+/', '$1', $hasMany);
|
|
} else {
|
|
return $hasMany ? $hasMany : array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the many-to-many extra fields specification.
|
|
*
|
|
* If you don't specify a component name, it returns all
|
|
* extra fields for all components available.
|
|
*
|
|
* @param string $component Name of component
|
|
* @return array
|
|
*/
|
|
public function many_many_extraFields($component = null) {
|
|
$classes = ClassInfo::ancestry($this);
|
|
|
|
foreach($classes as $class) {
|
|
if(in_array($class, array('ViewableData', 'Object', 'DataObject'))) continue;
|
|
$relationName = null;
|
|
|
|
// Find extra fields for one component
|
|
if($component) {
|
|
$SNG_class = singleton($class);
|
|
$extraFields = $SNG_class->stat('many_many_extraFields');
|
|
|
|
// Extra fields are immediately available on this class
|
|
if(isset($extraFields[$component])) {
|
|
return $extraFields[$component];
|
|
}
|
|
|
|
$manyMany = $SNG_class->stat('many_many');
|
|
$candidate = (isset($manyMany[$component])) ? $manyMany[$component] : null;
|
|
if($candidate) {
|
|
$SNG_candidate = singleton($candidate);
|
|
$candidateManyMany = $SNG_candidate->stat('belongs_many_many');
|
|
|
|
// Find the relation given the class
|
|
if($candidateManyMany) foreach($candidateManyMany as $relation => $relatedClass) {
|
|
if($relatedClass == $class) {
|
|
$relationName = $relation;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if($relationName) {
|
|
$extraFields = $SNG_candidate->stat('many_many_extraFields');
|
|
if(isset($extraFields[$relationName])) {
|
|
return $extraFields[$relationName];
|
|
}
|
|
}
|
|
}
|
|
|
|
$manyMany = $SNG_class->stat('belongs_many_many');
|
|
$candidate = (isset($manyMany[$component])) ? $manyMany[$component] : null;
|
|
if($candidate) {
|
|
$SNG_candidate = singleton($candidate);
|
|
$candidateManyMany = $SNG_candidate->stat('many_many');
|
|
|
|
// Find the relation given the class
|
|
if($candidateManyMany) foreach($candidateManyMany as $relation => $relatedClass) {
|
|
if($relatedClass == $class) {
|
|
$relationName = $relation;
|
|
}
|
|
}
|
|
|
|
$extraFields = $SNG_candidate->stat('many_many_extraFields');
|
|
if(isset($extraFields[$relationName])) {
|
|
return $extraFields[$relationName];
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
// Find all the extra fields for all components
|
|
$newItems = eval("return (array){$class}::\$many_many_extraFields;");
|
|
|
|
foreach($newItems as $k => $v) {
|
|
if(!is_array($v)) {
|
|
user_error(
|
|
"$class::\$many_many_extraFields has a bad entry: "
|
|
. var_export($k, true) . " => " . var_export($v, true)
|
|
. ". Each many_many_extraFields entry should map to a field specification array.",
|
|
E_USER_ERROR
|
|
);
|
|
}
|
|
}
|
|
|
|
return isset($items) ? array_merge($newItems, $items) : $newItems;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return information about a many-to-many component.
|
|
* The return value is an array of (parentclass, childclass). If $component is null, then all many-many
|
|
* components are returned.
|
|
*
|
|
* @param string $component Name of component
|
|
*
|
|
* @return array An array of (parentclass, childclass), or an array of all many-many components
|
|
*/
|
|
public function many_many($component = null) {
|
|
$classes = ClassInfo::ancestry($this);
|
|
|
|
foreach($classes as $class) {
|
|
// Wait until after we reach DataObject
|
|
if(in_array($class, array('ViewableData', 'Object', 'DataObject'))) continue;
|
|
|
|
if($component) {
|
|
$manyMany = Config::inst()->get($class, 'many_many', Config::UNINHERITED);
|
|
// Try many_many
|
|
$candidate = (isset($manyMany[$component])) ? $manyMany[$component] : null;
|
|
if($candidate) {
|
|
$parentField = $class . "ID";
|
|
$childField = ($class == $candidate) ? "ChildID" : $candidate . "ID";
|
|
return array($class, $candidate, $parentField, $childField, "{$class}_$component");
|
|
}
|
|
|
|
// Try belongs_many_many
|
|
$belongsManyMany = Config::inst()->get($class, 'belongs_many_many', Config::UNINHERITED);
|
|
$candidate = (isset($belongsManyMany[$component])) ? $belongsManyMany[$component] : null;
|
|
if($candidate) {
|
|
$childField = $candidate . "ID";
|
|
|
|
// We need to find the inverse component name
|
|
$otherManyMany = Config::inst()->get($candidate, 'many_many', Config::UNINHERITED);
|
|
if(!$otherManyMany) {
|
|
user_error("Inverse component of $candidate not found ({$this->class})", E_USER_ERROR);
|
|
}
|
|
|
|
foreach($otherManyMany as $inverseComponentName => $candidateClass) {
|
|
if($candidateClass == $class || is_subclass_of($class, $candidateClass)) {
|
|
$parentField = ($class == $candidate) ? "ChildID" : $candidateClass . "ID";
|
|
|
|
return array($class, $candidate, $parentField, $childField,
|
|
"{$candidate}_$inverseComponentName");
|
|
}
|
|
}
|
|
user_error("Orphaned \$belongs_many_many value for $this->class.$component", E_USER_ERROR);
|
|
}
|
|
} else {
|
|
$newItems = (array)Config::inst()->get($class, 'many_many', Config::UNINHERITED);
|
|
// Validate the data
|
|
foreach($newItems as $k => $v) {
|
|
if(!is_string($k) || is_numeric($k) || !is_string($v)) {
|
|
user_error("$class::\$many_many has a bad entry: "
|
|
. var_export($k,true). " => " . var_export($v,true) . ". Each map key should be a"
|
|
. " relationship name, and the map value should be the data class to join to.", E_USER_ERROR);
|
|
}
|
|
}
|
|
$items = isset($items) ? array_merge($newItems, $items) : $newItems;
|
|
|
|
$newItems = (array)Config::inst()->get($class, 'belongs_many_many', Config::UNINHERITED);
|
|
// Validate the data
|
|
foreach($newItems as $k => $v) {
|
|
if(!is_string($k) || is_numeric($k) || !is_string($v)) {
|
|
user_error("$class::\$belongs_many_many has a bad entry: "
|
|
. var_export($k,true). " => " . var_export($v,true) . ". Each map key should be a"
|
|
. " relationship name, and the map value should be the data class to join to.", E_USER_ERROR);
|
|
}
|
|
}
|
|
|
|
$items = isset($items) ? array_merge($newItems, $items) : $newItems;
|
|
}
|
|
}
|
|
|
|
return isset($items) ? $items : null;
|
|
}
|
|
|
|
/**
|
|
* This returns an array (if it exists) describing the database extensions that are required, or false if none
|
|
*
|
|
* This is experimental, and is currently only a Postgres-specific enhancement.
|
|
*
|
|
* @return array or false
|
|
*/
|
|
public function database_extensions($class){
|
|
$extensions = Config::inst()->get($class, 'database_extensions', Config::UNINHERITED);
|
|
|
|
if($extensions)
|
|
return $extensions;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Generates a SearchContext to be used for building and processing
|
|
* a generic search form for properties on this object.
|
|
*
|
|
* @return SearchContext
|
|
*/
|
|
public function getDefaultSearchContext() {
|
|
return new SearchContext(
|
|
$this->class,
|
|
$this->scaffoldSearchFields(),
|
|
$this->defaultSearchFilters()
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Determine which properties on the DataObject are
|
|
* searchable, and map them to their default {@link FormField}
|
|
* representations. Used for scaffolding a searchform for {@link ModelAdmin}.
|
|
*
|
|
* Some additional logic is included for switching field labels, based on
|
|
* how generic or specific the field type is.
|
|
*
|
|
* Used by {@link SearchContext}.
|
|
*
|
|
* @param array $_params
|
|
* 'fieldClasses': Associative array of field names as keys and FormField classes as values
|
|
* 'restrictFields': Numeric array of a field name whitelist
|
|
* @return FieldList
|
|
*/
|
|
public function scaffoldSearchFields($_params = null) {
|
|
$params = array_merge(
|
|
array(
|
|
'fieldClasses' => false,
|
|
'restrictFields' => false
|
|
),
|
|
(array)$_params
|
|
);
|
|
$fields = new FieldList();
|
|
foreach($this->searchableFields() as $fieldName => $spec) {
|
|
if($params['restrictFields'] && !in_array($fieldName, $params['restrictFields'])) continue;
|
|
|
|
// If a custom fieldclass is provided as a string, use it
|
|
if($params['fieldClasses'] && isset($params['fieldClasses'][$fieldName])) {
|
|
$fieldClass = $params['fieldClasses'][$fieldName];
|
|
$field = new $fieldClass($fieldName);
|
|
// If we explicitly set a field, then construct that
|
|
} else if(isset($spec['field'])) {
|
|
// If it's a string, use it as a class name and construct
|
|
if(is_string($spec['field'])) {
|
|
$fieldClass = $spec['field'];
|
|
$field = new $fieldClass($fieldName);
|
|
|
|
// If it's a FormField object, then just use that object directly.
