mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
27113f82c3
In 3.0 there was some confusion about whether DataLists and ArrayLists were mutable or not. If DataLists were immutable, they'd return the result, and your code would look like $list = $list->filter(....); If DataLists were mutable, they'd operate on themselves, returning nothing, and your code would look like $list->filter(....); This makes all DataLists and ArrayList immutable for all _searching_ operations. Operations on DataList that modify the underlying SQL data store remain mutating. - These functions no longer mutate the existing object, and if you do not capture the value returned by them will have no effect: ArrayList#reverse ArrayList#sort ArrayList#filter ArrayList#exclude DataList#dataQuery (use DataList#alterDataQuery to modify dataQuery in a safe manner) DataList#where DataList#limit DataList#sort DataList#addFilter DataList#applyFilterContext DataList#innerJoin DataList#leftJoin DataList#find DataList#byIDs DataList#reverse - DataList#setDataQueryParam has been added as syntactic sugar around the most common cause of accessing the dataQuery directly - setting query parameters - RelationList#setForeignID has been removed. Always use RelationList#forForeignID when querying, and overload RelationList#foreignIDList when subclassing. - Relatedly,the protected variable RelationList->foreignID has been removed, as the ID is now stored on a query parameter. Use RelationList#getForeignID to read it.
3504 lines
114 KiB
PHP
3504 lines
114 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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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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*/
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public 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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*/
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public 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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*/
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public 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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* 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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* Should dataobjects be validated before they are written?
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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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public static $cache_has_own_table_field = 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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/**
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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 $unsavedRelations;
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/**
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* Returns when validation on DataObjects is enabled.
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* @return bool
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*/
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public static function get_validation_enabled() {
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return self::$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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* @param $enable bool
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* @see DataObject::validate()
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*/
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public static function set_validation_enabled($enable) {
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self::$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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* 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 $class
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* @return array
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*/
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public static function database_fields($class) {
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if(get_parent_class($class) == 'DataObject') {
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if(!isset(self::$classname_spec_cache[$class])) {
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$classNames = ClassInfo::subclassesFor($class);
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$db = DB::getConn();
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if($db->hasField($class, 'ClassName')) {
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$existing = $db->query("SELECT DISTINCT \"ClassName\" FROM \"$class\"")->column();
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$classNames = array_unique(array_merge($existing, $classNames));
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}
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self::$classname_spec_cache[$class] = "Enum('" . implode(', ', $classNames) . "')";
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}
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return array_merge (
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array (
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'ClassName' => self::$classname_spec_cache[$class],
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'Created' => 'SS_Datetime',
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'LastEdited' => 'SS_Datetime'
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),
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self::custom_database_fields($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 $field) {
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$fields[$field . 'ID'] = 'ForeignKey';
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}
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$output = (array) $fields;
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self::$_cache_custom_database_fields[$class] = $output;
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return $output;
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}
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/**
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* Returns the field class if the given db field on the class is a composite field.
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* Will check all applicable ancestor classes and aggregate results.
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*/
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public static function is_composite_field($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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*/
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public function setDataModel(DataModel $model) {
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$this->model = $model;
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}
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/**
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* Destroy all of this objects dependant objects and local caches.
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* You'll need to call this to get the memory of an object that has components or extensions freed.
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*/
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public function destroy() {
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//$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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/**
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* Create a duplicate of this node.
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* Note: now also duplicates relations.
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*
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* @param $doWrite Perform a write() operation before returning the object. If this is true, it will create the
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* duplicate in the database.
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* @return DataObject A duplicate of this node. The exact type will be the type of this node.
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*/
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public function duplicate($doWrite = true) {
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$className = $this->class;
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$clone = new $className( $this->toMap(), false, $this->model );
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$clone->ID = 0;
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$clone->extend('onBeforeDuplicate', $this, $doWrite);
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if($doWrite) {
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$clone->write();
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$this->duplicateManyManyRelations($this, $clone);
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}
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$clone->extend('onAfterDuplicate', $this, $doWrite);
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return $clone;
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}
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/**
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* Copies the many_many and belongs_many_many relations from one object to another instance of the name of object
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* The destinationObject must be written to the database already and have an ID. Writing is performed
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* automatically when adding the new relations.
