tonyair/silverstripe-framework
1
0
Fork 0
mirror of https://github.com/silverstripe/silverstripe-framework synced 2024-09-27 20:06:52 +02:00
Code Issues Projects Releases Wiki Activity

FEATURE: Refactored ViewableData. The main changes are:

Browse Source 
* Values are not always casted before being rendered into a template.
	* Casting information can by dynamically provided by $casting_properties, rather than being hardcoded to $casting and $db.
	* Removed unneeded ViewableData_Iterator - ArrayIterator is instead used.
	* Removed ViewableData_ObjectCustomised - now just uses ViewableData_Customised.
ENHANCEMENT: Added template and value methods to database fields.
MINOR: Added ViewableDataTest and extended DataObjectTest.

From: Andrew Short <andrewjshort@gmail.com>

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@88474 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Andrew Short 2009-10-11 00:06:58 +00:00 committed by Sam Minnee
parent d2a1f25d16
commit 365b4784a9
7 changed files with 914 additions and 1007 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1699
core/ViewableData.php Normal file → Executable file
View File

@ -1,1230 +1,923 @@
<?php
/**
* Generic class for all data that will be accessed from a view.
*
* View interrogate their controllers to provide them with the data they need. They to this by
* calling the methods provided by the ViewableData base-class, from which most Sapphire objects
* are inherited.
*
* ViewableData cover page controls, controllers, and data objects. It's the basic unit of
* data exchange. More specifically, it's anything that can be put into a view.
*
* If any public method on this class is prefixed with an underscore,
* the results are cached in memory through {@link cachedCall()}.
*
* A ViewableData object is any object that can be rendered into a template/view.
*
* A view interrogates the object being currently rendered in order to get data to render into the template. This data
* is provided and automatically escaped by ViewableData. Any class that needs to be available to a view (controllers,
* {@link DataObject}s, page controls) should inherit from this class.
*
* @package sapphire
* @subpackage view
*/
class ViewableData extends Object implements IteratorAggregate {
/**
* The iterator position.
* @var int
*/
protected $iteratorPos;
/**
* Total number of items in the iterator.
* @var int
*/
protected $iteratorTotalItems;
/**
* Failover object.
* An array of objects to cast certain fields to. This is set up as an array in the format:
*
* <code>
* public static $casting = array (
* 'FieldName' => 'ClassToCastTo(Arguments)'
* );
* </code>
*
* @var array
*/
public static $casting = array (
'BaseHref' => 'Varchar',
'CSSClasses' => 'Varchar'
);
/**
* The default object to cast scalar fields to if casting information is not specified, and casting to an object
* is required.
*
* @var string
*/
public static $default_cast = 'HTMLVarchar';
/**
* An array of static property names to search for properties to get casting information from.
*
* @var array
*/
public static $casting_properties = array('casting');
/**
* @var array
*/
private static $casting_cache = array();
// -----------------------------------------------------------------------------------------------------------------
/**
* @var int
*/
protected $iteratorPos, $iteratorTotalItems;
/**
* A failover object to attempt to get data from if it is not present on this object.
*
* @var ViewableData
*/
protected $failover;
/**
* A cast of this object's controls in object format
* @var array
* @var ViewableData
*/
protected $_object_cache = array();
protected $customisedObject;
/**
* A cast of this object's controls in XML-safe format
* @var array
*/
protected $_xml_cache = array();
/**
* A cast of this object's controls in their native format (used by cachedCall)
* @var array
*/
protected $_natural_cache = array();
private $objCache = array();
// -----------------------------------------------------------------------------------------------------------------
/**
* @var $customisedObj ViewableData_Customised|ViewableData_ObjectCustomised
* Saves past customisations to make them available on subsequent rendering-calls.
* E.g. This enables LeftAndMain to access customisations on controller-actions in
* Left() and Right().
* Converts a field spec into an object creator. For example: "Int" becomes "new Int($fieldName);" and "Varchar(50)"
* becomes "new Varchar($fieldName, 50);".
*
* @param string $fieldSchema The field spec
* @return string
*/
protected $customisedObj;
public static function castingObjectCreator($fieldSchema) {
if(strpos($fieldSchema, '(') === false) {
return "return Object::create('{$fieldSchema}', \$fieldName);";
} else {
return 'return Object::create(' . preg_replace('/^([^(]+)\(/', '\'$1\', $fieldName, ', $fieldSchema) . ';';
}
}
/**
* Define custom methods for this object. Called once per class.
* Implements failover and cached methods.
* Convert a field schema (e.g. "Varchar(50)") into a casting object creator array that contains both a className
* and castingHelper constructor code. See {@link castingObjectCreator} for more information about the constructor.
*
* @param string $fieldSchema
* @return array
*/
function defineMethods() {
// Set up failover
if($this->failover) {
$this->addMethodsFrom('failover');
public static function castingObjectCreatorPair($fieldSchema) {
if(strpos($fieldSchema, '(') === false) {
return array (
'className' => $fieldSchema,
'castingHelper' => self::castingObjectCreator($fieldSchema)
);
}
if(isset($_GET['debugfailover'])) {
Debug::message("$this->class / $this->failover");
if(preg_match('/^([^(]+)\(/', $fieldSchema, $parts)) {
return array (
'className' => $parts[1],
'castingHelper' => self::castingObjectCreator($fieldSchema)
);
}
// Set up cached methods
$methodNames = get_class_methods($this);
foreach($methodNames as $methodName) {
if($methodName[0] == "_" && $methodName[1] != "_") {
$trimmedName = substr($methodName,1);
$this->createMethod($trimmedName, "return \$obj->cachedCall('$methodName', '$trimmedName', \$args);");
throw new InvalidArgumentException("ViewableData::castingObjectCreatorPair(): bad field schema '$fieldSchema'");
}
// FIELD GETTERS & SETTERS -----------------------------------------------------------------------------------------
/**
* Check if a field exists on this object or its failover.
*
* @param string $property
* @return bool
*/
public function __isset($property) {
return $this->hasField($property) || ($this->failover && $this->failover->hasField($property));
}
/**
* Get the value of a property/field on this object. This will check if a method called get{$property} exists, then
* check if a field is available using {@link ViewableData::getField()}, then fall back on a failover object.
*
* @param string $property
* @return mixed
*/
public function __get($property) {
if($this->hasMethod($method = "get$property")) {
return $this->$method();
} elseif($this->hasField($property)) {
return $this->getField($property);
} elseif($this->failover) {
return $this->failover->$property;
}
}
/**
* Set a property/field on this object. This will check for the existence of a method called set{$property}, then
* use the {@link ViewableData::setField()} method.
*
* @param string $property
* @param mixed $value
*/
public function __set($property, $value) {
if($this->hasMethod($method = "set$property")) {
$this->$method($value);
} else {
$this->setField($property, $value);
}
}
/**
* Check if a field exists on this object. This should be overloaded in child classes.
*
* @param string $field
* @return bool
*/
public function hasField($field) {
return property_exists($this, $field);
}
/**
* Get the value of a field on this object. This should be overloaded in child classes.
*
* @param string $field
