Standardized gobs of files.

git-svn-id: http://code.elgg.org/elgg/trunk@3548 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 435 insertions, 416 deletions

diff --git a/engine/lib/extender.php b/engine/lib/extender.php
index 456a1f778..cbcdd6eb7 100644
--- a/engine/lib/extender.php
+++ b/engine/lib/extender.php
@@ -1,450 +1,469 @@
 <?php
+/**
+ * Elgg Entity Extender.
+ * This file contains ways of extending an Elgg entity in custom ways.
+ *
+ * @package Elgg
+ * @subpackage Core
+ * @author Curverider Ltd
+ * @link http://elgg.org/
+ */
+
+/**
+ * ElggExtender
+ *
+ * @author Curverider Ltd
+ * @package Elgg
+ * @subpackage Core
+ */
+abstract class ElggExtender implements
+	Exportable,
+	Loggable,	// Can events related to this object class be logged
+	Iterator,	// Override foreach behaviour
+	ArrayAccess // Override for array access
+{
 	/**
-	 * Elgg Entity Extender.
-	 * This file contains ways of extending an Elgg entity in custom ways.
-	 * 
-	 * @package Elgg
-	 * @subpackage Core
-	 * @author Curverider Ltd
-	 * @link http://elgg.org/
+	 * This contains the site's main properties (id, etc)
+	 * @var array
 	 */
+	protected $attributes;
 
 	/**
-	 * ElggExtender 
-	 * 
-	 * @author Curverider Ltd
-	 * @package Elgg
-	 * @subpackage Core
+	 * Get an attribute
+	 *
+	 * @param string $name
+	 * @return mixed
 	 */
-	abstract class ElggExtender implements 
-		Exportable,
-		Loggable,	// Can events related to this object class be logged
-		Iterator,	// Override foreach behaviour
-		ArrayAccess // Override for array access
-	{
-		/**
-		 * This contains the site's main properties (id, etc)
-		 * @var array
-		 */
-		protected $attributes;
-		
-		/**
-		 * Get an attribute
-		 *
-		 * @param string $name
-		 * @return mixed
-		 */
-		protected function get($name) {
-			if (isset($this->attributes[$name])) {
-				
-				// Sanitise value if necessary
-				if ($name=='value')
-				{
-					switch ($this->attributes['value_type'])
-					{
-						case 'integer' :  return (int)$this->attributes['value'];
-						//case 'tag' :
-						//case 'file' :
-						case 'text' : return ($this->attributes['value']);
-							
-						default : throw new InstallationException(sprintf(elgg_echo('InstallationException:TypeNotSupported'), $this->attributes['value_type']));
-					}
+	protected function get($name) {
+		if (isset($this->attributes[$name])) {
+			// Sanitise value if necessary
+			if ($name=='value') {
+				switch ($this->attributes['value_type']) {
+					case 'integer' :
+						return (int)$this->attributes['value'];
+
+					//case 'tag' :
+					//case 'file' :
+					case 'text' :
+						return ($this->attributes['value']);
+
+					default :
+						throw new InstallationException(sprintf(elgg_echo('InstallationException:TypeNotSupported'), $this->attributes['value_type']));
 				}
-				
-				return $this->attributes[$name];
 			}
-			return null;
-		}
-		
-		/**
-		 * Set an attribute
-		 *
-		 * @param string $name
-		 * @param mixed $value
-		 * @param string $value_type
-		 * @return boolean
-		 */
-		protected function set($name, $value, $value_type = "") {
-
-			$this->attributes[$name] = $value;
-			if ($name == 'value')
-				$this->attributes['value_type'] = detect_extender_valuetype($value, $value_type);
-			
-			return true;
-		}	
-		
-		/**
-		 * Return the owner of this annotation.
-		 *
-		 * @return mixed
-		 */
-		public function getOwner() 
-		{ 
-			return $this->owner_guid; 
-		}
 
-		/**
-		 * Return the owner entity
-		 *
-		 * @return mixed
-		 */
-		public function getOwnerEntity()
-		{
-			return get_user($this->owner_guid);
+			return $this->attributes[$name];
 		}
-		
-		/**
-		 * Returns the entity this is attached to
-		 *
-		 * @return ElggEntity The enttiy
-		 */
-		public function getEntity() {
-			return get_entity($this->entity_guid);
-		}
-		
-		/**
-		 * Save this data to the appropriate database table.
-		 */
-		abstract public function save();
-		
-		/**
-		 * Delete this data.