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*
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* @param $sourceObject the source object to duplicate from
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* @param $destinationObject the destination object to populate with the duplicated relations
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* @return DataObject with the new many_many relations copied in
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*/
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protected function duplicateManyManyRelations($sourceObject, $destinationObject) {
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if (!$destinationObject || $destinationObject->ID < 1) {
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user_error("Can't duplicate relations for an object that has not been written to the database",
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E_USER_ERROR);
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}
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//duplicate complex relations
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// DO NOT copy has_many relations, because copying the relation would result in us changing the has_one
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// relation on the other side of this relation to point at the copy and no longer the original (being a
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// has_one, it can only point at one thing at a time). So, all relations except has_many can and are copied
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if ($sourceObject->has_one()) foreach($sourceObject->has_one() as $name => $type) {
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$this->duplicateRelations($sourceObject, $destinationObject, $name);
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}
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if ($sourceObject->many_many()) foreach($sourceObject->many_many() as $name => $type) {
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//many_many include belongs_many_many
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$this->duplicateRelations($sourceObject, $destinationObject, $name);
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}
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return $destinationObject;
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}
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/**
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* Helper function to duplicate relations from one object to another
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* @param $sourceObject the source object to duplicate from
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* @param $destinationObject the destination object to populate with the duplicated relations
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* @param $name the name of the relation to duplicate (e.g. members)
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*/
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private function duplicateRelations($sourceObject, $destinationObject, $name) {
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$relations = $sourceObject->$name();
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if ($relations) {
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if ($relations instanceOf RelationList) { //many-to-something relation
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if ($relations->Count() > 0) { //with more than one thing it is related to
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foreach($relations as $relation) {
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$destinationObject->$name()->add($relation);
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}
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}
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} else { //one-to-one relation
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$destinationObject->$name = $relations;
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}
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}
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}
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public function getObsoleteClassName() {
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$className = $this->getField("ClassName");
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if (!ClassInfo::exists($className)) return $className;
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}
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public function getClassName() {
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$className = $this->getField("ClassName");
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if (!ClassInfo::exists($className)) return get_class($this);
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return $className;
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}
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/**
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* Set the ClassName attribute. {@link $class} is also updated.
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* Warning: This will produce an inconsistent record, as the object
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* instance will not automatically switch to the new subclass.
|
|
* Please use {@link newClassInstance()} for this purpose,
|
|
* or destroy and reinstanciate the record.
|
|
*
|
|
* @param string $className The new ClassName attribute (a subclass of {@link DataObject})
|
|
*/
|
|
public function setClassName($className) {
|
|
$className = trim($className);
|
|
if(!$className || !is_subclass_of($className, 'DataObject')) return;
|
|
|
|
$this->class = $className;
|
|
$this->setField("ClassName", $className);
|
|
}
|
|
|
|
/**
|
|
* 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 ($this->record && $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;
|
|
}
|
|
|
|
/**
|
|
* 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 $data A map of field name to data values to update.
|
|
*/
|
|
public function update($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) {
|
|
$relObj = $relObj->$relation();
|
|
|
|
// If the intermediate relationship objects have been created, then write them
|
|
if($i<sizeof($relation)-1 && !$relObj->ID) $relObj->write();
|
|
} else {
|
|
user_error(
|
|
"DataObject::update(): Can't traverse relationship '$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();
|
|
$relObj->flushCache();
|
|
} else {
|
|
user_error("Couldn't follow dot syntax '$k' on '$this->class' object", E_USER_WARNING);
|
|
}
|
|
} else {
|
|
$this->$k = $v;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 $data A map of field name to data values to update.