* @return mixed
*/
public function getField($field) {
return $this->$field;
}
/**
* Set a field on this object. This should be overloaded in child classes.
*
* @param string $field
* @param mixed $value
*/
public function setField($field, $value) {
$this->$field = $value;
}
// -----------------------------------------------------------------------------------------------------------------
/**
* Add methods from the {@link ViewableData::$failover} object, as well as wrapping any methods prefixed with an
* underscore into a {@link ViewableData::cachedCall()}.
*/
public function defineMethods() {
if($this->failover) {
$this->addMethodsFrom('failover');
if(isset($_REQUEST['debugfailover'])) {
Debug::message("$this->class created with a failover class of {$this->failover->class}");
}
}
foreach($this->allMethodNames() as $method) {
if($method[0] == '_' && $method[1] != '_') {
$this->createMethod (
substr($method, 1), "return \$obj->cachedCall('$method', '" . substr($method, 1) . "', \$args);"
);
}
}
parent::defineMethods();
}
/**
* Returns a "1 record iterator"
* Views <%control %> tags operate by looping over an item for as many instances as are
* available. When you stick a single ViewableData object in a control tag, the foreach()
* loop still needs to work. We do this by creating an iterator that only returns one record.
* This will always return the current ViewableData object.
* @return ViewableData_Iterator A 1 record iterator
* Merge some arbitrary data in with this object. This method returns a {@link ViewableData_Customised} instance
* with references to both this and the new custom data.
*
* Note that any fields you specify will take precedence over the fields on this object.
*
* @param array|ViewableData $data
* @return ViewableData_Customised
*/
function getIterator() {
return new ViewableData_Iterator($this);
}
/**
* Accessor overloader.
* Allows default getting of fields via $this->getVal(), or mediation via a
* getParamName() method.
* @param string $field The field name.
* @return mixed The field.
*/
public function __get($field) {
if($this->hasMethod($funcName = "get$field")) {
return $this->$funcName();
} else if($this->hasField($field)) {
return $this->getField($field);
} else if($this->failover) {
return $this->failover->$field;
}
}
/**
* Setter overloader.
* Allows default setting of fields in $this->setValue(), or mediation via a
* getParamName() method.
* @param string $field The field name.
* @param mixed $val The field value.
*/
public function __set($field, $val) {
if($this->hasMethod($funcName = "set$field")) {
return $this->$funcName($val);
} else {
$this->setField($field, $val);
}
}
/**
* Is-set overloader.
* Will check to see if the given field exists on this object. Calls the hasField() method,
* as well as checking failover classes.
* @param string $field The field name.
* @return boolean True if field exists
*/
public function __isset($field) {
if($this->hasField($field)) {
return true;
public function customise($data) {
if(is_array($data) && (empty($data) || ArrayLib::is_associative($data))) {
$data = new ArrayData($data);
}
if($this->failover && $this->failover->hasField($field)) {
return true;
if($data instanceof ViewableData) {
return new ViewableData_Customised($this, $data);
}
return false;
throw new InvalidArgumentException (
'ViewableData->customise(): $data must be an associative array or a ViewableData instance'
);
}
/**
* Get a field by it's name. This should be overloaded in child classes.
* @param string $field fieldname
* @param ViewableData $object
*/
protected function getField($field) {
public function setCustomisedObj(ViewableData $object) {
$this->customisedObject = $object;
}
/**
* Set a fields value. This should be overloaded in child classes.
* @param string $field The field name.
* @param mixed $val The field value.
*/
protected function setField($field, $val) {
$this->$field = $val;
}
// CASTING ---------------------------------------------------------------------------------------------------------
/**
* Checks if a field exists on this object. This should be overloaded in child classes.
* @param string $field The field name
* @return boolean
*/
public function hasField($field) {
}
/**
* Cache used by castingHelperPair().
* @var array
*/
protected static $castingHelperPair_cache;
/**
* Returns the "casting helper" for the given field and the casting class name. A casting helper
* is a piece of PHP code that, when evaluated, will create an object to represent the value.
*
* The return value is an map containing two values:
* - className: The name of the class (eg: 'Varchar')
* - castingHelper: The casting helper (eg: 'return new Varchar($fieldName);')
*
* @param string $field The field name
* Get the class a field on this object would be casted to, as well as the casting helper for casting a field to
* an object (see {@link ViewableData::castingHelper()} for information on casting helpers).
*
* The returned array contains two keys:
* - className: the class the field would be casted to (e.g. "Varchar")
* - castingHelper: the casting helper for casting the field (e.g. "return new Varchar($fieldName)")
*
* @param string $field
* @return array
*/
public function castingHelperPair($field) {
$class = $this->class;
if(!isset(self::$castingHelperPair_cache[$class])) {
if(!isset(self::$casting_cache[$this->class])) {
if($this->failover) {
$this->failover->buildCastingHelperCache(self::$castingHelperPair_cache[$class]);
$this->failover->buildCastingCache(self::$casting_cache[$this->class]);
}
$this->buildCastingHelperCache(self::$castingHelperPair_cache[$class]);
self::$castingHelperPair_cache[$class]['ClassName'] = array("className" => "Varchar", "castingHelper" => "return new Varchar(\$fieldName);");
$this->buildCastingCache(self::$casting_cache[$this->class]);
}
return isset(self::$castingHelperPair_cache[$class][$field]) ? self::$castingHelperPair_cache[$class][$field] : null;
}
/**
* A helper function used by castingHelperPair() to build the cache.
* @param array
*/
public function buildCastingHelperCache(&$cache) {
$class = $this->class ? $this->class : get_class($this);
$classes = ClassInfo::ancestry($class);
foreach($classes as $componentClass) {
if($componentClass == "ViewableData") $isViewableData = true;
if($componentClass == "DataObject") $isDataObject = true;
if(isset($isDataObject) && $isDataObject) {
$fields = Object::uninherited_static($componentClass, 'db');
if($fields) foreach($fields as $fieldName => $fieldSchema) {
$cache[$fieldName] = ViewableData::castingObjectCreatorPair($fieldSchema);
}
}
if(isset($isViewableData) && $isViewableData) {
$fields = Object::uninherited_static($componentClass, 'casting');
if($fields) foreach($fields as $fieldName => $fieldSchema) {
$cache[$fieldName] = ViewableData::castingObjectCreatorPair($fieldSchema);
}
}
}
if(isset(self::$casting_cache[$this->class][$field])) return self::$casting_cache[$this->class][$field];
}
/**
* Returns the "casting helper" for the given field. A casting helper
* is a piece of PHP code that, when evaluated, will create an object to represent the value.
* @param string $field The field name.
* Return the "casting helper" (a piece of PHP code that when evaluated creates a casted value object) for a field
* on this object.
*
* @param string $field
* @return string
*/
public function castingHelper($field) {
$pair = $this->castingHelperPair($field);
return $pair['castingHelper'];
if($pair = $this->castingHelperPair($field)) return $pair['castingHelper'];
}
/**
* Converts a field spec into an object creator.
* For example: "Int" becomes "new Int($fieldName);" and "Varchar(50)" becomes "new Varchar($fieldName, 50);"
* @param string $fieldSchema The field spec.
* Get the class name a field on this object will be casted to
*