|
|
} else if($spec['field'] instanceof FormField) {
|
|
$field = $spec['field'];
|
|
|
|
// Otherwise we have a bug
|
|
} else {
|
|
user_error("Bad value for searchable_fields, 'field' value: "
|
|
. var_export($spec['field'], true), E_USER_WARNING);
|
|
}
|
|
|
|
// Otherwise, use the database field's scaffolder
|
|
} else {
|
|
$field = $this->relObject($fieldName)->scaffoldSearchField();
|
|
}
|
|
|
|
if (strstr($fieldName, '.')) {
|
|
$field->setName(str_replace('.', '__', $fieldName));
|
|
}
|
|
$field->setTitle($spec['title']);
|
|
|
|
$fields->push($field);
|
|
}
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* Scaffold a simple edit form for all properties on this dataobject,
|
|
* based on default {@link FormField} mapping in {@link DBField::scaffoldFormField()}.
|
|
* Field labels/titles will be auto generated from {@link DataObject::fieldLabels()}.
|
|
*
|
|
* @uses FormScaffolder
|
|
*
|
|
* @param array $_params Associative array passing through properties to {@link FormScaffolder}.
|
|
* @return FieldList
|
|
*/
|
|
public function scaffoldFormFields($_params = null) {
|
|
$params = array_merge(
|
|
array(
|
|
'tabbed' => false,
|
|
'includeRelations' => false,
|
|
'restrictFields' => false,
|
|
'fieldClasses' => false,
|
|
'ajaxSafe' => false
|
|
),
|
|
(array)$_params
|
|
);
|
|
|
|
$fs = new FormScaffolder($this);
|
|
$fs->tabbed = $params['tabbed'];
|
|
$fs->includeRelations = $params['includeRelations'];
|
|
$fs->restrictFields = $params['restrictFields'];
|
|
$fs->fieldClasses = $params['fieldClasses'];
|
|
$fs->ajaxSafe = $params['ajaxSafe'];
|
|
|
|
return $fs->getFieldList();
|
|
}
|
|
|
|
/**
|
|
* Allows user code to hook into DataObject::getCMSFields prior to updateCMSFields
|
|
* being called on extensions
|
|
*
|
|
* @param callable $callback The callback to execute
|
|
*/
|
|
protected function beforeUpdateCMSFields($callback) {
|
|
$this->beforeExtending('updateCMSFields', $callback);
|
|
}
|
|
|
|
/**
|
|
* Centerpiece of every data administration interface in Silverstripe,
|
|
* which returns a {@link FieldList} suitable for a {@link Form} object.
|
|
* If not overloaded, we're using {@link scaffoldFormFields()} to automatically
|
|
* generate this set. To customize, overload this method in a subclass
|
|
* or extended onto it by using {@link DataExtension->updateCMSFields()}.
|
|
*
|
|
* <code>
|
|
* class MyCustomClass extends DataObject {
|
|
* static $db = array('CustomProperty'=>'Boolean');
|
|
*
|
|
* function getCMSFields() {
|
|
* $fields = parent::getCMSFields();
|
|
* $fields->addFieldToTab('Root.Content',new CheckboxField('CustomProperty'));
|
|
* return $fields;
|
|
* }
|
|
* }
|
|
* </code>
|
|
*
|
|
* @see Good example of complex FormField building: SiteTree::getCMSFields()
|
|
*
|
|
* @return FieldList Returns a TabSet for usage within the CMS - don't use for frontend forms.
|
|
*/
|
|
public function getCMSFields() {
|
|
$tabbedFields = $this->scaffoldFormFields(array(
|
|
// Don't allow has_many/many_many relationship editing before the record is first saved
|
|
'includeRelations' => ($this->ID > 0),
|
|
'tabbed' => true,
|
|
'ajaxSafe' => true
|
|
));
|
|
|
|
$this->extend('updateCMSFields', $tabbedFields);
|
|
|
|
return $tabbedFields;
|
|
}
|
|
|
|
/**
|
|
* need to be overload by solid dataobject, so that the customised actions of that dataobject,
|
|
* including that dataobject's extensions customised actions could be added to the EditForm.
|
|
*
|
|
* @return an Empty FieldList(); need to be overload by solid subclass
|
|
*/
|
|
public function getCMSActions() {
|
|
$actions = new FieldList();
|
|
$this->extend('updateCMSActions', $actions);
|
|
return $actions;
|
|
}
|
|
|
|
|
|
/**
|
|
* Used for simple frontend forms without relation editing
|
|
* or {@link TabSet} behaviour. Uses {@link scaffoldFormFields()}
|
|
* by default. To customize, either overload this method in your
|
|
* subclass, or extend it by {@link DataExtension->updateFrontEndFields()}.
|
|
*
|
|
* @todo Decide on naming for "website|frontend|site|page" and stick with it in the API
|
|
*
|
|
* @param array $params See {@link scaffoldFormFields()}
|
|
* @return FieldList Always returns a simple field collection without TabSet.
|
|
*/
|
|
public function getFrontEndFields($params = null) {
|
|
$untabbedFields = $this->scaffoldFormFields($params);
|
|
$this->extend('updateFrontEndFields', $untabbedFields);
|
|
|
|
return $untabbedFields;
|
|
}
|
|
|
|
/**
|
|
* Gets the value of a field.
|
|
* Called by {@link __get()} and any getFieldName() methods you might create.
|
|
*
|
|
* @param string $field The name of the field
|
|
*
|
|
* @return mixed The field value
|
|
*/
|
|
public function getField($field) {
|
|
// If we already have an object in $this->record, then we should just return that
|
|
if(isset($this->record[$field]) && is_object($this->record[$field])) return $this->record[$field];
|
|
|
|
// Do we have a field that needs to be lazy loaded?
|
|
if(isset($this->record[$field.'_Lazy'])) {
|
|
$tableClass = $this->record[$field.'_Lazy'];
|
|
$this->loadLazyFields($tableClass);
|
|
}
|
|
|
|
// Otherwise, we need to determine if this is a complex field
|
|
if(self::is_composite_field($this->class, $field)) {
|
|
$helper = $this->castingHelper($field);
|
|
$fieldObj = Object::create_from_string($helper, $field);
|
|
|
|
$compositeFields = $fieldObj->compositeDatabaseFields();
|
|
foreach ($compositeFields as $compositeName => $compositeType) {
|
|
if(isset($this->record[$field.$compositeName.'_Lazy'])) {
|
|
$tableClass = $this->record[$field.$compositeName.'_Lazy'];
|
|
$this->loadLazyFields($tableClass);
|
|
}
|
|
}
|
|
|
|
// write value only if either the field value exists,
|
|
// or a valid record has been loaded from the database
|
|
$value = (isset($this->record[$field])) ? $this->record[$field] : null;
|
|
if($value || $this->exists()) $fieldObj->setValue($value, $this->record, false);
|
|
|
|
$this->record[$field] = $fieldObj;
|
|
|
|
return $this->record[$field];
|
|
}
|
|
|
|
return isset($this->record[$field]) ? $this->record[$field] : null;
|
|
}
|
|
|
|
/**
|
|
* Loads all the stub fields that an initial lazy load didn't load fully.
|
|
*
|
|
* @param tableClass Base table to load the values from. Others are joined as required.
|
|
* Not specifying a tableClass will load all lazy fields from all tables.
|
|
*/
|
|
protected function loadLazyFields($tableClass = null) {
|
|
if (!$tableClass) {
|
|
$loaded = array();
|
|
|
|
foreach ($this->record as $key => $value) {
|
|
if (strlen($key) > 5 && substr($key, -5) == '_Lazy' && !array_key_exists($value, $loaded)) {
|
|
$this->loadLazyFields($value);
|
|
$loaded[$value] = $value;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
$dataQuery = new DataQuery($tableClass);
|
|
|
|
// Reset query parameter context to that of this DataObject
|
|
if($params = $this->getSourceQueryParams()) {
|
|
foreach($params as $key => $value) $dataQuery->setQueryParam($key, $value);
|
|
}
|
|
|
|
// TableField sets the record ID to "new" on new row data, so don't try doing anything in that case
|
|
if(!is_numeric($this->record['ID'])) return false;
|
|
|
|
// Limit query to the current record, unless it has the Versioned extension,
|
|
// in which case it requires special handling through augmentLoadLazyFields()
|
|
if(!$this->hasExtension('Versioned')) {
|
|
$dataQuery->where("\"$tableClass\".\"ID\" = {$this->record['ID']}")->limit(1);
|
|
}
|
|
|
|
$columns = array();
|
|
|
|
// Add SQL for fields, both simple & multi-value
|
|
// TODO: This is copy & pasted from buildSQL(), it could be moved into a method
|
|
$databaseFields = self::database_fields($tableClass, false);
|
|
if($databaseFields) foreach($databaseFields as $k => $v) {
|
|
if(!isset($this->record[$k]) || $this->record[$k] === null) {
|
|
$columns[] = $k;
|
|
}
|
|
}
|
|
|
|
if ($columns) {
|
|
$query = $dataQuery->query();
|
|
$this->extend('augmentLoadLazyFields', $query, $dataQuery, $this);
|
|
$this->extend('augmentSQL', $query, $dataQuery);
|
|
|
|
$dataQuery->setQueriedColumns($columns);
|
|
$newData = $dataQuery->execute()->record();
|
|
|
|
// Load the data into record
|
|
if($newData) {
|
|
foreach($newData as $k => $v) {
|
|
if (in_array($k, $columns)) {
|
|
$this->record[$k] = $v;
|
|
$this->original[$k] = $v;
|
|
unset($this->record[$k . '_Lazy']);
|
|
}
|
|
}
|
|
|
|
// No data means that the query returned nothing; assign 'null' to all the requested fields
|
|
} else {
|
|
foreach($columns as $k) {
|
|
$this->record[$k] = null;
|
|
$this->original[$k] = null;
|
|
unset($this->record[$k . '_Lazy']);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the fields that have changed.