-		 */
-		abstract public function delete();
-		
-		/**
-		 * Determines whether or not the specified user can edit this
-		 *
-		 * @param int $user_guid The GUID of the user (defaults to currently logged in user)
-		 * @return true|false
-		 */
-		public function canEdit($user_guid = 0) {
-			return can_edit_extender($this->id,$this->type,$user_guid);
-		}
-		
-		/**
-		 * Return a url for this extender.
-		 *
-		 * @return string
-		 */
-		public abstract function getURL();
-		
-		// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
-		
-		/**
-		 * Return an array of fields which can be exported.
-		 */
-		public function getExportableValues()
-		{
-			return array(
-				'id',
-				'entity_guid',
-				'name',
-				'value',
-				'value_type',
-				'owner_guid', 
-				'type',
-			);
-		}
-		
-		/**
-		 * Export this object
-		 *
-		 * @return array
-		 */
-		public function export()
-		{
-			$uuid = get_uuid_from_object($this);
-			
-			$meta = new ODDMetadata($uuid, guid_to_uuid($this->entity_guid), $this->attributes['name'], $this->attributes['value'], $this->attributes['type'], guid_to_uuid($this->owner_guid));
-			$meta->setAttribute('published', date("r", $this->time_created));
-			
-			return $meta;
-		}
-		
-		// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
-		
-		/**
-		 * Return an identification for the object for storage in the system log. 
-		 * This id must be an integer.
-		 * 
-		 * @return int 
-		 */
-		public function getSystemLogID() { return $this->id; }
-		
-		/**
-		 * Return the class name of the object.
-		 */
-		public function getClassName() { return get_class($this); }
-		
-		/**
-		 * Return the GUID of the owner of this object.
-		 */
-		public function getObjectOwnerGUID() { return $this->owner_guid; }
-		
-		/**
-		 * Return a type of the object - eg. object, group, user, relationship, metadata, annotation etc
-		 */
-		public function getType() { return $this->type; }
-		
-		/**
-		 * Return a subtype. For metadata & annotations this is the 'name' and for relationship this is the relationship type.
-		 */
-		public function getSubtype() { return $this->name; }
-		
-		
-		// ITERATOR INTERFACE //////////////////////////////////////////////////////////////
-		/*
-		 * This lets an entity's attributes be displayed using foreach as a normal array.
-		 * Example: http://www.sitepoint.com/print/php5-standard-library
-		 */
-		
-		private $valid = FALSE; 
-		
-   		function rewind() 
-   		{ 
-   			$this->valid = (FALSE !== reset($this->attributes));  
-   		}
-   
-   		function current() 
-   		{ 
-   			return current($this->attributes); 
-   		}
-		
-   		function key() 
-   		{ 
-   			return key($this->attributes); 
-   		}
-		
-   		function next() 
-   		{
-   			$this->valid = (FALSE !== next($this->attributes));  
-   		}
-   		
-   		function valid() 
-   		{ 
-   			return $this->valid;  
-   		}
-	
-   		// ARRAY ACCESS INTERFACE //////////////////////////////////////////////////////////
-		/*
-		 * This lets an entity's attributes be accessed like an associative array.
-		 * Example: http://www.sitepoint.com/print/php5-standard-library
-		 */
-
-		function offsetSet($key, $value)
-		{
-   			if ( array_key_exists($key, $this->attributes) ) {
-     			$this->attributes[$key] = $value;
-   			}
- 		} 
- 		
- 		function offsetGet($key) 
- 		{
-   			if ( array_key_exists($key, $this->attributes) ) {
-     			return $this->attributes[$key];
-   			}
- 		} 
- 		
- 		function offsetUnset($key) 
- 		{
-   			if ( array_key_exists($key, $this->attributes) ) {
-     			$this->attributes[$key] = ""; // Full unsetting is dangerious for our objects
-   			}
- 		} 
- 		
- 		function offsetExists($offset) 
- 		{
-   			return array_key_exists($offset, $this->attributes);
- 		} 
-	}
-	
+		return null;
+	}
+
 	/**
-	 * Detect the value_type for a given value.
-	 * Currently this is very crude.
-	 * 
-	 * TODO: Make better!
+	 * Set an attribute
 	 *
+	 * @param string $name
 	 * @param mixed $value
-	 * @param string $value_type If specified, overrides the detection.