* @param string $field
* @return string
*/
public static function castingObjectCreator($fieldSchema) {
if(strpos($fieldSchema,'(') === false) {
return "return Object::create('{$fieldSchema}',\$fieldName);";
} else {
return "return new " . ereg_replace('^([^(]+)\\(','\\1($fieldName,', $fieldSchema) . ';';
}
}
/**
* Converts a field spec into an object creator pair; this is a map containing className and castingHelper.
* See {@link castingObjectCreator} for more information.
* @param string $fieldSchema The field spec.
* @return array
*/
public static function castingObjectCreatorPair($fieldSchema) {
//Remove any array brackets:
if(strpos($fieldSchema, '[')!==false)
$fieldSchema=substr($fieldSchema, 0, strpos($fieldSchema, '['));
if(strpos($fieldSchema,'(') === false) {
return array(
'className' => $fieldSchema,
'castingHelper' => "return Object::create('{$fieldSchema}',\$fieldName);"
);
} else if(ereg('^([^(]+)\\(', $fieldSchema, $parts)) {
return array(
'className' => $parts[1],
'castingHelper' => "return new " . ereg_replace('^([^(]+)\\(','\\1($fieldName,', $fieldSchema) . ';',
);
} else {
user_error("castingObjectCreatorPair: Bad field schema '$fieldSchema' in class $this->class", E_USER_WARNING);
}
public function castingClass($field) {
if($pair = $this->castingHelperPair($field)) return $pair['className'];
}
/**
* Return the string-format type for the given field.
*
* @param string $fieldName
* @param string $field
* @return string 'xml'|'raw'
*/
function escapeTypeForField($fieldName) {
$helperPair = $this->castingHelperPair($fieldName);
$castedClass = $helperPair['className'];
if(!$castedClass || $castedClass == 'HTMLText' || $castedClass == 'HTMLVarchar') return "xml";
else return "raw";
public function escapeTypeForField($field) {
if(!$class = $this->castingClass($field)) {
$class = self::$default_cast;
}
return Object::get_static($class, 'escape_type');
}
/**
* Return the object version of the given field/method.
* @param string $fieldName The name of the field/method.
* @param array $args The arugments.
* @param boolean $forceReturnObject If true, this method will *always* return an object. If there's
* no sensible one available, it will return new ViewableData()
* @return mixed;
* Save the casting cache for this object (including data from any failovers) into a variable
*
* @param reference $cache
*/
public function obj($fieldName, $args = null, $forceReturnObject = false) {
if(isset($_GET['debug_profile'])) {
Profiler::mark("template($fieldName)", " on $this->class object");
}
public function buildCastingCache(&$cache) {
$ancestry = array_reverse(ClassInfo::ancestry($this->class));
$merge = true;
if($args) {
$identifier = $fieldName . ',' . implode(',', $args);
} else {
$identifier = $fieldName;
}
// Fix for PHP 5.3 - $args cannot be null
if(is_null($args))
$args=Array();
if(isset($this->_object_cache[$identifier])) {
$fieldObj = $this->_object_cache[$identifier];
} else {
if($this->hasMethod($fieldName)) {
$val = call_user_func_array(array(&$this, $fieldName), $args);
} else {
$val = $this->$fieldName;
}
$this->_natural_cache[$identifier] = $val;
if(is_object($val)) {
$fieldObj = $val;
foreach($ancestry as $class) {
if(!isset(self::$casting_cache[$class]) && $merge) {
if($class) $mergeFields = Object::get_static($class, 'casting_properties');
} else {
$helperPair = $this->castingHelperPair($fieldName);
if(!$helperPair && $this->failover) {
$helperPair = $this->failover->castingHelperPair($fieldName);
}
$constructor = $helperPair['castingHelper'];
if($constructor) {
$fieldObj = eval($constructor);
if($this->hasMethod('getAllFields')) {
$fieldObj->setValue($val, $this->getAllFields());
} else {
$fieldObj->setValue($val);
if($mergeFields) foreach($mergeFields as $field) {
$casting = Object::uninherited_static($class, $field);
if($casting) foreach($casting as $field => $cast) {
if(!isset($cache[$field])) $cache[$field] = self::castingObjectCreatorPair($cast);
}
}
if($class == 'ViewableData') $merge = false;
} elseif($merge) {
$cache = ($cache) ? array_merge(self::$casting_cache[$class], $cache) : self::$casting_cache[$class];
}
$this->_object_cache[$identifier] = isset($fieldObj) ? $fieldObj : null;
if($class == 'ViewableData') $merge = false;
}
if(!isset($fieldObj) && $forceReturnObject){
$fieldObj = new ViewableData();
}
if(isset($_GET['debug_profile'])) {
Profiler::unmark("template($fieldName)", " on $this->class object");
}
return isset($fieldObj) ? $fieldObj : null;
}
/**
* Return the value (non-object) version of the given field/method.
* @deprecated ViewableData->val() is deprecated, use XML_val() instead
*/
public function val($fieldName, $args = null) {
return $this->XML_val($fieldName, $args);
}
// TEMPLATE ACCESS LAYER -------------------------------------------------------------------------------------------
/**
* Returns the value of the given field / method in an XML-safe format.
* @param string $fieldName The field name.
* @param array $args The arguments.
* @param boolean $cache Cache calls to this function.
* Render this object into the template, and get the result as a string. You can pass one of the following as the
* $template parameter:
* - a template name (e.g. Page)
* - an array of possible template names - the first valid one will be used
* - an SSViewer instance
*
* @param string|array|SSViewer $template the template to render into
* @param array $customFields fields to customise() the object with before rendering
* @return string
*/
public function XML_val($fieldName, $args = null, $cache = false) {
if(isset($_GET['debug_profile'])) {
Profiler::mark("template($fieldName)", " on $this->class object");
}
if($cache) {
if($args) {
$identifier = $fieldName . ',' . implode(',', $args);
} else {
$identifier = $fieldName;
}
if(isset($this->_xml_cache[$identifier])) {
if(isset($_GET['debug_profile'])) {
Profiler::unmark("template($fieldName)", " on $this->class object");
}
return $this->_xml_cache[$identifier];
}
*/
public function renderWith($template, $customFields = null) {
if(!is_object($template)) {
$template = new SSViewer($template);
}
// Fix for PHP 5.3 - $args cannot be null
if(is_null($args))
$args=Array();
$data = ($this->customisedObject) ? $this->customisedObject : $this;
// This will happen when cachedCall was called on an object; don't bother re-calling the method, just
// do the conversion step below
if($cache && isset($this->_object_cache[$identifier])) {
$val = $this->_object_cache[$identifier];
// Get the field / method
} else {
if($this->hasMethod($fieldName)) {
$val = call_user_func_array(array(&$this, $fieldName), $args);
} else {
$val = $this->$fieldName;
}
if(isset($identifier)) {
$this->_natural_cache[$identifier] = $val;
}
if(is_array($customFields) || $customFields instanceof ViewableData) {
$data = $data->customise($customFields);
}
// Case 1: object; converted to XML_val() by
if(is_object($val)) {
if($cache) {
$this->_object_cache[$identifier] = $val;
}
$val = $val->forTemplate();
if($cache) {
$this->_xml_cache[$identifier] = $val;
}
} else {
// Identify the 'casted class' of this field, which will give us some hints about what kind of
// data has been returned
if(isset($_GET['debug_profile'])) {
Profiler::mark('casting cost');
}
// Case 2: Check if the value is raw and must be made XML-safe
if($this->escapeTypeForField($fieldName) != 'xml') $val = Convert::raw2xml($val);
if(isset($_GET['debug_profile'])) {
Profiler::unmark('casting cost');
}
if($cache) {
$this->_xml_cache[$identifier] = $val;
}
if($template instanceof SSViewer) {
return $template->process($data);
}
if(isset($_GET['debug_profile'])) {
Profiler::unmark("template($fieldName)", " on $this->class object");
}
return $val;
throw new UnexpectedValueException (
"ViewableData::renderWith(): unexpected $template->class object, expected an SSViewer instance"