|
|
*
|
|
* The change level affects what the functions defines as "changed":
|
|
* - Level CHANGE_STRICT (integer 1) will return strict changes, even !== ones.
|
|
* - Level CHANGE_VALUE (integer 2) is more lenient, it will only return real data changes,
|
|
* for example a change from 0 to null would not be included.
|
|
*
|
|
* Example return:
|
|
* <code>
|
|
* array(
|
|
* 'Title' = array('before' => 'Home', 'after' => 'Home-Changed', 'level' => DataObject::CHANGE_VALUE)
|
|
* )
|
|
* </code>
|
|
*
|
|
* @param boolean $databaseFieldsOnly Get only database fields that have changed
|
|
* @param int $changeLevel The strictness of what is defined as change. Defaults to strict
|
|
* @return array
|
|
*/
|
|
public function getChangedFields($databaseFieldsOnly = false, $changeLevel = self::CHANGE_STRICT) {
|
|
$changedFields = array();
|
|
|
|
// Update the changed array with references to changed obj-fields
|
|
foreach($this->record as $k => $v) {
|
|
if(is_object($v) && method_exists($v, 'isChanged') && $v->isChanged()) {
|
|
$this->changed[$k] = self::CHANGE_VALUE;
|
|
}
|
|
}
|
|
|
|
if($databaseFieldsOnly) {
|
|
$databaseFields = $this->inheritedDatabaseFields();
|
|
$databaseFields['ID'] = true;
|
|
$databaseFields['LastEdited'] = true;
|
|
$databaseFields['Created'] = true;
|
|
$databaseFields['ClassName'] = true;
|
|
$fields = array_intersect_key((array)$this->changed, $databaseFields);
|
|
} else {
|
|
$fields = $this->changed;
|
|
}
|
|
|
|
// Filter the list to those of a certain change level
|
|
if($changeLevel > self::CHANGE_STRICT) {
|
|
if($fields) foreach($fields as $name => $level) {
|
|
if($level < $changeLevel) {
|
|
unset($fields[$name]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if($fields) foreach($fields as $name => $level) {
|
|
$changedFields[$name] = array(
|
|
'before' => array_key_exists($name, $this->original) ? $this->original[$name] : null,
|
|
'after' => array_key_exists($name, $this->record) ? $this->record[$name] : null,
|
|
'level' => $level
|
|
);
|
|
}
|
|
|
|
return $changedFields;
|
|
}
|
|
|
|
/**
|
|
* Uses {@link getChangedFields()} to determine if fields have been changed
|
|
* since loading them from the database.
|
|
*
|
|
* @param string $fieldName Name of the database field to check, will check for any if not given
|
|
* @param int $changeLevel See {@link getChangedFields()}
|
|
* @return boolean
|
|
*/
|
|
public function isChanged($fieldName = null, $changeLevel = self::CHANGE_STRICT) {
|
|
$changed = $this->getChangedFields(false, $changeLevel);
|
|
if(!isset($fieldName)) {
|
|
return !empty($changed);
|
|
}
|
|
else {
|
|
return array_key_exists($fieldName, $changed);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the value of the field
|
|
* Called by {@link __set()} and any setFieldName() methods you might create.
|
|
*
|
|
* @param string $fieldName Name of the field
|
|
* @param mixed $val New field value
|
|
* @return DataObject $this
|
|
*/
|
|
public function setField($fieldName, $val) {
|
|
// Situation 1: Passing an DBField
|
|
if($val instanceof DBField) {
|
|
$val->Name = $fieldName;
|
|
|
|
// If we've just lazy-loaded the column, then we need to populate the $original array by
|
|
// called getField(). Too much overhead? Could this be done by a quicker method? Maybe only
|
|
// on a call to getChanged()?
|
|
$this->getField($fieldName);
|
|
|
|
$this->record[$fieldName] = $val;
|
|
// Situation 2: Passing a literal or non-DBField object
|
|
} else {
|
|
// If this is a proper database field, we shouldn't be getting non-DBField objects
|
|
if(is_object($val) && $this->db($fieldName)) {
|
|
user_error('DataObject::setField: passed an object that is not a DBField', E_USER_WARNING);
|
|
}
|
|
|
|
// if a field is not existing or has strictly changed
|
|
if(!isset($this->record[$fieldName]) || $this->record[$fieldName] !== $val) {
|
|
// TODO Add check for php-level defaults which are not set in the db
|
|
// TODO Add check for hidden input-fields (readonly) which are not set in the db
|
|
// At the very least, the type has changed
|
|
$this->changed[$fieldName] = self::CHANGE_STRICT;
|
|
|
|
if((!isset($this->record[$fieldName]) && $val) || (isset($this->record[$fieldName])
|
|
&& $this->record[$fieldName] != $val)) {
|
|
|
|
// Value has changed as well, not just the type
|
|
$this->changed[$fieldName] = self::CHANGE_VALUE;
|
|
}
|
|
|
|
// If we've just lazy-loaded the column, then we need to populate the $original array by
|
|
// called getField(). Too much overhead? Could this be done by a quicker method? Maybe only
|
|
// on a call to getChanged()?
|
|
$this->getField($fieldName);
|
|
|
|
// Value is always saved back when strict check succeeds.
|
|
$this->record[$fieldName] = $val;
|
|
}
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Set the value of the field, using a casting object.
|
|
* This is useful when you aren't sure that a date is in SQL format, for example.
|
|
* setCastedField() can also be used, by forms, to set related data. For example, uploaded images
|
|
* can be saved into the Image table.
|
|
*
|
|
* @param string $fieldName Name of the field
|
|
* @param mixed $value New field value
|
|
* @return DataObject $this
|
|
*/
|
|
public function setCastedField($fieldName, $val) {
|
|
if(!$fieldName) {
|
|
user_error("DataObject::setCastedField: Called without a fieldName", E_USER_ERROR);
|
|
}
|
|
$castingHelper = $this->castingHelper($fieldName);
|
|
if($castingHelper) {
|
|
$fieldObj = Object::create_from_string($castingHelper, $fieldName);
|
|
$fieldObj->setValue($val);
|
|
$fieldObj->saveInto($this);
|
|
} else {
|
|
$this->$fieldName = $val;
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given field exists in a database column on any of
|
|
* the objects tables and optionally look up a dynamic getter with
|
|
* get<fieldName>().
|
|
*
|
|
* @param string $field Name of the field
|
|
* @return boolean True if the given field exists
|
|
*/
|
|
public function hasField($field) {
|
|
return (
|
|
array_key_exists($field, $this->record)
|
|
|| $this->db($field)
|
|
|| (substr($field,-2) == 'ID') && $this->has_one(substr($field,0, -2))
|
|
|| $this->hasMethod("get{$field}")
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given field exists as a database column
|
|
*
|
|
* @param string $field Name of the field
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function hasDatabaseField($field) {
|
|
if(isset(self::$fixed_fields[$field])) return true;
|
|
|
|
return array_key_exists($field, $this->inheritedDatabaseFields());
|
|
}
|
|
|
|
/**
|
|
* Returns the field type of the given field, if it belongs to this class, and not a parent.
|
|
* Note that the field type will not include constructor arguments in round brackets, only the classname.
|
|
*
|
|
* @param string $field Name of the field
|
|
* @return string The field type of the given field
|
|
*/
|
|
public function hasOwnTableDatabaseField($field) {
|
|
return self::has_own_table_database_field($this->class, $field);
|
|
}
|
|
|
|
/**
|
|
* Returns the field type of the given field, if it belongs to this class, and not a parent.
|
|
* Note that the field type will not include constructor arguments in round brackets, only the classname.