|
|
*/
|
|
public function castedUpdate($data) {
|
|
foreach($data as $k => $v) {
|
|
$this->setCastedField($k,$v);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
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] = 1;
|
|
// 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']);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
protected function validate() {
|
|
$result = new ValidationResult();
|
|
$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()
|
|
*/
|
|
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');
|
|
}
|
|
|
|
/**
|
|
* 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) {
|
|
$firstWrite = false;
|
|
$this->brokenOnWrite = true;
|
|
$isNewRecord = false;
|
|
|
|
$writeException = null;
|
|
|
|
if ($this->ObsoleteClassName) {
|
|
$writeException = new ValidationException(
|
|
"Object is of class '{$this->ObsoleteClassName}' which doesn't exist - ".
|
|
"you need to change the ClassName before you can write it",
|
|
E_USER_WARNING
|
|
);
|
|
}
|
|
else if(self::get_validation_enabled()) {
|
|
$valid = $this->validate();
|
|
if (!$valid->valid()) {
|
|
$writeException = new ValidationException(
|
|
$valid,
|
|
"Validation error writing a $this->class object: " . $valid->message() . ". Object not written.",
|
|
E_USER_WARNING
|
|
);
|
|
}
|
|
}
|
|
|
|
if($writeException) {
|
|
// Used by DODs to clean up after themselves, eg, Versioned
|
|
$this->extend('onAfterSkippedWrite');
|
|
throw $writeException;
|
|
return false;
|
|
}
|
|
|
|
$this->onBeforeWrite();
|
|
if($this->brokenOnWrite) {
|
|
user_error("$this->class has a broken onBeforeWrite() function."
|
|
. " Make sure that you call parent::onBeforeWrite().", E_USER_ERROR);
|
|
}
|
|
|
|
// New record = everything has changed
|
|
|
|
if(($this->ID && is_numeric($this->ID)) && !$forceInsert) {
|
|
$dbCommand = 'update';
|
|
|
|
// Update the changed array with references to changed obj-fields
|
|
foreach($this->record as $k => $v) {
|
|
if(is_object($v) && method_exists($v, 'isChanged') && $v->isChanged()) {
|
|
$this->changed[$k] = true;
|
|
}
|
|
}
|
|
|
|
} else{
|
|
$dbCommand = 'insert';
|
|
|
|
$this->changed = array();
|
|
foreach($this->record as $k => $v) {
|
|
$this->changed[$k] = 2;
|
|
}
|
|
|
|
$firstWrite = true;
|
|
}
|
|
|
|
// No changes made
|
|
if($this->changed) {
|
|
foreach($this->getClassAncestry() as $ancestor) {
|
|
if(self::has_own_table($ancestor))
|
|
$ancestry[] = $ancestor;
|
|
}
|
|
|
|
// Look for some changes to make
|
|
if(!$forceInsert) unset($this->changed['ID']);
|
|
|
|
$hasChanges = false;
|
|
foreach($this->changed as $fieldName => $changed) {
|
|
if($changed) {
|
|
$hasChanges = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if($hasChanges || $forceWrite || !$this->record['ID']) {
|
|
|
|
// 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 = $ancestry[0];
|
|
|
|
if((!isset($this->record['ID']) || !$this->record['ID']) && isset($ancestry[0])) {
|
|
|
|
DB::query("INSERT INTO \"{$baseTable}\" (\"Created\") VALUES (" . DB::getConn()->now() . ")");
|
|
$this->record['ID'] = DB::getGeneratedID($baseTable);
|
|
$this->changed['ID'] = 2;
|
|
|
|
$isNewRecord = true;
|
|
}
|
|
|
|
// Divvy up field saving into a number of database manipulations
|
|
$manipulation = array();
|
|
if(isset($ancestry) && is_array($ancestry)) {
|
|
foreach($ancestry as $idx => $class) {
|
|
$classSingleton = singleton($class);
|
|
|
|
foreach($this->record as $fieldName => $fieldValue) {
|
|
if(isset($this->changed[$fieldName]) && $this->changed[$fieldName]
|
|
&& $fieldType = $classSingleton->hasOwnTableDatabaseField($fieldName)) {
|
|
|
|
$fieldObj = $this->dbObject($fieldName);
|
|
if(!isset($manipulation[$class])) $manipulation[$class] = array();
|
|
|
|
// if database column doesn't correlate to a DBField instance...