);
}
/**
* Return a named array of calls to XML_val with different parameters.
* Each value in the array is used as the first argument to XML_val. The result is a named array of the return values.
*
* The intended use-case is when converting simple templates to PHP methods to optimise code, as we did in the form classes.
* If you're calling renderWith more than a few times on a very simple template, this can be useful.
*
* extract(getXMLValues(array('Title','Field','Message')))
* // You can now use $Title, $Field, and $Message as you would in a template
*
* @param array $elementList The list of field names.
* Get the value of a field on this object, automatically inserting the value into any available casting objects
* that have been specified.
*
* @param string $fieldName
* @param array $arguments
* @param bool $forceReturnedObject if TRUE, the value will ALWAYS be casted to an object before being returned,
* even if there is no explicit casting information
* @param string $cacheName a custom cache name
*/
public function obj($fieldName, $arguments = null, $forceReturnedObject = true, $cache = false, $cacheName = null) {
if(isset($_REQUEST['debug_profile'])) {
Profiler::mark("obj.$fieldName", "on a $this->class object");
}
if(!$cacheName) $cacheName = $arguments ? $fieldName . implode(',', $arguments) : $fieldName;
if(!isset($this->objCache[$cacheName]) || !$cache) {
if($this->hasMethod($fieldName)) {
$value = call_user_func_array(array($this, $fieldName), (is_array($arguments) ? $arguments : array()));
} else {
$value = $this->$fieldName;
}
if(!is_object($value) && ($this->castingClass($fieldName) || $forceReturnedObject)) {
if(!$castConstructor = $this->castingHelper($fieldName)) {
$castConstructor = self::castingObjectCreator($this->stat('default_cast'));
}
$valueObject = eval($castConstructor);
$valueObject->setValue($value, ($this->hasMethod('getAllFields') ? $this->getAllFields() : null));
$value = $valueObject;
}
if($cache) $this->objCache[$cacheName] = $value;
} else {
$value = $this->objCache[$cacheName];
}
if(isset($_REQUEST['debug_profile'])) {
Profiler::unmark("obj.$fieldName", "on a $this->class object");
}
if(!is_object($value) && $forceReturnedObject) {
$default = Object::get_static('ViewableData', 'default_cast');
$value = new $default();
}
return $value;
}
/**
* A simple wrapper around {@link ViewableData::obj()} that automatically caches the result so it can be used again
* without re-running the method.
*
* @param string $field
* @param array $arguments
* @param string $identifier an optional custom cache identifier
*/
public function cachedCall($field, $arguments = null, $identifier = null) {
return $this->obj($field, $arguments, false, true, $identifier);
}
/**
* Checks if a given method/field has a valid value. If the result is an object, this will return the result of the
* exists method, otherwise will check if the result is not just an empty paragraph tag.
*
* @param string $field
* @param array $argument
* @param bool $cache
* @return bool
*/
public function hasValue($field, $arguments = null, $cache = true) {
$result = $cache ? $this->cachedCall($field, $arguments) : $this->obj($field, $arguments, false, false);
if(is_object($result)) {
return $result->exists();
} else {
return ($result && $result !== '<p></p>');
}
}
/**#@+
* @param string $field
* @param array $arguments
* @param bool $cache
* @return string
*/
/**
* Get the string value of a field on this object that has been suitable escaped to be inserted directly into a
* template.
*/
public function XML_val($field, $arguments = null, $cache = false) {
if($result = $this->obj($field, $arguments, false, $cache)) {
return is_object($result) ? $result->forTemplate() : $result;
}
}
/**
* Return the value of the field without any escaping being applied.
*/
public function RAW_val($field, $arguments = null, $cache = true) {
return Convert::xml2raw($this->XML_val($field, $arguments, $cache));
}
/**
* Returnt he value of a field in an SQL-safe format.
*/
public function SQL_val($field, $arguments = null, $cache = true) {
return Convert::xml2sql($this->XML_val($field, $arguments, $cache));
}
/**
* Return the value of a field in a JavaScript-save format.
*/
public function JS_val($field, $arguments = null, $cache = true) {
return Convert::xml2js($this->XML_val($field, $arguments, $cache));
}
/**
* Return the value of a field escaped suitable to be inserted into an XML node attribute.
*/
public function ATT_val($field, $arguments = null, $cache = true) {
return Convert::xml2att($this->XML_val($field, $arguments, $cache));
}
/**#@-*/
/**
* Get an array of XML-escaped values by field name
*
* @param array $elements an array of field names
* @return array
*/
public function getXMLValues($elementList) {
foreach($elementList as $elementName) {
$result[$elementName] = $this->XML_val($elementName);
public function getXMLValues($fields) {
$result = array();
foreach($fields as $field) {
$result[$field] = $this->XML_val($field);
}
return $result;
}
// ITERATOR SUPPORT ------------------------------------------------------------------------------------------------
/**
* Return the value of the given field without any escaping.
* @param string $fieldName The field name.
* @param array $args The arguments.
* @return string
* Return a single-item iterator so you can iterate over the fields of a single record.
*
* This is useful so you can use a single record inside a <% control %> block in a template - and then use
* to access individual fields on this object.
*
* @return ArrayIterator
*/
public function RAW_val($fieldName, $args = null) {
return Convert::xml2raw($this->XML_val($fieldName, $args));
public function getIterator() {
return new ArrayIterator(array($this));
}
/**
* Return the value of the given field in an SQL safe format.
* @param string $fieldName The field name.
* @param array $args The arguments.
* @return string
/**
* Set the current iterator properties - where we are on the iterator.
*
* @param int $pos position in iterator
* @param int $totalItems total number of items
*/
public function SQL_val($fieldName, $args = null) {
return Convert::xml2sql($this->XML_val($fieldName, $args));
}
/**
* Return the value of the given field in an JavaScript safe format.
* @param string $fieldName The field name.
* @param array $args The arguments.
* @return string
*/
public function JS_val($fieldName, $args = null) {
return Convert::xml2js($this->XML_val($fieldName, $args));
}
/**
* Return the value of the given field in an XML attribute safe format.
* @param string $fieldName The field name.
* @param array $args The arguments.
* @return string
*/
public function ATT_val($fieldName, $args = null) {
return Convert::xml2att($this->XML_val($fieldName, $args));
}
/**
* SSViewer's data-access method.
* All template calls to ViewableData are fed through this function. It takes care of caching
* data, and linking up parents to support Menu1_Menu2() syntax for nested data.
* @param string $funcName the method to call
* @param string $identifier
* @param array $args The arguments
* @return mixed
*/
function cachedCall($funcName, $identifier = null, $args = null) {
if(isset($_GET['debug_profile'])) {
Profiler::mark("template($funcName)", " on $this->class");
}
if(!$identifier) {
if($args) {
$identifier = $funcName . ',' . implode(',', $args);
} else {
$identifier = $funcName;
}
}
// Fix for PHP 5.3 - $args cannot be null
if(is_null($args))
$args=Array();
if(isset($this->_natural_cache[$identifier])) {
if(isset($_GET['debug_profile'])) {
Profiler::unmark("template($funcName)", " on $this->class");
}
return $this->_natural_cache[$identifier];
}
if($this->hasMethod($funcName)) {
$val = call_user_func_array(array(&$this, $funcName), $args);
} else {
$val = $this->$funcName;