|
|
*
|
|
* @param string $class Class name to check
|
|
* @param string $field Name of the field
|
|
* @return string The field type of the given field
|
|
*/
|
|
public static function has_own_table_database_field($class, $field) {
|
|
// Since database_fields omits 'ID'
|
|
if($field == "ID") return "Int";
|
|
|
|
$fieldMap = self::database_fields($class, false);
|
|
|
|
// Remove string-based "constructor-arguments" from the DBField definition
|
|
if(isset($fieldMap[$field])) {
|
|
$spec = $fieldMap[$field];
|
|
if(is_string($spec)) return strtok($spec,'(');
|
|
else return $spec['type'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if given class has its own table. Uses the rules for whether the table should exist rather than
|
|
* actually looking in the database.
|
|
*
|
|
* @param string $dataClass
|
|
* @return bool
|
|
*/
|
|
public static function has_own_table($dataClass) {
|
|
if(!is_subclass_of($dataClass,'DataObject')) return false;
|
|
|
|
if(!isset(DataObject::$cache_has_own_table[$dataClass])) {
|
|
if(get_parent_class($dataClass) == 'DataObject') {
|
|
DataObject::$cache_has_own_table[$dataClass] = true;
|
|
} else {
|
|
DataObject::$cache_has_own_table[$dataClass]
|
|
= Config::inst()->get($dataClass, 'db', Config::UNINHERITED)
|
|
|| Config::inst()->get($dataClass, 'has_one', Config::UNINHERITED);
|
|
}
|
|
}
|
|
return DataObject::$cache_has_own_table[$dataClass];
|
|
}
|
|
|
|
/**
|
|
* Returns true if the member is allowed to do the given action.
|
|
* See {@link extendedCan()} for a more versatile tri-state permission control.
|
|
*
|
|
* @param string $perm The permission to be checked, such as 'View'.
|
|
* @param Member $member The member whose permissions need checking. Defaults to the currently logged
|
|
* in user.
|
|
*
|
|
* @return boolean True if the the member is allowed to do the given action
|
|
*/
|
|
public function can($perm, $member = null) {
|
|
if(!isset($member)) {
|
|
$member = Member::currentUser();
|
|
}
|
|
if(Permission::checkMember($member, "ADMIN")) return true;
|
|
|
|
if($this->many_many('Can' . $perm)) {
|
|
if($this->ParentID && $this->SecurityType == 'Inherit') {
|
|
if(!($p = $this->Parent)) {
|
|
return false;
|
|
}
|
|
return $this->Parent->can($perm, $member);
|
|
|
|
} else {
|
|
$permissionCache = $this->uninherited('permissionCache');
|
|
$memberID = $member ? $member->ID : 'none';
|
|
|
|
if(!isset($permissionCache[$memberID][$perm])) {
|
|
if($member->ID) {
|
|
$groups = $member->Groups();
|
|
}
|
|
|
|
$groupList = implode(', ', $groups->column("ID"));
|
|
|
|
// TODO Fix relation table hardcoding
|
|
$query = new SQLSelect(
|
|
"\"Page_Can$perm\".PageID",
|
|
array("\"Page_Can$perm\""),
|
|
"GroupID IN ($groupList)");
|
|
|
|
$permissionCache[$memberID][$perm] = $query->execute()->column();
|
|
|
|
if($perm == "View") {
|
|
// TODO Fix relation table hardcoding
|
|
$query = new SQLSelect("\"SiteTree\".\"ID\"", array(
|
|
"\"SiteTree\"",
|
|
"LEFT JOIN \"Page_CanView\" ON \"Page_CanView\".\"PageID\" = \"SiteTree\".\"ID\""
|
|
), "\"Page_CanView\".\"PageID\" IS NULL");
|
|
|
|
$unsecuredPages = $query->execute()->column();
|
|
if($permissionCache[$memberID][$perm]) {
|
|
$permissionCache[$memberID][$perm]
|
|
= array_merge($permissionCache[$memberID][$perm], $unsecuredPages);
|
|
} else {
|
|
$permissionCache[$memberID][$perm] = $unsecuredPages;
|
|
}
|
|
}
|
|
|
|
Config::inst()->update($this->class, 'permissionCache', $permissionCache);
|
|
}
|
|
|
|
if($permissionCache[$memberID][$perm]) {
|
|
return in_array($this->ID, $permissionCache[$memberID][$perm]);
|
|
}
|
|
}
|
|
} else {
|
|
return parent::can($perm, $member);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process tri-state responses from permission-alterting extensions. The extensions are
|
|
* expected to return one of three values:
|
|
*
|
|
* - false: Disallow this permission, regardless of what other extensions say
|
|
* - true: Allow this permission, as long as no other extensions return false
|
|
* - NULL: Don't affect the outcome
|
|
*
|
|
* This method itself returns a tri-state value, and is designed to be used like this:
|
|
*
|
|
* <code>
|
|
* $extended = $this->extendedCan('canDoSomething', $member);
|
|
* if($extended !== null) return $extended;
|
|
* else return $normalValue;
|
|
* </code>
|
|
*
|
|
* @param String $methodName Method on the same object, e.g. {@link canEdit()}
|
|
* @param Member|int $member
|
|
* @return boolean|null
|
|
*/
|
|
public function extendedCan($methodName, $member) {
|
|
$results = $this->extend($methodName, $member);
|
|
if($results && is_array($results)) {
|
|
// Remove NULLs
|
|
$results = array_filter($results, function($v) {return !is_null($v);});
|
|
// If there are any non-NULL responses, then return the lowest one of them.
|
|
// If any explicitly deny the permission, then we don't get access
|
|
if($results) return min($results);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canView($member = null) {
|
|
$extended = $this->extendedCan(__FUNCTION__, $member);
|
|
if($extended !== null) {
|
|
return $extended;
|
|
}
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canEdit($member = null) {
|
|
$extended = $this->extendedCan(__FUNCTION__, $member);
|
|
if($extended !== null) {
|
|
return $extended;
|
|
}
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canDelete($member = null) {
|
|
$extended = $this->extendedCan(__FUNCTION__, $member);
|
|
if($extended !== null) {
|
|
return $extended;
|
|
}
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* @todo Should canCreate be a static method?
|
|
*
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canCreate($member = null) {
|
|
$extended = $this->extendedCan(__FUNCTION__, $member);
|
|
if($extended !== null) {
|
|
return $extended;
|
|
}
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* Debugging used by Debug::show()
|
|
*
|
|
* @return string HTML data representing this object
|
|
*/
|
|
public function debug() {
|
|
$val = "<h3>Database record: $this->class</h3>\n<ul>\n";
|
|
if($this->record) foreach($this->record as $fieldName => $fieldVal) {
|
|
$val .= "\t<li>$fieldName: " . Debug::text($fieldVal) . "</li>\n";
|
|
}
|
|
$val .= "</ul>\n";
|
|
return $val;
|
|
}
|
|
|
|
/**
|
|
* Return the DBField object that represents the given field.
|
|
* This works similarly to obj() with 2 key differences:
|
|
* - it still returns an object even when the field has no value.
|
|
* - it only matches fields and not methods
|
|
* - it matches foreign keys generated by has_one relationships, eg, "ParentID"
|
|
*
|
|
* @param string $fieldName Name of the field
|
|
* @return DBField The field as a DBField object
|
|
*/
|
|
public function dbObject($fieldName) {
|
|
// If we have a CompositeDBField object in $this->record, then return that
|
|
if(isset($this->record[$fieldName]) && is_object($this->record[$fieldName])) {
|
|
return $this->record[$fieldName];
|
|
|
|
// Special case for ID field
|
|
} else if($fieldName == 'ID') {
|
|
return new PrimaryKey($fieldName, $this);
|
|
|
|
// Special case for ClassName
|
|
} else if($fieldName == 'ClassName') {
|
|
$val = get_class($this);
|
|
return DBField::create_field('Varchar', $val, $fieldName);
|
|
|
|
} else if(array_key_exists($fieldName, self::$fixed_fields)) {
|
|
return DBField::create_field(self::$fixed_fields[$fieldName], $this->$fieldName, $fieldName);
|
|
|
|
// General casting information for items in $db
|
|
} else if($helper = $this->db($fieldName)) {
|
|
$obj = Object::create_from_string($helper, $fieldName);
|
|
$obj->setValue($this->$fieldName, $this->record, false);
|
|
return $obj;
|
|
|
|
// Special case for has_one relationships
|
|
} else if(preg_match('/ID$/', $fieldName) && $this->has_one(substr($fieldName,0,-2))) {
|
|
$val = $this->$fieldName;
|
|
return DBField::create_field('ForeignKey', $val, $fieldName, $this);
|
|
|
|
// has_one for polymorphic relations do not end in ID
|
|
} else if(($type = $this->has_one($fieldName)) && ($type === 'DataObject')) {
|
|
$val = $this->$fieldName();
|
|
return DBField::create_field('PolymorphicForeignKey', $val, $fieldName, $this);
|
|
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Traverses to a DBField referenced by relationships between data objects.