-	 * @return string
+	 * @param string $value_type
+	 * @return boolean
 	 */
-	function detect_extender_valuetype($value, $value_type = "")
-	{
-		if ($value_type!="")
-			return $value_type;
-			
-		// This is crude
-		if (is_int($value)) return 'integer';
-		if (is_numeric($value)) return 'text'; // Catch floating point values which are not integer
-		
-		return 'text';
+	protected function set($name, $value, $value_type = "") {
+		$this->attributes[$name] = $value;
+		if ($name == 'value') {
+			$this->attributes['value_type'] = detect_extender_valuetype($value, $value_type);
+		}
+
+		return true;
 	}
-	
+
 	/**
-	 * Utility function used by import_extender_plugin_hook() to process an ODDMetaData and add it to an entity.
-	 * This function does not hit ->save() on the entity (this lets you construct in memory)
+	 * Return the owner of this annotation.
 	 *
-	 * @param ElggEntity The entity to add the data to.
-	 * @param ODDMetaData $element The OpenDD element
-	 * @return bool
+	 * @return mixed
 	 */
-	function oddmetadata_to_elggextender(ElggEntity $entity, ODDMetaData $element)
-	{
-		// Get the type of extender (metadata, type, attribute etc)
-		$type = $element->getAttribute('type');
-		$attr_name = $element->getAttribute('name');
-		$attr_val = $element->getBody();
-
-		switch ($type)
-		{
-			case 'volatile' : break; // Ignore volatile items
-			case 'annotation' : 
-				$entity->annotate($attr_name, $attr_val);
-			break;
-			case 'metadata' :
-				$entity->setMetaData($attr_name, $attr_val, "", true);
-			break;
-			default : // Anything else assume attribute
-				$entity->set($attr_name, $attr_val);			
-		}
-		
-		// Set time if appropriate
-		$attr_time = $element->getAttribute('published');
-		if ($attr_time)
-			$entity->set('time_updated', $attr_time);
-			
-		return true;
+	public function getOwner() {
+		return $this->owner_guid;
 	}
-	
+
 	/**
-	 *  Handler called by trigger_plugin_hook on the "import" event.
+	 * Return the owner entity
+	 *
+	 * @return mixed
 	 */
-	function import_extender_plugin_hook($hook, $entity_type, $returnvalue, $params)
-	{
-		$element = $params['element'];
-		
-		$tmp = NULL;
-		
-		if ($element instanceof ODDMetaData)
-		{
-			// Recall entity
-			$entity_uuid = $element->getAttribute('entity_uuid');
-			$entity = get_entity_from_uuid($entity_uuid);
-			if (!$entity)
-				throw new ImportException(sprintf(elgg_echo('ImportException:GUIDNotFound'), $entity_uuid));
-			
-			oddmetadata_to_elggextender($entity, $element);
-	
-			// Save
-			if (!$entity->save())
-				throw new ImportException(sprintf(elgg_echo('ImportException:ProblemUpdatingMeta'), $attr_name, $entity_uuid));
-			
-			return true;
-		}
+	public function getOwnerEntity() {
+		return get_user($this->owner_guid);
+	}
+
+	/**
+	 * Returns the entity this is attached to
+	 *
+	 * @return ElggEntity The enttiy
+	 */
+	public function getEntity() {
+		return get_entity($this->entity_guid);
 	}
-	
+
 	/**
-	 * Determines whether or not the specified user can edit the specified piece of extender
+	 * Save this data to the appropriate database table.
+	 */
+	abstract public function save();
+
+	/**
+	 * Delete this data.
+	 */
+	abstract public function delete();
+
+	/**
+	 * Determines whether or not the specified user can edit this
 	 *
-	 * @param int $extender_id The ID of the piece of extender
-	 * @param string $type 'metadata' or 'annotation'
-	 * @param int $user_guid The GUID of the user
+	 * @param int $user_guid The GUID of the user (defaults to currently logged in user)
 	 * @return true|false
 	 */
-	function can_edit_extender($extender_id, $type, $user_guid = 0) {
-		
-		if (!isloggedin())
-			return false;
-		
-		$user_guid = (int)$user_guid;
-		$user = get_entity($user_guid);
-		if (!$user) $user = get_loggedin_user(); 
-
-		$functionname = "get_{$type}";
-		if (is_callable($functionname)) {
-			$extender = $functionname($extender_id);
-		} else return false;
-		
-		if (!is_a($extender,"ElggExtender")) return false;
-		
-		// If the owner is the specified user, great! They can edit.
-		if ($extender->getOwner() == $user->getGUID()) return true;
-		
-		// If the user can edit the entity this is attached to, great! They can edit.