}
$this->_natural_cache[$identifier] = $val;
if(is_object($val)) {
$this->_object_cache[$identifier] = $val;
} else {
$helperPair = $this->castingHelperPair($funcName);
$castedClass = $helperPair['className'];
if($castedClass && $castedClass != 'HTMLText' && $castedClass != 'HTMLVarchar' && $castedClass != 'Text') {
$val = Convert::raw2xml($val);
}
$this->_xml_cache[$identifier] = $val;
}
if(isset($_GET['debug_profile'])) {
Profiler::unmark("template($funcName)", " on $this->class");
}
return $val;
}
/**
* @param $obj ViewableData_Customised|ViewableData_ObjectCustomised
*/
function setCustomisedObj($obj) {
$this->customisedObj = $obj;
}
/**
* Returns true if the given method/parameter has a value
* If the item is an object, it will use the exists() method to determine existence
* @param string $funcName The function name.
* @param array $args The arguments.
* @return boolean
*/
function hasValue($funcName, $args = null) {
$test = $this->cachedCall($funcName, null, $args);
if(is_object($test)) {
return $test->exists();
} else if($test && $test !== '<p></p>') {
return true;
}
}
/**
* Set up the "iterator properties" for this object.
* These are properties that give information about where we are in the set.
* @param int $pos Position in iterator
* @param int $totalItems Total number of items
*/
function iteratorProperties($pos, $totalItems) {
$this->iteratorPos = $pos;
public function iteratorProperties($pos, $totalItems) {
$this->iteratorPos = $pos;
$this->iteratorTotalItems = $totalItems;
}
}
/**
* Returns true if this item is the first in the container set.
* @return boolean
* Returns true if this object is the first in a set.
*
* @return bool
*/
function First() {
public function First() {
return $this->iteratorPos == 0;
}
/**
* Returns true if this item is the last in the container set.
* @return boolean
* Returns true if this object is the last in a set.
*
* @return bool
*/
function Last() {
public function Last() {
return $this->iteratorPos == $this->iteratorTotalItems - 1;
}
/**
* Returns 'first' if this item is the first in the container set.
* Returns 'last' if this item is the last in the container set.
* Returns 'first' or 'last' if this is the first or last object in the set.
*
* @return string|null
*/
function FirstLast() {
if($this->iteratorPos == 0) {
return "first";
} else if($this->iteratorPos == $this->iteratorTotalItems - 1) {
return "last";
} else {
return "";
}
public function FirstLast() {
if($this->First()) return 'first';
if($this->Last()) return 'last';
}
/**
* Returns 'middle' if this item is between first and last.
* @return boolean
* Return true if this object is between the first & last objects.
*
* @return bool
*/
function MiddleString(){
if($this->Middle())
return "middle";
else
return "";
}
/**
* Returns true if this item is one of the middle items in the container set.
* @return boolean
*/
function Middle() {
return $this->iteratorPos > 0 && $this->iteratorPos < $this->iteratorTotalItems - 1;
}
/**
* Returns true if this item is an even item in the container set.
* @return boolean
*/
function Even() {
return (bool)($this->iteratorPos % 2);
public function Middle() {
return !$this->First() && !$this->Last();
}
/**
* Returns true if this item is an even item in the container set.
* @return boolean
* Return 'middle' if this object is between the first & last objects.
*
* @return string|null
*/
function Odd() {
return (bool)!$this->Even();
public function MiddleString() {
if($this->Middle()) return 'middle';
}
/**
* Returns 'even' if this item is an even item in the container set.
* Returns 'odd' if this item is an odd item in the container set.
* Return true if this object is an even item in the set.
*
* @return bool
*/
public function Even() {
return (bool) ($this->iteratorPos % 2);
}
/**
* Return true if this is an odd item in the set.
*
* @return bool
*/
public function Odd() {
return !$this->Even();
}
/**
* Return 'even' or 'odd' if this object is in an even or odd position in the set respectively.
*
* @return string
*/
function EvenOdd() {
return $this->Even() ? 'even' : 'odd';
public function EvenOdd() {
return ($this->Even()) ? 'even' : 'odd';
}
/**
* Returns the numerical number of this item in the dataset.
* The count starts from $startIndex, which defaults to 1.
* Return the numerical position of this object in the container set. The count starts at $startIndex.
*
* @param int $startIndex Number to start count from.
* @return int
*/
function Pos($startIndex = 1) {
public function Pos($startIndex = 1) {
return $this->iteratorPos + $startIndex;
}
/**
* Return the total number of "sibling" items in the dataset.
*
* @return int
*/
function TotalItems() {
public function TotalItems() {
return $this->iteratorTotalItems;
}
/**
* Returns the currently logged in user.
* @return Member
*/
function CurrentMember() {
return Member::currentUser();
}
// UTILITY METHODS -------------------------------------------------------------------------------------------------
/**
* Returns the Security ID.
* This is used to prevent CRSF attacks in forms.
* @return int
*/
function SecurityID() {
if(Session::get('SecurityID')) {
$securityID = Session::get('SecurityID');
} else {
$securityID = rand();
Session::set('SecurityID', $securityID);
}
return $securityID;
}
/**
* Checks if the current user has the given permission.
* Can be used to implement security-specific sections within templates
* @return int The Permission record-ID if the permission can be found, null otherwise
*/
function HasPerm($permCode) {
return Permission::check($permCode);
}
/**
* Add some arbitrary data to this viewabledata object. Returns a new object with the
* merged data.
* @param mixed $data The data to add.
* @return ViewableData
*/
function customise($data) {
if(is_array($data)) {
return new ViewableData_Customised($this, $data);
} else if(is_object($data)) {
return new ViewableData_ObjectCustomised($this, $data);
} else {
return $this;
}
}
/**
* Render this data using the given template, and return the result as a string
* You can pass one of the following:
* - A template name.
* - An array of template names. The first template that exists will be used.
* - An SSViewer object.
* @param string|array|SSViewer The template.
* @return string
*/
function renderWith($template, $params = null) {
if(!is_object($template)) {
$template = new SSViewer($template);
}
// if the object is already customised (e.g. through Controller->run()), use it
$obj = ($this->customisedObj) ? $this->customisedObj : $this;
if($params) $obj = $this->customise($params);
if(is_a($template,'SSViewer')) {
return $template->process($obj);
} else {
user_error("ViewableData::renderWith() Was passed a $template->class object instead of a SSViewer object", E_USER_ERROR);
}
}
/**
* Return the site's absolute base URL, with a slash on the end.
* @return string
*/
function BaseHref() {
return Director::absoluteBaseURL();
}
/**
* When rendering some objects it is necessary to iterate over the object being rendered, to
* do this, you need access to itself.
*
* @return ViewableData
*/
function Me() {
return $this;
}
/**
* Returns wether the current request is triggered
* by an XMLHTTPRequest object.
* When rendering some objects it is necessary to iterate over the object being rendered, to do this, you need
* access to itself.
*
* @return bool
*/
function IsAjax() {
return Director::is_ajax();
}
/**
* @return string Locale configured in environment settings or user profile (e.g. 'en_US')
*/
function i18nLocale() {
return i18n::get_locale();
}
/**
* Return a Debugger object.
* This is set up like so that you can put $Debug.Content into your template to get debugging
* information about $Content.
* @return ViewableData_Debugger
*/
function Debug() {
$d = new ViewableData_Debugger($this);