|
|
*
|
|
* The path to the related field is specified with dot separated syntax
|
|
* (eg: Parent.Child.Child.FieldName).
|
|
*
|
|
* @param string $fieldPath
|
|
*
|
|
* @return mixed DBField of the field on the object or a DataList instance.
|
|
*/
|
|
public function relObject($fieldPath) {
|
|
$object = null;
|
|
|
|
if(strpos($fieldPath, '.') !== false) {
|
|
$parts = explode('.', $fieldPath);
|
|
$fieldName = array_pop($parts);
|
|
|
|
// Traverse dot syntax
|
|
$component = $this;
|
|
|
|
foreach($parts as $relation) {
|
|
if($component instanceof SS_List) {
|
|
if(method_exists($component,$relation)) {
|
|
$component = $component->$relation();
|
|
} else {
|
|
$component = $component->relation($relation);
|
|
}
|
|
} else {
|
|
$component = $component->$relation();
|
|
}
|
|
}
|
|
|
|
$object = $component->dbObject($fieldName);
|
|
|
|
} else {
|
|
$object = $this->dbObject($fieldPath);
|
|
}
|
|
|
|
return $object;
|
|
}
|
|
|
|
/**
|
|
* Traverses to a field referenced by relationships between data objects, returning the value
|
|
* The path to the related field is specified with dot separated syntax (eg: Parent.Child.Child.FieldName)
|
|
*
|
|
* @param $fieldPath string
|
|
* @return string | null - will return null on a missing value
|
|
*/
|
|
public function relField($fieldName) {
|
|
$component = $this;
|
|
|
|
// We're dealing with relations here so we traverse the dot syntax
|
|
if(strpos($fieldName, '.') !== false) {
|
|
$relations = explode('.', $fieldName);
|
|
$fieldName = array_pop($relations);
|
|
foreach($relations as $relation) {
|
|
// Inspect $component for element $relation
|
|
if($component->hasMethod($relation)) {
|
|
// Check nested method
|
|
$component = $component->$relation();
|
|
} elseif($component instanceof SS_List) {
|
|
// Select adjacent relation from DataList
|
|
$component = $component->relation($relation);
|
|
} elseif($component instanceof DataObject
|
|
&& ($dbObject = $component->dbObject($relation))
|
|
) {
|
|
// Select db object
|
|
$component = $dbObject;
|
|
} else {
|
|
user_error("$relation is not a relation/field on ".get_class($component), E_USER_ERROR);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Bail if the component is null
|
|
if(!$component) {
|
|
return null;
|
|
}
|
|
if($component->hasMethod($fieldName)) {
|
|
return $component->$fieldName();
|
|
}
|
|
return $component->$fieldName;
|
|
}
|
|
|
|
/**
|
|
* Temporary hack to return an association name, based on class, to get around the mangle
|
|
* of having to deal with reverse lookup of relationships to determine autogenerated foreign keys.
|
|
*
|
|
* @return String
|
|
*/
|
|
public function getReverseAssociation($className) {
|
|
if (is_array($this->many_many())) {
|
|
$many_many = array_flip($this->many_many());
|
|
if (array_key_exists($className, $many_many)) return $many_many[$className];
|
|
}
|
|
if (is_array($this->has_many())) {
|
|
$has_many = array_flip($this->has_many());
|
|
if (array_key_exists($className, $has_many)) return $has_many[$className];
|
|
}
|
|
if (is_array($this->has_one())) {
|
|
$has_one = array_flip($this->has_one());
|
|
if (array_key_exists($className, $has_one)) return $has_one[$className];
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Return all objects matching the filter
|
|
* sub-classes are automatically selected and included
|
|
*
|
|
* @param string $callerClass The class of objects to be returned
|
|
* @param string|array $filter A filter to be inserted into the WHERE clause.
|
|
* Supports parameterised queries. See SQLSelect::addWhere() for syntax examples.
|
|
* @param string|array $sort A sort expression to be inserted into the ORDER
|
|
* BY clause. If omitted, self::$default_sort will be used.
|
|
* @param string $join Deprecated 3.0 Join clause. Use leftJoin($table, $joinClause) instead.
|
|
* @param string|array $limit A limit expression to be inserted into the LIMIT clause.
|
|
* @param string $containerClass The container class to return the results in.
|
|
*
|
|
* @todo $containerClass is Ignored, why?
|
|
*
|
|
* @return DataList The objects matching the filter, in the class specified by $containerClass
|
|
*/
|
|
public static function get($callerClass = null, $filter = "", $sort = "", $join = "", $limit = null,
|
|
$containerClass = 'DataList') {
|
|
|
|
if($callerClass == null) {
|
|
$callerClass = get_called_class();
|
|
if($callerClass == 'DataObject') {
|
|
throw new \InvalidArgumentException('Call <classname>::get() instead of DataObject::get()');
|
|
}
|
|
|
|
if($filter || $sort || $join || $limit || ($containerClass != 'DataList')) {
|
|
throw new \InvalidArgumentException('If calling <classname>::get() then you shouldn\'t pass any other'
|
|
. ' arguments');
|
|
}
|
|
|
|
$result = DataList::create(get_called_class());
|
|
$result->setDataModel(DataModel::inst());
|
|
return $result;
|
|
}
|
|
|
|
if($join) {
|
|
throw new \InvalidArgumentException(
|
|
'The $join argument has been removed. Use leftJoin($table, $joinClause) instead.'
|
|
);
|
|
}
|
|
|
|
$result = DataList::create($callerClass)->where($filter)->sort($sort);
|
|
|
|
if($limit && strpos($limit, ',') !== false) {
|
|
$limitArguments = explode(',', $limit);
|
|
$result = $result->limit($limitArguments[1],$limitArguments[0]);
|
|
} elseif($limit) {
|
|
$result = $result->limit($limit);
|
|
}
|
|
|
|
$result->setDataModel(DataModel::inst());
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* @deprecated 3.1 Use DataList::create and DataList to do your querying
|
|
*/
|
|
public function Aggregate($class = null) {
|
|
Deprecation::notice('3.1', 'Call aggregate methods on a DataList directly instead. In templates'
|
|
. ' an example of the new syntax is <% cached List(Member).max(LastEdited) %> instead'
|
|
. ' (check partial-caching.md documentation for more details.)');
|
|
|
|
if($class) {
|
|
$list = new DataList($class);
|
|
$list->setDataModel(DataModel::inst());
|
|
} else if(isset($this)) {
|
|
$list = new DataList(get_class($this));
|
|
$list->setDataModel($this->model);
|
|
} else {
|
|
throw new \InvalidArgumentException("DataObject::aggregate() must be called as an instance method or passed"
|
|
. " a classname");
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* @deprecated 3.1 Use DataList::create and DataList to do your querying
|
|
*/
|
|
public function RelationshipAggregate($relationship) {
|
|
Deprecation::notice('3.1', 'Call aggregate methods on a relationship directly instead.');
|
|
|
|
return $this->$relationship();
|
|
}
|
|
|
|
/**
|
|
* Return the first item matching the given query.
|
|
* All calls to get_one() are cached.
|
|
*
|
|
* @param string $callerClass The class of objects to be returned
|
|
* @param string|array $filter A filter to be inserted into the WHERE clause.
|
|
* Supports parameterised queries. See SQLSelect::addWhere() for syntax examples.
|
|
* @param boolean $cache Use caching
|
|
* @param string $orderby A sort expression to be inserted into the ORDER BY clause.
|
|
*
|
|
* @return DataObject The first item matching the query
|
|
*/
|
|
public static function get_one($callerClass, $filter = "", $cache = true, $orderby = "") {
|
|
$SNG = singleton($callerClass);
|
|
|
|
$cacheComponents = array($filter, $orderby, $SNG->extend('cacheKeyComponent'));
|
|
$cacheKey = md5(var_export($cacheComponents, true));
|
|
|
|
// Flush destroyed items out of the cache
|
|
if($cache && isset(DataObject::$_cache_get_one[$callerClass][$cacheKey])
|
|
&& DataObject::$_cache_get_one[$callerClass][$cacheKey] instanceof DataObject
|
|
&& DataObject::$_cache_get_one[$callerClass][$cacheKey]->destroyed) {
|
|
|
|
DataObject::$_cache_get_one[$callerClass][$cacheKey] = false;
|
|
}
|
|
if(!$cache || !isset(DataObject::$_cache_get_one[$callerClass][$cacheKey])) {
|
|
$dl = DataObject::get($callerClass)->where($filter)->sort($orderby);
|
|
$item = $dl->First();
|
|
|
|
if($cache) {
|
|
DataObject::$_cache_get_one[$callerClass][$cacheKey] = $item;
|
|
if(!DataObject::$_cache_get_one[$callerClass][$cacheKey]) {
|
|
DataObject::$_cache_get_one[$callerClass][$cacheKey] = false;
|
|
}
|
|
}
|
|
}
|
|
return $cache ? DataObject::$_cache_get_one[$callerClass][$cacheKey] : $item;
|
|
}
|
|
|
|
/**
|
|
* Flush the cached results for all relations (has_one, has_many, many_many)
|
|
* Also clears any cached aggregate data.