|
|
if(!$fieldObj) {
|
|
$fieldObj = DBField::create_field('Varchar', $this->record[$fieldName], $fieldName);
|
|
}
|
|
|
|
// Both CompositeDBFields and regular fields need to be repopulated
|
|
$fieldObj->setValue($this->record[$fieldName], $this->record);
|
|
|
|
if($class != $baseTable || $fieldName!='ID')
|
|
$fieldObj->writeToManipulation($manipulation[$class]);
|
|
}
|
|
}
|
|
|
|
// Add the class name to the base object
|
|
if($idx == 0) {
|
|
$manipulation[$class]['fields']["LastEdited"] = "'".SS_Datetime::now()->Rfc2822()."'";
|
|
if($dbCommand == 'insert') {
|
|
if(!empty($this->record["Created"])) {
|
|
$manipulation[$class]['fields']["Created"]
|
|
= DB::getConn()->prepStringForDB($this->record["Created"]);
|
|
} else {
|
|
$manipulation[$class]['fields']["Created"]
|
|
= DB::getConn()->prepStringForDB(SS_Datetime::now()->Rfc2822());
|
|
}
|
|
//echo "<li>$this->class - " .get_class($this);
|
|
$manipulation[$class]['fields']["ClassName"]
|
|
= DB::getConn()->prepStringForDB($this->class);
|
|
}
|
|
}
|
|
|
|
// In cases where there are no fields, this 'stub' will get picked up on
|
|
if(self::has_own_table($class)) {
|
|
$manipulation[$class]['command'] = $dbCommand;
|
|
$manipulation[$class]['id'] = $this->record['ID'];
|
|
} else {
|
|
unset($manipulation[$class]);
|
|
}
|
|
}
|
|
}
|
|
$this->extend('augmentWrite', $manipulation);
|
|
|
|
// New records have their insert into the base data table done first, so that they can pass the
|
|
// generated ID on to the rest of the manipulation
|
|
if(isset($isNewRecord) && $isNewRecord && isset($manipulation[$baseTable])) {
|
|
$manipulation[$baseTable]['command'] = 'update';
|
|
}
|
|
|
|
DB::manipulate($manipulation);
|
|
|
|
// If there's any relations that couldn't be saved before, save them now (we have an ID here)
|
|
if($this->unsavedRelations) {
|
|
foreach($this->unsavedRelations as $name => $list) {
|
|
$list->changeToList($this->$name());
|
|
}
|
|
$this->unsavedRelations = array();
|
|
}
|
|
|
|
$this->onAfterWrite();
|
|
|
|
$this->changed = null;
|
|
} elseif ( $showDebug ) {
|
|
echo "<b>Debug:</b> no changes for DataObject<br />";
|
|
// Used by DODs to clean up after themselves, eg, Versioned
|
|
$this->extend('onAfterSkippedWrite');
|
|
}
|
|
|
|
// Clears the cache for this object so get_one returns the correct object.
|
|
$this->flushCache();
|
|
|
|
if(!isset($this->record['Created'])) {
|
|
$this->record['Created'] = SS_Datetime::now()->Rfc2822();
|
|
}
|
|
$this->record['LastEdited'] = SS_Datetime::now()->Rfc2822();
|
|
} else {
|
|
// Used by DODs to clean up after themselves, eg, Versioned
|
|
$this->extend('onAfterSkippedWrite');
|
|
}
|
|
|
|
// Write relations as necessary
|
|
if($writeComponents) {
|
|
$this->writeComponents(true);
|
|
}
|
|
return $this->record['ID'];
|
|
}
|
|
|
|
/**
|
|
* Write the cached components to the database. Cached components could refer to two different instances of the
|
|
* same record.