return $d->forTemplate();
}
/**
* Returns the current controller
* @return Controller
*/
function CurrentPage() {
return Controller::curr();
}
/**
* Returns the top level ViewableData being rendered.
* @return ViewableData
*/
function Top() {
return SSViewer::topLevel();
}
/**
* Returns the root directory of the theme we're working with.
* This can be useful for referencing images within the theme. For example, you might put a reference to
* <img src="$ThemeDir/images/something.gif"> in your template.
*
* If your image is within a subtheme, such as mytheme_forum, you can set the subtheme parameter. For example,
* <img src="$ThemeDir(forum)/images/something.gif">
*
* We don't recommend that you use this method when no theme is selected. That is, we recommend that you only put
* $ThemeDir into your theme templates. However, if no theme is selected, this will be the project folder/
*
* @param subtheme The subtheme name.
*/
public function ThemeDir($subtheme = null) {
$theme = SSViewer::current_theme();
if($theme) {
return "themes/$theme" . ($subtheme ? "_$subtheme" : "");
} else {
return project();
}
public function Me() {
return $this;
}
/**
* Get part of class ancestry for css-class-usage.
* Avoids having to subclass just to built templates with new css-classes,
* and allows for versatile css inheritance and overrides.
*
* <code>
* <body class="$CSSClasses">
* </code>
*
* @uses ClassInfo
*
* @param string Classname to stop traversing upwards the ancestry (Default: ViewableData)
* @return string space-separated attribute encoded classes
*/
function CSSClasses($stopAtClass = false) {
global $_ALL_CLASSES;
if(!$stopAtClass) $stopAtClass = 'ViewableData';
* Return the directory if the current active theme (relative to the site root).
*
* This method is useful for things such as accessing theme images from your template without hardcoding the theme
* page - e.g. <img src="$ThemeDir/images/something.gif">.
*
* This method should only be used when a theme is currently active. However, it will fall over to the current
* project directory.
*
* @param string $subtheme the subtheme path to get
* @return string
*/
public function ThemeDir($subtheme = false) {
if($theme = SSViewer::current_theme()) {
return THEMES_DIR . "/$theme" . ($subtheme ? "_$subtheme" : null);
}
$classes = array();
$classAnchestry = ClassInfo::ancestry($this->class);
$viewableDataAnchestry = ClassInfo::ancestry($stopAtClass);
foreach($classAnchestry as $anchestor) {
if(!in_array($anchestor, $viewableDataAnchestry)) $classes[] = $anchestor;
return project();
}
/**
* Get part of the current classes ancestry to be used as a CSS class.
*
* This method returns an escaped string of CSS classes representing the current classes ancestry until it hits a
* stop point - e.g. "Page DataObject ViewableData".
*
* @param string $stopAtClass the class to stop at (default: ViewableData)
* @return string
* @uses ClassInfo
*/
public function CSSClasses($stopAtClass = 'ViewableData') {
$classes = array();
$classAncestry = array_reverse(ClassInfo::ancestry($this->class));
$stopClasses = ClassInfo::ancestry($stopAtClass);
foreach($classAncestry as $class) {
if(in_array($class, $stopClasses)) break;
$classes[] = $class;
}
// optionally add template identifier
if(isset($this->template) && !in_array($this->template, $classes)) {
$classes[] = $this->template;
}
return Convert::raw2att(implode(" ", $classes));
return Convert::raw2att(implode(' ', $classes));
}
/**
* Object-casting information for class methods
* @var mixed
*/
public static $casting = array(
'BaseHref' => 'Varchar',
'CSSClasses' => 'Varchar',
);
/**
* Keep a record of the parent node of this data node.
* @var mixed
* @see Member::currentUser()
*/
protected $parent = null;
public function CurrentMember() {
return Member::currentUser();
}
/**
* Keep a record of the parent node of this data node.
* @var mixed
* Return a CSRF-preventing ID to insert into a form.
*
* @return string
*/
protected $namedAs = null;
public function SecurityID() {
if(!$id = Session::get('SecurityID')) {
$id = rand();
Session::set('SecurityID', $id);
}
return $id;
}
/**
* @see Permission::check()
*/
public function HasPerm($code) {
return Permission::check($code);
}
/**
* @see Director::absoluteBaseURL()
*/
public function BaseHref() {
return Director::absoluteBaseURL();
}
/**
* @see Director::is_ajax()
*/
public function IsAjax() {
return Director::is_ajax();
}
/**
* @see i18n::get_locale()
*/
public function i18nLocale() {
return i18n::get_locale();
}
/**
* Return debug information about this object that can be rendered into a template
*
* @return ViewableData_Debugger
*/
public function Debug() {
return new ViewableData_Debugger($this);
}
/**
* @see Controller::curr()
*/
public function CurrentPage() {
return Controller::curr();
}
/**
* @see SSViewer::topLevel()
*/
public function Top() {
return SSViewer::topLevel();
}
// DEPRECATED ------------------------------------------------------------------------------------------------------
/**
* @deprecated 2.3 use {@link ViewableData::XML_val()}
* @todo this cannot throw an error yet, as alot of core classes still use it
*/
public function val($field, $arguments = null) {
return $this->XML_val($field, $arguments);
}
}
/**
* A ViewableData object that has been customised with extra data. Use
* ViewableData->customise() to create.
* @package sapphire
* @subpackage view
*/
class ViewableData_Customised extends ViewableData {
public function castingHelperPair($field) {
return $this->obj->castingHelperPair($field);
}
/**
* @var ViewableData
*/
protected $original, $customised;
/**
* Instantiate a new customised ViewableData object
*
* @param ViewableData $originalObject
* @param ViewableData $customisedObject
*/
public function __construct(ViewableData $originalObject, ViewableData $customisedObject) {
$this->original = $originalObject;
$this->customised = $customisedObject;
function __construct($obj, $extraData) {
$this->obj = $obj;
$this->obj->setCustomisedObj($this);
$this->extraData = $extraData;
$this->original->setCustomisedObj($this);
parent::__construct();
}
function __call($funcName, $args) {
if(isset($this->extraData[$funcName])) {
return $this->extraData[$funcName];
} else {
return call_user_func_array(array(&$this->obj, $funcName), $args);
public function __call($method, $arguments) {
if($this->customised->hasMethod($method)) {
return call_user_func_array(array($this->customised, $method), $arguments);
}
}
function __get($fieldName) {
if(isset($this->extraData[$fieldName])) {
return $this->extraData[$fieldName];
}
return $this->obj->$fieldName;
}
function __set($fieldName, $val) {
if(isset($this->extraData[$fieldName])) unset($this->extraData[$fieldName]);
return $this->obj->$fieldName = $val;
}
function hasMethod($funcName) {
return isset($this->extraData[$funcName]) || $this->obj->hasMethod($funcName);
}
function XML_val($fieldName, $args = null, $cache = false) {
if(isset($this->extraData[$fieldName])) {
if(isset($_GET['debug_profile'])) {
Profiler::mark("template($fieldName)", " on $this->class object");
}
if(is_object($this->extraData[$fieldName])) {
$val = $this->extraData[$fieldName]->forTemplate();
} else {
$val = $this->extraData[$fieldName];
}
if(isset($_GET['debug_profile'])) {
Profiler::unmark("template($fieldName)", " on $this->class object");
}
return $val;
} else {
return $this->obj->XML_val($fieldName, $args, $cache);
}
}
function obj($fieldName, $args = null, $forceReturnObject = false) {
if(isset($this->extraData[$fieldName])) {
if(!is_object($this->extraData[$fieldName])) {
user_error("ViewableData_Customised::obj() '$fieldName' was requested from the array data as an object but it's not an object. I can't cast it.", E_USER_WARNING);
}
return $this->extraData[$fieldName];
} else {
return $this->obj->obj($fieldName, $args, $forceReturnObject);