|
|
*
|
|
* @param boolean $persistent When true will also clear persistent data stored in the Cache system.
|
|
* When false will just clear session-local cached data
|
|
* @return DataObject $this
|
|
*/
|
|
public function flushCache($persistent = true) {
|
|
if($persistent) Aggregate::flushCache($this->class);
|
|
|
|
if($this->class == 'DataObject') {
|
|
DataObject::$_cache_get_one = array();
|
|
return $this;
|
|
}
|
|
|
|
$classes = ClassInfo::ancestry($this->class);
|
|
foreach($classes as $class) {
|
|
if(isset(DataObject::$_cache_get_one[$class])) unset(DataObject::$_cache_get_one[$class]);
|
|
}
|
|
|
|
$this->extend('flushCache');
|
|
|
|
$this->components = array();
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Flush the get_one global cache and destroy associated objects.
|
|
*/
|
|
public static function flush_and_destroy_cache() {
|
|
if(DataObject::$_cache_get_one) foreach(DataObject::$_cache_get_one as $class => $items) {
|
|
if(is_array($items)) foreach($items as $item) {
|
|
if($item) $item->destroy();
|
|
}
|
|
}
|
|
DataObject::$_cache_get_one = array();
|
|
}
|
|
|
|
/**
|
|
* Reset all global caches associated with DataObject.
|
|
*/
|
|
public static function reset() {
|
|
self::clear_classname_spec_cache();
|
|
DataObject::$cache_has_own_table = array();
|
|
DataObject::$_cache_db = array();
|
|
DataObject::$_cache_get_one = array();
|
|
DataObject::$_cache_composite_fields = array();
|
|
DataObject::$_cache_custom_database_fields = array();
|
|
DataObject::$_cache_get_class_ancestry = array();
|
|
DataObject::$_cache_field_labels = array();
|
|
}
|
|
|
|
/**
|
|
* Return the given element, searching by ID
|
|
*
|
|
* @param string $callerClass The class of the object to be returned
|
|
* @param int $id The id of the element
|
|
* @param boolean $cache See {@link get_one()}
|
|
*
|
|
* @return DataObject The element
|
|
*/
|
|
public static function get_by_id($callerClass, $id, $cache = true) {
|
|
if(!is_numeric($id)) {
|
|
user_error("DataObject::get_by_id passed a non-numeric ID #$id", E_USER_WARNING);
|
|
}
|
|
|
|
// Check filter column
|
|
if(is_subclass_of($callerClass, 'DataObject')) {
|
|
$baseClass = ClassInfo::baseDataClass($callerClass);
|
|
$column = "\"$baseClass\".\"ID\"";
|
|
} else{
|
|
// This simpler code will be used by non-DataObject classes that implement DataObjectInterface
|
|
$column = '"ID"';
|
|
}
|
|
|
|
// Relegate to get_one
|
|
return DataObject::get_one($callerClass, array($column => $id), $cache);
|
|
}
|
|
|
|
/**
|
|
* Get the name of the base table for this object
|
|
*/
|
|
public function baseTable() {
|
|
$tableClasses = ClassInfo::dataClassesFor($this->class);
|
|
return array_shift($tableClasses);
|
|
}
|
|
|
|
/**
|
|
* @var Array Parameters used in the query that built this object.
|
|
* This can be used by decorators (e.g. lazy loading) to
|
|
* run additional queries using the same context.
|
|
*/
|
|
protected $sourceQueryParams;
|
|
|
|
/**
|
|
* @see $sourceQueryParams
|
|
* @return array
|
|
*/
|
|
public function getSourceQueryParams() {
|
|
return $this->sourceQueryParams;
|
|
}
|
|
|
|
/**
|
|
* @see $sourceQueryParams
|
|
* @param array
|
|
*/
|
|
public function setSourceQueryParams($array) {
|
|
$this->sourceQueryParams = $array;
|
|
}
|
|
|
|
/**
|
|
* @see $sourceQueryParams
|
|
* @param array
|
|
*/
|
|
public function setSourceQueryParam($key, $value) {
|
|
$this->sourceQueryParams[$key] = $value;
|
|
}
|
|
|
|
/**
|
|
* @see $sourceQueryParams
|
|
* @return Mixed
|
|
*/
|
|
public function getSourceQueryParam($key) {
|
|
if(isset($this->sourceQueryParams[$key])) return $this->sourceQueryParams[$key];
|
|
else return null;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------//
|
|
|
|
/**
|
|
* Return the database indexes on this table.
|
|
* This array is indexed by the name of the field with the index, and
|
|
* the value is the type of index.
|
|
*/
|
|
public function databaseIndexes() {
|
|
$has_one = $this->uninherited('has_one',true);
|
|
$classIndexes = $this->uninherited('indexes',true);
|
|
//$fileIndexes = $this->uninherited('fileIndexes', true);
|
|
|
|
$indexes = array();
|
|
|
|
if($has_one) {
|
|
foreach($has_one as $relationshipName => $fieldType) {
|
|
$indexes[$relationshipName . 'ID'] = true;
|
|
}
|
|
}
|
|
|
|
if($classIndexes) {
|
|
foreach($classIndexes as $indexName => $indexType) {
|
|
$indexes[$indexName] = $indexType;
|
|
}
|
|
}
|
|
|
|
if(get_parent_class($this) == "DataObject") {
|
|
$indexes['ClassName'] = true;
|
|
}
|
|
|
|
return $indexes;
|
|
}
|
|
|
|
/**
|
|
* Check the database schema and update it as necessary.
|
|
*
|
|
* @uses DataExtension->augmentDatabase()
|
|
*/
|
|
public function requireTable() {
|
|
// Only build the table if we've actually got fields
|
|
$fields = self::database_fields($this->class);
|
|
$extensions = self::database_extensions($this->class);
|
|
|
|
$indexes = $this->databaseIndexes();
|
|
|
|
if($fields) {
|
|
$hasAutoIncPK = ($this->class == ClassInfo::baseDataClass($this->class));
|
|
DB::require_table($this->class, $fields, $indexes, $hasAutoIncPK, $this->stat('create_table_options'),
|
|
$extensions);
|
|
} else {
|
|
DB::dont_require_table($this->class);
|
|
}
|
|
|
|
// Build any child tables for many_many items
|
|
if($manyMany = $this->uninherited('many_many', true)) {
|
|
$extras = $this->uninherited('many_many_extraFields', true);
|
|
foreach($manyMany as $relationship => $childClass) {
|
|
// Build field list
|
|
$manymanyFields = array(
|
|
"{$this->class}ID" => "Int",
|
|
(($this->class == $childClass) ? "ChildID" : "{$childClass}ID") => "Int",
|
|
);
|
|
if(isset($extras[$relationship])) {
|
|
$manymanyFields = array_merge($manymanyFields, $extras[$relationship]);
|
|
}
|
|
|
|
// Build index list
|
|
$manymanyIndexes = array(
|
|
"{$this->class}ID" => true,
|
|
(($this->class == $childClass) ? "ChildID" : "{$childClass}ID") => true,
|
|
);
|
|
|
|
DB::require_table("{$this->class}_$relationship", $manymanyFields, $manymanyIndexes, true, null,
|
|
$extensions);
|
|
}
|
|
}
|
|
|
|
// Let any extentions make their own database fields
|
|
$this->extend('augmentDatabase', $dummy);
|
|
}
|
|
|
|
/**
|
|
* Add default records to database. This function is called whenever the
|
|
* database is built, after the database tables have all been created. Overload
|
|
* this to add default records when the database is built, but make sure you
|
|
* call parent::requireDefaultRecords().
|
|
*
|
|
* @uses DataExtension->requireDefaultRecords()
|
|
*/
|
|
public function requireDefaultRecords() {
|
|
$defaultRecords = $this->stat('default_records');
|
|
|
|
if(!empty($defaultRecords)) {
|
|
$hasData = DataObject::get_one($this->class);
|
|
if(!$hasData) {
|
|
$className = $this->class;
|
|
foreach($defaultRecords as $record) {
|
|
$obj = $this->model->$className->newObject($record);
|
|
$obj->write();
|
|
}
|
|
DB::alteration_message("Added default records to $className table","created");
|
|
}
|
|
}
|
|
|
|
// Let any extentions make their own database default data
|
|
$this->extend('requireDefaultRecords', $dummy);
|
|
}
|
|
|
|
/**
|
|
* Returns fields bu traversing the class heirachy in a bottom-up direction.
|
|
*
|
|
* Needed to avoid getCMSFields being empty when customDatabaseFields overlooks
|
|
* the inheritance chain of the $db array, where a child data object has no $db array,
|
|
* but still needs to know the properties of its parent. This should be merged into databaseFields or
|
|
* customDatabaseFields.