|
|
*
|
|
* @param $recursive Recursively write components
|
|
*/
|
|
public function writeComponents($recursive = false) {
|
|
if(!$this->components) return;
|
|
|
|
foreach($this->components as $component) {
|
|
$component->write(false, false, false, $recursive);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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) {
|
|
$query = new SQLQuery("*", array('"' . $table . '"'));
|
|
$query->setWhere("\"ID\" = $this->ID");
|
|
$query->setDelete(true);
|
|
$query->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.
|
|
*
|
|
* @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);
|
|
|
|
if($joinID) {
|
|
$component = $this->model->$class->byID($joinID);
|
|
}
|
|
|
|
if(!isset($component) || !$component) {
|
|
$component = $this->model->$class->newObject();
|
|
}
|
|
} elseif($class = $this->belongs_to($componentName)) {
|
|
$joinField = $this->getRemoteJoinField($componentName, 'belongs_to');
|
|
$joinID = $this->ID;
|
|
|
|
if($joinID) {
|
|
$component = DataObject::get_one($class, "\"$joinField\" = $joinID");
|
|
}
|
|
|
|
if(!isset($component) || !$component) {
|
|
$component = $this->model->$class->newObject();
|
|
$component->$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 A single join clause. This can be used for filtering, only 1 instance of each DataObject
|
|
* will be returned.
|
|
* @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 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];
|
|
}
|
|
|
|
$joinField = $this->getRemoteJoinField($componentName, 'has_many');
|
|
|
|
$result = new HasManyList($componentClass, $joinField);
|
|
if($this->model) $result->setDataModel($this->model);
|
|
$result = $result->forForeignID($this->ID);
|
|
|
|
$result = $result->where($filter)->limit($limit)->sort($sort);
|
|
if($join) $result = $result->join($join);
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Get the query object for a $has_many Component.
|
|
*
|
|
* @param string $componentName
|
|
* @param string $filter
|
|
* @param string|array $sort
|
|
* @param string $join
|
|
* @param string|array $limit
|
|
* @return SQLQuery
|
|
*/
|
|
public function getComponentsQuery($componentName, $filter = "", $sort = "", $join = "", $limit = "") {
|
|
if(!$componentClass = $this->has_many($componentName)) {
|
|
user_error("DataObject::getComponentsQuery(): Unknown 1-to-many component '$componentName'"
|
|
. " on class '$this->class'", E_USER_ERROR);
|
|
}
|
|
|
|
$joinField = $this->getRemoteJoinField($componentName, 'has_many');
|
|
|
|
$id = $this->getField("ID");
|
|
|
|
// get filter
|
|
$combinedFilter = "\"$joinField\" = '$id'";
|
|
if(!empty($filter)) $combinedFilter .= " AND ({$filter})";
|
|
|
|
return singleton($componentClass)->extendedSQL($combinedFilter, $sort, $limit, $join);
|
|
}
|
|
|
|
/**
|
|
* 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'.
|
|
*
|
|
* @param string $component
|
|
* @param string $type the join type - either 'has_many' or 'belongs_to'
|
|
* @return string
|
|
*/
|
|
public function getRemoteJoinField($component, $type = 'has_many') {
|
|
$remoteClass = $this->$type($component, false);
|
|
|
|
if(!$remoteClass) {
|
|
throw new Exception("Unknown $type component '$component' on class '$this->class'");
|
|
}
|
|
|
|
if($fieldPos = strpos($remoteClass, '.')) {
|
|
return substr($remoteClass, $fieldPos + 1) . 'ID';
|
|
}
|
|
|
|
$remoteRelations = array_flip(Config::inst()->get($remoteClass, 'has_one'));
|
|
|
|
// look for remote has_one joins on this class or any parent classes
|
|
foreach(array_reverse(ClassInfo::ancestry($this)) as $class) {
|
|
if(array_key_exists($class, $remoteRelations)) return $remoteRelations[$class] . 'ID';
|
|
}
|
|
|
|
return 'ParentID';
|
|
}
|
|
|
|
/**
|
|
* 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 = Injector::inst()->create('ManyManyList', $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.