-		if (can_edit_entity($extender->entity_guid,$user->getGUID())) return true;
-		
-		// Trigger plugin hooks
-		return trigger_plugin_hook('permissions_check',$type,array('entity' => $entity, 'user' => $user),false);
-		
-	}
-	
+	public function canEdit($user_guid = 0) {
+		return can_edit_extender($this->id,$this->type,$user_guid);
+	}
+
 	/**
-	 * Sets the URL handler for a particular extender type and name.
-	 * It is recommended that you do not call this directly, instead use one of the wrapper functions in the
-	 * subtype files.
+	 * Return a url for this extender.
 	 *
-	 * @param string $function_name The function to register
-	 * @param string $extender_type Extender type
-	 * @param string $extender_name The name of the extender
-	 * @return true|false Depending on success
+	 * @return string
 	 */
-	function register_extender_url_handler($function_name, $extender_type = "all", $extender_name = "all") {
-		global $CONFIG;
-		
-		if (!is_callable($function_name)) return false;
-		
-		if (!isset($CONFIG->extender_url_handler)) {
-			$CONFIG->extender_url_handler = array();
-		}
-		if (!isset($CONFIG->extender_url_handler[$extender_type])) {
-			$CONFIG->extender_url_handler[$extender_type] = array();
-		}
-		$CONFIG->extender_url_handler[$extender_type][$extender_name] = $function_name;
-		
-		return true;
-		
+	public abstract function getURL();
+
+	// EXPORTABLE INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an array of fields which can be exported.
+	 */
+	public function getExportableValues() {
+		return array(
+			'id',
+			'entity_guid',
+			'name',
+			'value',
+			'value_type',
+			'owner_guid',
+			'type',
+		);
 	}
-	
+
 	/**
-	 * Get the URL of a given elgg extender. 
-	 * Used by get_annotation_url and get_metadata_url.
+	 * Export this object
 	 *
-	 * @param ElggExtender $extender
+	 * @return array
 	 */
-	function get_extender_url(ElggExtender $extender)
-	{
-		global $CONFIG;
-		
-		$view = elgg_get_viewtype(); 
-			
-		$guid = $extender->entity_guid;
-		$type = $extender->type;
-		
-		$url = "";
-		
-		$function = "";
-		if (isset($CONFIG->extender_url_handler[$type][$extender->name]))
-			$function = $CONFIG->extender_url_handler[$type][$extender->name];
-		if (isset($CONFIG->extender_url_handler[$type]['all']))
-			$function = $CONFIG->extender_url_handler[$type]['all'];
-		if (isset($CONFIG->extender_url_handler['all']['all']))
-			$function = $CONFIG->extender_url_handler['all']['all'];
-			
-		if (is_callable($function)) {
-			$url = $function($extender);
+	public function export() {
+		$uuid = get_uuid_from_object($this);
+
+		$meta = new ODDMetadata($uuid, guid_to_uuid($this->entity_guid), $this->attributes['name'], $this->attributes['value'], $this->attributes['type'], guid_to_uuid($this->owner_guid));
+		$meta->setAttribute('published', date("r", $this->time_created));
+
+		return $meta;
+	}
+
+	// SYSTEM LOG INTERFACE ////////////////////////////////////////////////////////////
+
+	/**
+	 * Return an identification for the object for storage in the system log.
+	 * This id must be an integer.
+	 *
+	 * @return int
+	 */
+	public function getSystemLogID() {
+		return $this->id;
+	}
+
+	/**
+	 * Return the class name of the object.
+	 */
+	public function getClassName() {
+		return get_class($this);
+	}
+
+	/**
+	 * Return the GUID of the owner of this object.
+	 */
+	public function getObjectOwnerGUID() {
+		return $this->owner_guid;
+	}
+
+	/**
+	 * Return a type of the object - eg. object, group, user, relationship, metadata, annotation etc
+	 */
+	public function getType() {
+		return $this->type;
+	}
+
+	/**
+	 * Return a subtype. For metadata & annotations this is the 'name' and
+	 * for relationship this is the relationship type.
+	 */
+	public function getSubtype() {
+		return $this->name;
+	}
+
+
+	// ITERATOR INTERFACE //////////////////////////////////////////////////////////////
+	/*
+	 * This lets an entity's attributes be displayed using foreach as a normal array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+
+	private $valid = FALSE;
+
+	function rewind() {
+		$this->valid = (FALSE !== reset($this->attributes));
+	}
+
+	function current() {
+		return current($this->attributes);
+	}
+
+	function key() {
+		return key($this->attributes);
+	}
+
+	function next() {
+		$this->valid = (FALSE !== next($this->attributes));
+	}
+
+	function valid() {
+		return $this->valid;
+	}
+
+	// ARRAY ACCESS INTERFACE //////////////////////////////////////////////////////////
+	/*
+	 * This lets an entity's attributes be accessed like an associative array.