|
|
*
|
|
* @todo review whether this is still needed after recent API changes
|
|
*/
|
|
public function inheritedDatabaseFields() {
|
|
$fields = array();
|
|
$currentObj = $this->class;
|
|
|
|
while($currentObj != 'DataObject') {
|
|
$fields = array_merge($fields, self::custom_database_fields($currentObj));
|
|
$currentObj = get_parent_class($currentObj);
|
|
}
|
|
|
|
return (array) $fields;
|
|
}
|
|
|
|
/**
|
|
* Get the default searchable fields for this object, as defined in the
|
|
* $searchable_fields list. If searchable fields are not defined on the
|
|
* data object, uses a default selection of summary fields.
|
|
*
|
|
* @return array
|
|
*/
|
|
public function searchableFields() {
|
|
// can have mixed format, need to make consistent in most verbose form
|
|
$fields = $this->stat('searchable_fields');
|
|
$labels = $this->fieldLabels();
|
|
|
|
// fallback to summary fields (unless empty array is explicitly specified)
|
|
if( ! $fields && ! is_array($fields)) {
|
|
$summaryFields = array_keys($this->summaryFields());
|
|
$fields = array();
|
|
|
|
// remove the custom getters as the search should not include them
|
|
if($summaryFields) {
|
|
foreach($summaryFields as $key => $name) {
|
|
$spec = $name;
|
|
|
|
// Extract field name in case this is a method called on a field (e.g. "Date.Nice")
|
|
if(($fieldPos = strpos($name, '.')) !== false) {
|
|
$name = substr($name, 0, $fieldPos);
|
|
}
|
|
|
|
if($this->hasDatabaseField($name)) {
|
|
$fields[] = $name;
|
|
} elseif($this->relObject($spec)) {
|
|
$fields[] = $spec;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// we need to make sure the format is unified before
|
|
// augmenting fields, so extensions can apply consistent checks
|
|
// but also after augmenting fields, because the extension
|
|
// might use the shorthand notation as well
|
|
|
|
// rewrite array, if it is using shorthand syntax
|
|
$rewrite = array();
|
|
foreach($fields as $name => $specOrName) {
|
|
$identifer = (is_int($name)) ? $specOrName : $name;
|
|
|
|
if(is_int($name)) {
|
|
// Format: array('MyFieldName')
|
|
$rewrite[$identifer] = array();
|
|
} elseif(is_array($specOrName)) {
|
|
// Format: array('MyFieldName' => array(
|
|
// 'filter => 'ExactMatchFilter',
|
|
// 'field' => 'NumericField', // optional
|
|
// 'title' => 'My Title', // optiona.
|
|
// ))
|
|
$rewrite[$identifer] = array_merge(
|
|
array('filter' => $this->relObject($identifer)->stat('default_search_filter_class')),
|
|
(array)$specOrName
|
|
);
|
|
} else {
|
|
// Format: array('MyFieldName' => 'ExactMatchFilter')
|
|
$rewrite[$identifer] = array(
|
|
'filter' => $specOrName,
|
|
);
|
|
}
|
|
if(!isset($rewrite[$identifer]['title'])) {
|
|
$rewrite[$identifer]['title'] = (isset($labels[$identifer]))
|
|
? $labels[$identifer] : FormField::name_to_label($identifer);
|
|
}
|
|
if(!isset($rewrite[$identifer]['filter'])) {
|
|
$rewrite[$identifer]['filter'] = 'PartialMatchFilter';
|
|
}
|
|
}
|
|
|
|
$fields = $rewrite;
|
|
|
|
// apply DataExtensions if present
|
|
$this->extend('updateSearchableFields', $fields);
|
|
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* Get any user defined searchable fields labels that
|
|
* exist. Allows overriding of default field names in the form
|
|
* interface actually presented to the user.
|
|
*
|
|
* The reason for keeping this separate from searchable_fields,
|
|
* which would be a logical place for this functionality, is to
|
|
* avoid bloating and complicating the configuration array. Currently
|
|
* much of this system is based on sensible defaults, and this property
|
|
* would generally only be set in the case of more complex relationships
|
|
* between data object being required in the search interface.
|
|
*
|
|
* Generates labels based on name of the field itself, if no static property
|
|
* {@link self::field_labels} exists.
|
|
*
|
|
* @uses $field_labels
|
|
* @uses FormField::name_to_label()
|
|
*
|
|
* @param boolean $includerelations a boolean value to indicate if the labels returned include relation fields
|
|
*
|
|
* @return array|string Array of all element labels if no argument given, otherwise the label of the field
|
|
*/
|
|
public function fieldLabels($includerelations = true) {
|
|
$cacheKey = $this->class . '_' . $includerelations;
|
|
|
|
if(!isset(self::$_cache_field_labels[$cacheKey])) {
|
|
$customLabels = $this->stat('field_labels');
|
|
$autoLabels = array();
|
|
|
|
// get all translated static properties as defined in i18nCollectStatics()
|
|
$ancestry = ClassInfo::ancestry($this->class);
|
|
$ancestry = array_reverse($ancestry);
|
|
if($ancestry) foreach($ancestry as $ancestorClass) {
|
|
if($ancestorClass == 'ViewableData') break;
|
|
$types = array(
|
|
'db' => (array)Config::inst()->get($ancestorClass, 'db', Config::UNINHERITED)
|
|
);
|
|
if($includerelations){
|
|
$types['has_one'] = (array)singleton($ancestorClass)->uninherited('has_one', true);
|
|
$types['has_many'] = (array)singleton($ancestorClass)->uninherited('has_many', true);
|
|
$types['many_many'] = (array)singleton($ancestorClass)->uninherited('many_many', true);
|
|
}
|
|
foreach($types as $type => $attrs) {
|
|
foreach($attrs as $name => $spec) {
|
|
$autoLabels[$name] = _t("{$ancestorClass}.{$type}_{$name}",FormField::name_to_label($name));
|
|
}
|
|
}
|
|
}
|
|
|
|
$labels = array_merge((array)$autoLabels, (array)$customLabels);
|
|
$this->extend('updateFieldLabels', $labels);
|
|
self::$_cache_field_labels[$cacheKey] = $labels;
|
|
}
|
|
|
|
return self::$_cache_field_labels[$cacheKey];
|
|
}
|
|
|
|
/**
|
|
* Get a human-readable label for a single field,
|
|
* see {@link fieldLabels()} for more details.
|
|
*
|
|
* @uses fieldLabels()
|
|
* @uses FormField::name_to_label()
|
|
*
|
|
* @param string $name Name of the field
|
|
* @return string Label of the field
|
|
*/
|
|
public function fieldLabel($name) {
|
|
$labels = $this->fieldLabels();
|
|
return (isset($labels[$name])) ? $labels[$name] : FormField::name_to_label($name);
|
|
}
|
|
|
|
/**
|
|
* Get the default summary fields for this object.
|
|
*
|
|
* @todo use the translation apparatus to return a default field selection for the language
|
|
*
|
|
* @return array
|
|
*/
|
|
public function summaryFields(){
|
|
$fields = $this->stat('summary_fields');
|
|
|
|
// if fields were passed in numeric array,
|
|
// convert to an associative array
|
|
if($fields && array_key_exists(0, $fields)) {
|
|
$fields = array_combine(array_values($fields), array_values($fields));
|
|
}
|
|
|
|
if (!$fields) {
|
|
$fields = array();
|
|
// try to scaffold a couple of usual suspects
|
|
if ($this->hasField('Name')) $fields['Name'] = 'Name';
|
|
if ($this->hasDataBaseField('Title')) $fields['Title'] = 'Title';
|
|
if ($this->hasField('Description')) $fields['Description'] = 'Description';
|
|
if ($this->hasField('FirstName')) $fields['FirstName'] = 'First Name';
|
|
}
|
|
$this->extend("updateSummaryFields", $fields);
|
|
|
|
// Final fail-over, just list ID field
|
|
if(!$fields) $fields['ID'] = 'ID';
|
|
|
|
// Localize fields (if possible)
|
|
foreach($this->fieldLabels(false) as $name => $label) {
|
|
if(isset($fields[$name])) $fields[$name] = $label;
|
|
}
|
|
|
|
return $fields;
|
|
}
|
|
|
|
/**
|
|
* Defines a default list of filters for the search context.
|
|
*
|
|
* If a filter class mapping is defined on the data object,
|
|
* it is constructed here. Otherwise, the default filter specified in
|
|
* {@link DBField} is used.
|
|
*
|
|
* @todo error handling/type checking for valid FormField and SearchFilter subclasses?
|
|
*
|
|
* @return array
|
|
*/
|
|
public function defaultSearchFilters() {
|
|
$filters = array();
|
|
|
|
foreach($this->searchableFields() as $name => $spec) {
|
|
$filterClass = $spec['filter'];
|
|
|
|
if($spec['filter'] instanceof SearchFilter) {
|
|
$filters[$name] = $spec['filter'];
|
|
} else {
|
|
$class = $spec['filter'];
|
|
|
|
if(!is_subclass_of($spec['filter'], 'SearchFilter')) {
|
|
$class = 'PartialMatchFilter';
|
|
}
|
|
|
|
$filters[$name] = new $class($name);
|
|
}
|
|
}
|
|
|
|
return $filters;
|
|
}
|
|
|
|
/**
|
|
* @return boolean True if the object is in the database
|
|
*/
|
|
public function isInDB() {
|
|
return is_numeric( $this->ID ) && $this->ID > 0;
|
|
}
|
|
|
|
/*
|
|
* @ignore
|
|
*/
|
|
private static $subclass_access = true;
|
|
|
|
/**
|
|
* Temporarily disable subclass access in data object qeur
|
|
*/
|
|
public static function disable_subclass_access() {
|
|
self::$subclass_access = false;
|
|
}
|
|
public static function enable_subclass_access() {
|
|
self::$subclass_access = true;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------//
|
|
|
|
/**
|
|
* Database field definitions.
|
|
* This is a map from field names to field type. The field
|
|
* type should be a class that extends .