}
}
function cachedCall($funcName, $identifier = null, $args = null) {
if(isset($this->extraData[$funcName])) {
return $this->extraData[$funcName];
} else {
return $this->obj->cachedCall($funcName, $identifier, $args);
}
}
function customise($data) {
if(is_array($data)) {
$this->extraData = array_merge($this->extraData, $data);
return $this;
} else {
return parent::customise($data);
}
}
/**
* Original ViewableData object
* @var ViewableDate
*/
protected $obj;
/**
* Array containing the extra data
* @var array
*/
protected $extraData;
}
/**
* A ViewableData object that has been customised with an extra object. Use
* ViewableData->customise() to create.
* @package sapphire
* @subpackage view
*/
class ViewableData_ObjectCustomised extends ViewableData {
function __construct($obj, $extraObj) {
$this->obj = $obj;
$this->extraObj = $extraObj;
$this->obj->setCustomisedObj($this);
parent::__construct();
return call_user_func_array(array($this->original, $method), $arguments);
}
function __call($funcName, $args) {
if($this->extraObj->hasMethod($funcName)) {
return call_user_func_array(array(&$this->extraObj, $funcName), $args);
} else {
return call_user_func_array(array(&$this->obj, $funcName), $args);
public function __get($property) {
if(isset($this->customised->$property)) {
return $this->customised->$property;
}
return $this->original->$property;
}
function __get($fieldName) {
if($this->extraObj->hasField($fieldName)) {
return $this->extraObj->$fieldName;
} else {
return $this->obj->$fieldName;
}
public function __set($property, $value) {
$this->customised->$property = $this->original->$property = $value;
}
function __set($fieldName, $val) {
$this->extraObj->$fieldName = $val;
$this->obj->$fieldName = $val;
public function hasMethod($method) {
return $this->customised->hasMethod($method) || $this->original->hasMethod($method);
}
function hasMethod($funcName) {
return $this->extraObj->hasMethod($funcName) || $this->obj->hasMethod($funcName);
}
function cachedCall($funcName, $identifier = null, $args = null) {
$result = $this->extraObj->cachedCall($funcName, $identifier, $args);
public function cachedCall($field, $arguments = null, $identifier = null) {
$result = $this->customised->cachedCall($field, $arguments, $identifier);
if(!$result) {
$result = $this->obj->cachedCall($funcName, $identifier, $args);
$result = $this->original->cachedCall($field, $arguments, $identifier);
}
return $result;
}
function obj($fieldName, $args = null, $forceReturnObject = false) {
if($this->extraObj->hasMethod($fieldName) || $this->extraObj->hasField($fieldName)) {
return $this->extraObj->obj($fieldName, $args, $forceReturnObject);
} else {
return $this->obj->obj($fieldName, $args, $forceReturnObject);
public function obj($fieldName, $arguments = null, $forceReturnedObject = true, $cache = false, $cacheName = null) {
if($this->customised->hasField($fieldName) || $this->customised->hasMethod($fieldName)) {
return $this->customised->obj($fieldName, $arguments, $forceReturnedObject, $cache, $cacheName);
}
return $this->original->obj($fieldName, $arguments, $forceReturnedObject, $cache, $cacheName);
}
/**
* The extra object.
* @var ViewableData
*/
protected $extraObj;
/**
* The original object.
* @var ViewableData
*/
protected $obj;
}
/**
* Debugger helper.
* Allows you to render debug information about a {@link ViewableData} object into a template.
*
* @package sapphire
* @subpackage view
* @todo Finish this off
*/
class ViewableData_Debugger extends ViewableData {
/**
* The original object
* @var ViewableData
*/
protected $obj;
protected $object;
function __construct($obj) {
$this->obj = $obj;
/**
* @param ViewableData $object
*/
public function __construct(ViewableData $object) {
$this->object = $object;
parent::__construct();
}
/**
* Return debugging information, as XHTML. If a field name is passed,
* it will show debugging information on that field, otherwise it will show
* information on all methods and fields.
* @var string $field The field name.
* Return debugging information, as XHTML. If a field name is passed, it will show debugging information on that
* field, otherwise it will show information on all methods and fields.
*
* @param string $field the field name
* @return string
*/
function forTemplate($field = null) {
if($field) {
return "<b>Info on $field:<br/>" .
($this->obj->hasMethod($field) ? "Has method '$field'. " : "") .
($this->obj->hasField($field) ? "Has field '$field'. " : "");
} else {
echo "<b>Debug: all methods available in {$this->obj->class}</b><br/>";
echo "<ul>";
$names = $this->obj->allMethodNames();
foreach($names as $name) {
if(strtoupper($name[0]) == $name[0] && $name[0] != "_") {
echo "<li>\$$name</li>";
public function forTemplate($field = null) {
// debugging info for a specific field
if($field) return "<b>Debugging Information for {$this->class}->{$field}</b><br/>" .
($this->object->hasMethod($field)? "Has method '$field'<br/>" : null) .
($this->object->hasField($field) ? "Has field '$field'<br/>" : null) ;
// debugging information for the entire class
$reflector = new ReflectionObject($this->object);
$debug = "<b>Debugging Information: all methods available in '{$this->object->class}'</b><br/><ul>";
foreach($this->object->allMethodNames() as $method) {
// check that the method is public
if($method[0] === strtoupper($method[0]) && $method[0] != '_') {
if($reflector->hasMethod($method) && $method = $reflector->getMethod($method)) {
if($method->isPublic()) {
$debug .= "<li>\${$method->getName()}";
if(count($method->getParameters())) {
$debug .= ' <small>(' . implode(', ', $method->getParameters()) . ')</small>';
}
$debug .= '</li>';
}
} else {
$debug .= "<li>\$$method</li>";
}
}
echo "</ul>";
if($this->obj->hasMethod('getAllFields')) {
echo "<b>Debug: all fields available in {$this->obj->class}</b><br/>";
echo "<ul>";
$data = $this->obj->getAllFields();
foreach($data as $key => $val) {
echo "<li>\$$key</li>";
}
echo "</ul>";
}
}
if($this->obj->hasMethod('data')) {
if($this->obj->data() != $this->obj) {
$d = new ViewableData_Debugger($this->obj->data());
echo $d->forTemplate();
$debug .= '</ul>';
if($this->object->hasMethod('getAllFields')) {
$debug .= "<b>Debugging Information: all fields available in '{$this->object->class}'</b><br/><ul>";
foreach($this->object->getAllFields() as $field => $value) {
$debug .= "<li>\$$field</li>";
}
$debug .= "</ul>";
}
// check for an extra attached data
if($this->object->hasMethod('data') && $this->object->data() != $this->object) {
$debug .= Object::create('ViewableData_Debugger', $this->object->data())->forTemplate();
}
return $debug;
}
}
/**
* Implementation of a "1 record iterator"
* Views <%control %> tags operate by looping over an item for as many instances as are
* available. When you stick a single ViewableData object in a control tag, the foreach()
* loop still needs to work. We do this by creating an iterator that only returns one record.
* This will always return the current ViewableData object.
*/
class ViewableData_Iterator implements Iterator {
function __construct($viewableData) {
$this->viewableData = $viewableData;
$this->show = true;
}
/**
* Internal state toggler
* @var bool
*/
private $show;
/**
* This will always return the current ViewableData object.
*/
public function current() {
if($this->show) {
return $this->viewableData;
}
}
/**
* Rewinds the iterator back to the start.
*/
public function rewind() {
$this->show = true;
}
/**
* Return the key for the current object.
*/
public function key() {
return 0;
}
/**
* Get the next object.
*/
public function next() {
if($this->show) {
$this->show = false;
return $this->viewableData;
} else {
return null;
}
}
/**
* Check if there is a current object.
*/
public function valid() {
return $this->show;
}
}
?>