|
|
$result = $result->forForeignID($this->ID);
|
|
|
|
return $result->where($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.
|
|
*
|
|
* @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" : $candidateClass . "ID";
|
|
// HACK HACK HACK!
|
|
if($component == 'NestedProducts') {
|
|
$parentField = $candidateClass . "ID";
|
|
}
|
|
|
|
return array($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();
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
|
|
// TableField sets the record ID to "new" on new row data, so don't try doing anything in that case
|
|
if(!is_numeric($this->record['ID'])) return false;
|
|
|
|
// Limit query to the current record, unless it has the Versioned extension,
|
|
// in which case it requires special handling through augmentLoadLazyFields()
|
|
if (!isset($this->record['Version'])){
|
|
$dataQuery->where("\"$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);
|
|
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->record);
|
|
$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 1 will return strict changes, even !== ones.
|
|
* - Level 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' => 2)
|
|
* )
|
|
* </code>
|
|
*
|
|
* @param boolean $databaseFieldsOnly Get only database fields that have changed
|
|
* @param int $changeLevel The strictness of what is defined as change
|
|
* @return array
|
|
*/
|
|
public function getChangedFields($databaseFieldsOnly = false, $changeLevel = 1) {
|
|
$changedFields = array();
|
|
|
|
// Update the changed array with references to changed obj-fields
|
|
foreach($this->record as $k => $v) {
|
|
if(is_object($v) && method_exists($v, 'isChanged') && $v->isChanged()) {
|
|
$this->changed[$k] = 2;
|
|
}
|
|
}
|
|
|
|
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 > 1) {
|
|
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 = 1) {
|
|
$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 $val New field value
|
|
*/
|
|
public function setField($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);
|
|
}
|
|
|
|
$defaults = $this->stat('defaults');
|
|
// if a field is not existing or has strictly changed
|
|
if(!isset($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] = 1;
|
|
|
|
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] = 2;
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 $value New field value
|
|
*/
|
|
public function setCastedField($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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given field exists
|
|
* in a database column on any of the objects tables,
|
|
* or as 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) {
|
|
// Add base fields which are not defined in static $db
|
|
static $fixedFields = array(
|
|
'ID' => 'Int',
|
|
'ClassName' => 'Enum',
|
|
'LastEdited' => 'SS_Datetime',
|
|
'Created' => 'SS_Datetime',
|
|
);
|
|
|
|
if(isset($fixedFields[$field])) return true;
|
|
|
|
return array_key_exists($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) {
|
|
// Add base fields which are not defined in static $db
|
|
if($field == "ID") return "Int";
|
|
if($field == "ClassName" && get_parent_class($this) == "DataObject") return "Enum";
|
|
if($field == "LastEdited" && get_parent_class($this) == "DataObject") return "SS_Datetime";
|
|
if($field == "Created" && get_parent_class($this) == "DataObject") return "SS_Datetime";
|
|
|
|
// Add fields from Versioned extension
|
|
if($field == 'Version' && $this->hasExtension('Versioned')) {
|
|
return 'Int';
|
|
}
|
|
// get cached fieldmap
|
|
$fieldMap = isset(DataObject::$cache_has_own_table_field[$this->class])
|
|
? DataObject::$cache_has_own_table_field[$this->class] : null;
|
|
|
|
// if no fieldmap is cached, get all fields
|
|
if(!$fieldMap) {
|
|
$fieldMap = Config::inst()->get($this->class, 'db', Config::UNINHERITED);
|