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $db = null;
|
|
|
|
/**
|
|
* Use a casting object for a field. This is a map from
|
|
* field name to class name of the casting object.
|
|
* @var array
|
|
*/
|
|
private static $casting = array(
|
|
"LastEdited" => "SS_Datetime",
|
|
"Created" => "SS_Datetime",
|
|
"Title" => 'Text',
|
|
);
|
|
|
|
/**
|
|
* Specify custom options for a CREATE TABLE call.
|
|
* Can be used to specify a custom storage engine for specific database table.
|
|
* All options have to be keyed for a specific database implementation,
|
|
* identified by their class name (extending from {@link SS_Database}).
|
|
*
|
|
* <code>
|
|
* array(
|
|
* 'MySQLDatabase' => 'ENGINE=MyISAM'
|
|
* )
|
|
* </code>
|
|
*
|
|
* Caution: This API is experimental, and might not be
|
|
* included in the next major release. Please use with care.
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $create_table_options = array(
|
|
'MySQLDatabase' => 'ENGINE=InnoDB'
|
|
);
|
|
|
|
/**
|
|
* If a field is in this array, then create a database index
|
|
* on that field. This is a map from fieldname to index type.
|
|
* See {@link SS_Database->requireIndex()} and custom subclasses for details on the array notation.
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $indexes = null;
|
|
|
|
/**
|
|
* Inserts standard column-values when a DataObject
|
|
* is instanciated. Does not insert default records {@see $default_records}.
|
|
* This is a map from fieldname to default value.
|
|
*
|
|
* - If you would like to change a default value in a sub-class, just specify it.
|
|
* - If you would like to disable the default value given by a parent class, set the default value to 0,'',
|
|
* or false in your subclass. Setting it to null won't work.
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $defaults = null;
|
|
|
|
/**
|
|
* Multidimensional array which inserts default data into the database
|
|
* on a db/build-call as long as the database-table is empty. Please use this only
|
|
* for simple constructs, not for SiteTree-Objects etc. which need special
|
|
* behaviour such as publishing and ParentNodes.
|
|
*
|
|
* Example:
|
|
* array(
|
|
* array('Title' => "DefaultPage1", 'PageTitle' => 'page1'),
|
|
* array('Title' => "DefaultPage2")
|
|
* ).
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $default_records = null;
|
|
|
|
/**
|
|
* One-to-zero relationship defintion. This is a map of component name to data type. In order to turn this into a
|
|
* true one-to-one relationship you can add a {@link DataObject::$belongs_to} relationship on the child class.
|
|
*
|
|
* Note that you cannot have a has_one and belongs_to relationship with the same name.
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $has_one = null;
|
|
|
|
/**
|
|
* A meta-relationship that allows you to define the reverse side of a {@link DataObject::$has_one}.
|
|
*
|
|
* This does not actually create any data structures, but allows you to query the other object in a one-to-one
|
|
* relationship from the child object. If you have multiple belongs_to links to another object you can use the
|
|
* syntax "ClassName.HasOneName" to specify which foreign has_one key on the other object to use.
|
|
*
|
|
* Note that you cannot have a has_one and belongs_to relationship with the same name.
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $belongs_to;
|
|
|
|
/**
|
|
* This defines a one-to-many relationship. It is a map of component name to the remote data class.
|
|
*
|
|
* This relationship type does not actually create a data structure itself - you need to define a matching $has_one
|
|
* relationship on the child class. Also, if the $has_one relationship on the child class has multiple links to this
|
|
* class you can use the syntax "ClassName.HasOneRelationshipName" in the remote data class definition to show
|
|
* which foreign key to use.
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $has_many = null;
|
|
|
|
/**
|
|
* many-many relationship definitions.
|
|
* This is a map from component name to data type.
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $many_many = null;
|
|
|
|
/**
|
|
* Extra fields to include on the connecting many-many table.
|
|
* This is a map from field name to field type.
|
|
*
|
|
* Example code:
|
|
* <code>
|
|
* public static $many_many_extraFields = array(
|
|
* 'Members' => array(
|
|
* 'Role' => 'Varchar(100)'
|
|
* )
|
|
* );
|
|
* </code>
|
|
*
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $many_many_extraFields = null;
|
|
|
|
/**
|
|
* The inverse side of a many-many relationship.
|
|
* This is a map from component name to data type.
|
|
* @var array
|
|
* @config
|
|
*/
|
|
private static $belongs_many_many = null;
|
|
|
|
/**
|
|
* The default sort expression. This will be inserted in the ORDER BY
|
|
* clause of a SQL query if no other sort expression is provided.
|
|
* @var string
|
|
* @config
|
|
*/
|
|
private static $default_sort = null;
|
|
|
|
/**
|
|
* Default list of fields that can be scaffolded by the ModelAdmin
|
|
* search interface.
|
|
*
|
|
* Overriding the default filter, with a custom defined filter:
|
|
* <code>
|
|
* static $searchable_fields = array(
|
|
* "Name" => "PartialMatchFilter"
|
|
* );
|
|
* </code>
|
|
*
|
|
* Overriding the default form fields, with a custom defined field.
|
|
* The 'filter' parameter will be generated from {@link DBField::$default_search_filter_class}.
|
|
* The 'title' parameter will be generated from {@link DataObject->fieldLabels()}.
|
|
* <code>
|
|
* static $searchable_fields = array(
|
|
* "Name" => array(
|
|
* "field" => "TextField"
|
|
* )
|
|
* );
|
|
* </code>
|
|
*
|
|
* Overriding the default form field, filter and title:
|
|
* <code>
|
|
* static $searchable_fields = array(
|
|
* "Organisation.ZipCode" => array(
|
|
* "field" => "TextField",
|
|
* "filter" => "PartialMatchFilter",
|
|
* "title" => 'Organisation ZIP'
|
|
* )
|
|
* );
|
|
* </code>
|
|
* @config
|
|
*/
|
|
private static $searchable_fields = null;
|
|
|
|
/**
|
|
* User defined labels for searchable_fields, used to override
|
|
* default display in the search form.
|
|
* @config
|
|
*/
|
|
private static $field_labels = null;
|
|
|
|
/**
|
|
* Provides a default list of fields to be used by a 'summary'
|
|
* view of this object.
|
|
* @config
|
|
*/
|
|
private static $summary_fields = null;
|
|
|
|
/**
|
|
* Provides a list of allowed methods that can be called via RESTful api.
|
|
*/
|
|
public static $allowed_actions = null;
|
|
|
|
/**
|
|
* Collect all static properties on the object
|
|
* which contain natural language, and need to be translated.
|
|
* The full entity name is composed from the class name and a custom identifier.
|
|
*
|
|
* @return array A numerical array which contains one or more entities in array-form.
|
|
* Each numeric entity array contains the "arguments" for a _t() call as array values:
|
|
* $entity, $string, $priority, $context.
|
|
*/
|
|
public function provideI18nEntities() {
|
|
$entities = array();
|
|
|
|
$entities["{$this->class}.SINGULARNAME"] = array(
|
|
$this->singular_name(),
|
|
|
|
'Singular name of the object, used in dropdowns and to generally identify a single object in the interface'
|
|
);
|
|
|
|
$entities["{$this->class}.PLURALNAME"] = array(
|
|
$this->plural_name(),
|
|
|
|
'Pural name of the object, used in dropdowns and to generally identify a collection of this object in the'
|
|
. ' interface'
|
|
);
|
|
|
|
return $entities;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given method/parameter has a value
|
|
* (Uses the DBField::hasValue if the parameter is a database field)
|
|
*
|
|
* @param string $field The field name
|
|
* @param array $arguments
|
|
* @param bool $cache
|
|
* @return boolean
|
|
*/
|
|
public function hasValue($field, $arguments = null, $cache = true) {
|
|
// has_one fields should not use dbObject to check if a value is given
|
|
if(!$this->has_one($field) && ($obj = $this->dbObject($field))) {
|
|
return $obj->exists();
|
|
} else {
|
|
return parent::hasValue($field, $arguments, $cache);
|
|
}
|
|
}
|
|
|
|
}
|