5
core/model/DataObject.php Normal file → Executable file
View File

@ -90,6 +90,11 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
$cache_has_own_table = array(),
$cache_has_own_table_field = array();
public static $casting_properties = array (
'db',
'casting'
);
/**
* True if this DataObject has been destroyed.
* @var boolean

21
core/model/fieldtypes/DBField.php Normal file → Executable file
View File

@ -23,6 +23,13 @@ abstract class DBField extends ViewableData {
protected $arrayValue;
/**
* The escape type for this field when inserted into a template - either "xml" or "raw".
*
* @var string
*/
public static $escape_type = 'raw';
/**
* Subclass of {@link SearchFilter} for usage in {@link defaultSearchFilter()}.
*
@ -104,6 +111,13 @@ abstract class DBField extends ViewableData {
return ($this->value);
}
/**
* @return bool
*/
public function exists() {
return $this->hasValue();
}
/**
* Return an encoding of the given value suitable
* for inclusion in a SQL statement. If necessary,
@ -155,8 +169,11 @@ abstract class DBField extends ViewableData {
$this->tableName = $tableName;
}
function forTemplate() {
return $this->value;
/**
* @return string
*/
public function forTemplate() {
return $this->XML();
}
function HTMLATT() {

12
core/model/fieldtypes/HTMLText.php
View File

@ -7,7 +7,9 @@
* @subpackage model
*/
class HTMLText extends Text {
public static $escape_type = 'xml';
/**
* Limit this field's content by a number of characters.
* This makes use of strip_tags() to avoid malforming the
@ -109,6 +111,14 @@ class HTMLText extends Text {
return $this->Summary();
}
public function forTemplate() {
return $this->value;
}
public function hasValue() {
return parent::hasValue() && $this->value != '<p></p>';
}
public function scaffoldFormField($title = null, $params = null) {
return new HtmlEditorField($this->name, $title);
}

10
core/model/fieldtypes/HTMLVarchar.php
View File

@ -8,6 +8,16 @@
*/
class HTMLVarchar extends Varchar {
public static $escape_type = 'xml';
public function forTemplate() {
return $this->value;
}
public function hasValue() {
return parent::hasValue() && $this->value != '<p></p>';
}
public function scaffoldFormField($title = null, $params = null) {
return new HtmlEditorField($this->name, $title, 1);
}

29
tests/DataObjectTest.php Normal file → Executable file
View File

@ -762,6 +762,33 @@ class DataObjectTest extends SapphireTest {
$this->assertEquals('DataObjectTest_Player', $d->ClassName);
}
public function testHasValue() {
$team = new DataObjectTest_Team();
$this->assertFalse($team->hasValue('Title', null, false));
$this->assertFalse($team->hasValue('DatabaseField', null, false));
$team->Title = 'hasValue';
$this->assertTrue($team->hasValue('Title', null, false));
$this->assertFalse($team->hasValue('DatabaseField', null, false));
$team->DatabaseField = '<p></p>';
$this->assertTrue($team->hasValue('Title', null, false));
$this->assertFalse (
$team->hasValue('DatabaseField', null, false),
'Test that a blank paragraph on a HTML field is not a valid value.'
);
$team->Title = '<p></p>';
$this->assertTrue (
$team->hasValue('Title', null, false),
'Test that an empty paragraph is a value for non-HTML fields.'
);
$team->DatabaseField = 'hasValue';
$this->assertTrue($team->hasValue('Title', null, false));
$this->assertTrue($team->hasValue('DatabaseField', null, false));
}
}
class DataObjectTest_Player extends Member implements TestOnly {
@ -779,7 +806,7 @@ class DataObjectTest_Team extends DataObject implements TestOnly {
static $db = array(
'Title' => 'Varchar',
'DatabaseField' => 'Varchar'
'DatabaseField' => 'HTMLVarchar'
);
static $has_one = array(

145
tests/ViewableDataTest.php Executable file
View File

@ -0,0 +1,145 @@
<?php
/**
* @package sapphire
* @subpackage tests
*/
class ViewableDataTest extends SapphireTest {
public function testRequiresCasting() {
$caster = new ViewableDataTest_Castable();
$this->assertTrue($caster->obj('alwaysCasted') instanceof ViewableDataTest_RequiresCasting);
$this->assertTrue($caster->obj('noCastingInformation') instanceof ViewableData_Caster);
$this->assertTrue($caster->obj('alwaysCasted', null, false) instanceof ViewableDataTest_RequiresCasting);
$this->assertFalse($caster->obj('noCastingInformation', null, false) instanceof ViewableData_Caster);
}
public function testCastingProperties() {
$caster = new ViewableData_CastingProperties();
$caster->buildCastingCache($cache);
$this->assertTrue(isset($cache['Foo']));
$this->assertEquals('Bar', $cache['Foo']['className']);
$this->assertEquals('Bar', $caster->castingClass('Foo'));
}
public function testCastingXMLVal() {
$caster = new ViewableDataTest_Castable();
$this->assertEquals('casted', $caster->XML_val('alwaysCasted'));
$this->assertEquals('noCastingInformation', $caster->XML_val('noCastingInformation'));
// test automatic escaping is only applied by casted classes
$this->assertEquals('<foo>', $caster->XML_val('unsafeXML'));
$this->assertEquals('&lt;foo&gt;', $caster->XML_val('castedUnsafeXML'));
}
public function testArrayCustomise() {
$viewableData = new ViewableDataTest_Castable();
$newViewableData = $viewableData->customise(array (
'test' => 'overwritten',
'alwaysCasted' => 'overwritten'
));
$this->assertEquals('test', $viewableData->XML_val('test'));
$this->assertEquals('casted', $viewableData->XML_val('alwaysCasted'));
$this->assertEquals('overwritten', $newViewableData->XML_val('test'));
$this->assertEquals('overwritten', $newViewableData->XML_val('alwaysCasted'));
}
public function testObjectCustomise() {
$viewableData = new ViewableDataTest_Castable();
$newViewableData = $viewableData->customise(new ViewableDataTest_RequiresCasting());
$this->assertEquals('test', $viewableData->XML_val('test'));
$this->assertEquals('casted', $viewableData->XML_val('alwaysCasted'));
$this->assertEquals('overwritten', $newViewableData->XML_val('test'));
$this->assertEquals('casted', $newViewableData->XML_val('alwaysCasted'));
}
}
/**#@+
* @ignore
*/
class ViewableDataTest_Castable extends ViewableData {
public static $default_cast = 'ViewableData_Caster';
public static $casting = array (
'alwaysCasted' => 'ViewableDataTest_RequiresCasting',
'castedUnsafeXML' => 'ViewableData_UnescaptedCaster'
);
public $test = 'test';
public function alwaysCasted() {
return 'alwaysCasted';
}
public function noCastingInformation() {
return 'noCastingInformation';
}
public function unsafeXML() {
return '<foo>';
}
public function castedUnsafeXML() {
return $this->unsafeXML();
}
}
class ViewableData_CastingProperties extends ViewableData {
public static $casting_properties = array (
'test'
);
public static $test = array (
'Foo' => 'Bar'
);
}
class ViewableDataTest_RequiresCasting extends ViewableData {
public $test = 'overwritten';
public function forTemplate() {
return 'casted';
}
public function setValue() {}
}
class ViewableData_UnescaptedCaster extends ViewableData {
protected $value;
public function setValue($value) {
$this->value = $value;
}
public function forTemplate() {
return Convert::raw2xml($this->value);
}
}
class ViewableData_Caster extends ViewableData {
public function forTemplate() {
return 'casted';
}
public function setValue() {}
}
/**#@-*/