|
|
|
// all $db fields on this specific class (no parents)
|
|
foreach(self::composite_fields($this->class, false) as $fieldname => $fieldtype) {
|
|
$combined_db = singleton($fieldtype)->compositeDatabaseFields();
|
|
foreach($combined_db as $name => $type){
|
|
$fieldMap[$fieldname.$name] = $type;
|
|
}
|
|
}
|
|
|
|
// all has_one relations on this specific class,
|
|
// add foreign key
|
|
$hasOne = Config::inst()->get($this->class, 'has_one', Config::UNINHERITED);
|
|
if($hasOne) foreach($hasOne as $fieldName => $fieldSchema) {
|
|
$fieldMap[$fieldName . 'ID'] = "ForeignKey";
|
|
}
|
|
|
|
// set cached fieldmap
|
|
DataObject::$cache_has_own_table_field[$this->class] = $fieldMap;
|
|
}
|
|
|
|
// Remove string-based "constructor-arguments" from the DBField definition
|
|
if(isset($fieldMap[$field])) {
|
|
if(is_string($fieldMap[$field])) return strtok($fieldMap[$field],'(');
|
|
else return $fieldMap[$field]['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
|
|
$query = new SQLQuery(
|
|
"\"Page_Can$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 SQLQuery("\"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, array($this,'isNotNull'));
|
|
// If there are any non-NULL responses, then return the lowest one of them.
|
|
// If any explicitly deny the permission, then we don't get access
|
|
if($results) return min($results);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Helper functon for extendedCan
|
|
*
|
|
* @param Mixed $value
|
|
* @return boolean
|
|
*/
|
|
private function isNotNull($value) {
|
|
return !is_null($value);
|
|
}
|
|
|
|
/**
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canView($member = null) {
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canEdit($member = null) {
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canDelete($member = null) {
|
|
return Permission::check('ADMIN', 'any', $member);
|
|
}
|
|
|
|
/**
|
|
* @todo Should canCreate be a static method?
|
|
*
|
|
* @param Member $member
|
|
* @return boolean
|
|
*/
|
|
public function canCreate($member = null) {
|
|
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);
|
|
|
|
// General casting information for items in $db or $casting
|
|
} else if($helper = $this->castingHelper($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, $this);
|
|
|
|
// Special case for ClassName
|
|
} else if($fieldName == 'ClassName') {
|
|
$val = get_class($this);
|
|
return DBField::create_field('Varchar', $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 $fieldPath string
|
|
* @return DBField
|
|
*/
|
|
public function relObject($fieldPath) {
|
|
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);
|
|
}
|
|
|
|
|
|
if (!($object instanceof DBField) && !($object instanceof DataList)) {
|
|
// Todo: come up with a broader range of exception objects to describe differnet kinds of errors
|
|
// programatically
|
|
throw new Exception("Unable to traverse to related object field [$fieldPath] on [$this->class]");
|
|
}
|
|
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 $fieldPath string
|
|
* @return string
|
|
*/
|
|
public function relField($fieldName) {
|
|
$component = $this;
|
|
|
|
if(strpos($fieldName, '.') !== false) {
|
|
$parts = explode('.', $fieldName);
|
|
$fieldName = array_pop($parts);
|
|
|
|
// Traverse dot syntax
|
|
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();
|
|
}
|
|
}
|
|
}
|
|
|
|
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 $filter A filter to be inserted into the WHERE clause.
|
|
* @param string|array $sort A sort expression to be inserted into the ORDER BY clause. If omitted,
|
|
* self::$default_sort will be used.
|
|
* @param string $join A single join clause. This can be used for filtering, only 1 instance of each DataObject
|
|
* will be returned.
|
|
* @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.
|
|
*
|
|
* @return mixed 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;
|
|
}
|
|
|
|
$result = DataList::create($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);
|
|
}
|
|
|
|
if($join) $result = $result->join($join);
|
|
|
|
$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 $filter A filter to be inserted into the WHERE clause
|
|
* @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);
|
|
|
|
$cacheKey = "{$filter}-{$orderby}";
|
|
if($extra = $SNG->extend('cacheKeyComponent')) {
|
|
$cacheKey .= '-' . implode("-", $extra);
|
|
}
|
|
$cacheKey = md5($cacheKey);
|
|
|
|
// 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])) {
|
|
$dl = DataList::create($callerClass)->where($filter)->sort($orderby);
|
|
$dl->setDataModel(DataModel::inst());
|
|
$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 $persistent When true will also clear persistent data stored in the Cache system.
|
|
* When false will just clear session-local cached data
|
|
*
|
|
*/
|
|
public function flushCache($persistent = true) {
|
|
if($persistent) Aggregate::flushCache($this->class);
|
|
|
|
if($this->class == 'DataObject') {
|
|
DataObject::$_cache_get_one = array();
|
|
return;
|
|
}
|
|
|
|
$classes = ClassInfo::ancestry($this->class);
|
|
foreach($classes as $class) {
|
|
if(isset(DataObject::$_cache_get_one[$class])) unset(DataObject::$_cache_get_one[$class]);
|
|
}
|
|
|
|
$this->extend('flushCache');
|
|
|
|
$this->components = array();
|
|
}
|
|
|
|
/**
|
|
* Flush the get_one global cache and destroy associated objects.
|
|
*/
|
|
public static function flush_and_destroy_cache() {
|
|
if(DataObject::$_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() {
|
|
DataObject::$cache_has_own_table = array();
|
|
DataObject::$cache_has_own_table_field = 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)) {
|
|
if(is_subclass_of($callerClass, 'DataObject')) {
|
|
$baseClass = ClassInfo::baseDataClass($callerClass);
|
|
return DataObject::get_one($callerClass,"\"$baseClass\".\"ID\" = $id", $cache);
|
|
|
|
// This simpler code will be used by non-DataObject classes that implement DataObjectInterface
|
|
} else {
|
|
return DataObject::get_one($callerClass,"\"ID\" = $id", $cache);
|
|
}
|
|
} else {
|
|
user_error("DataObject::get_by_id passed a non-numeric ID #$id", E_USER_WARNING);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the name of the base table for this object
|
|
*/
|
|
public function baseTable() {
|
|
$tableClasses = ClassInfo::dataClassesFor($this->class);
|
|
return array_shift($tableClasses);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------//
|
|
|
|
/**
|
|
* 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($this->class));
|
|
DB::requireTable($this->class, $fields, $indexes, $hasAutoIncPK, $this->stat('create_table_options'),
|
|
$extensions);
|
|
} else {
|
|
DB::dontRequireTable($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::requireTable("{$this->class}_$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 = $this->fieldLabels();
|
|
|
|
// fallback to summary fields
|
|
if(!$fields) $fields = array_keys($this->summaryFields());
|
|
|
|
// 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 => $spec) {
|
|
// var_dump("{$ancestorClass}.{$type}_{$name}");
|
|
$autoLabels[$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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
public static $has_many = null;
|
|
|
|
/**
|
|
* many-many relationship definitions.
|
|
* This is a map from component name to data type.
|
|
* @var array
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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
|
|
*/
|
|
public 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>
|
|
*/
|
|
public static $searchable_fields = null;
|
|
|
|
/**
|
|
* User defined labels for searchable_fields, used to override
|
|
* default display in the search form.
|
|
*/
|
|
public static $field_labels = null;
|
|
|
|
/**
|
|
* Provides a default list of fields to be used by a 'summary'
|
|
* view of this object.
|
|
*/
|
|
public 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) {
|
|
$obj = $this->dbObject($field);
|
|
if($obj) {
|
|
return $obj->exists();
|
|
} else {
|
|
return parent::hasValue($field, $arguments, $cache);
|
|
}
|
|
}
|
|
|
|
}
|