+	 * Example: http://www.sitepoint.com/print/php5-standard-library
+	 */
+
+	function offsetSet($key, $value) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			$this->attributes[$key] = $value;
+		}
+	}
+
+	function offsetGet($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			return $this->attributes[$key];
 		}
-		
-		if ($url == "") {
-			$nameid = $extender->id;
-			if ($type == 'volatile')
-				$nameid== $extender->name;
-			$url = $CONFIG->wwwroot  . "export/$view/$guid/$type/$nameid/";
-		} 
-		return $url;
-	}
-	
-	/** Register the hook */
-	register_plugin_hook("import", "all", "import_extender_plugin_hook", 2);
-	
-?>
+	}
+
+	function offsetUnset($key) {
+		if ( array_key_exists($key, $this->attributes) ) {
+			// Full unsetting is dangerious for our objects
+			$this->attributes[$key] = "";
+		}
+	}
+
+	function offsetExists($offset) {
+		return array_key_exists($offset, $this->attributes);
+	}
+}
+
+/**
+ * Detect the value_type for a given value.
+ * Currently this is very crude.
+ *
+ * TODO: Make better!
+ *
+ * @param mixed $value
+ * @param string $value_type If specified, overrides the detection.
+ * @return string
+ */
+function detect_extender_valuetype($value, $value_type = "") {
+	if ($value_type!="") {
+		return $value_type;
+	}
+
+	// This is crude
+	if (is_int($value)) {
+		return 'integer';
+	}
+	// Catch floating point values which are not integer
+	if (is_numeric($value)) {
+		return 'text';
+	}
+
+	return 'text';
+}
+
+/**
+ * Utility function used by import_extender_plugin_hook() to process an ODDMetaData and add it to an entity.
+ * This function does not hit ->save() on the entity (this lets you construct in memory)
+ *
+ * @param ElggEntity The entity to add the data to.
+ * @param ODDMetaData $element The OpenDD element
+ * @return bool
+ */
+function oddmetadata_to_elggextender(ElggEntity $entity, ODDMetaData $element) {
+	// Get the type of extender (metadata, type, attribute etc)
+	$type = $element->getAttribute('type');
+	$attr_name = $element->getAttribute('name');
+	$attr_val = $element->getBody();
+
+	switch ($type) {
+		// Ignore volatile items
+		case 'volatile' :
+			break;
+		case 'annotation' :
+			$entity->annotate($attr_name, $attr_val);
+			break;
+		case 'metadata' :
+			$entity->setMetaData($attr_name, $attr_val, "", true);
+			break;
+		default : // Anything else assume attribute
+			$entity->set($attr_name, $attr_val);
+	}
+
+	// Set time if appropriate
+	$attr_time = $element->getAttribute('published');
+	if ($attr_time) {
+		$entity->set('time_updated', $attr_time);
+	}
+
+	return true;
+}
+
+/**
+ *  Handler called by trigger_plugin_hook on the "import" event.
+ */
+function import_extender_plugin_hook($hook, $entity_type, $returnvalue, $params) {
+	$element = $params['element'];
+
+	$tmp = NULL;
+
+	if ($element instanceof ODDMetaData) {
+		// Recall entity
+		$entity_uuid = $element->getAttribute('entity_uuid');
+		$entity = get_entity_from_uuid($entity_uuid);
+		if (!$entity) {
+			throw new ImportException(sprintf(elgg_echo('ImportException:GUIDNotFound'), $entity_uuid));
+		}
+
+		oddmetadata_to_elggextender($entity, $element);
+
+		// Save
+		if (!$entity->save()) {
+			throw new ImportException(sprintf(elgg_echo('ImportException:ProblemUpdatingMeta'), $attr_name, $entity_uuid));
+		}
+
+		return true;
+	}
+}
+
+/**
+ * Determines whether or not the specified user can edit the specified piece of extender
+ *
+ * @param int $extender_id The ID of the piece of extender
+ * @param string $type 'metadata' or 'annotation'
+ * @param int $user_guid The GUID of the user
+ * @return true|false
+ */
+function can_edit_extender($extender_id, $type, $user_guid = 0) {
+	if (!isloggedin()) {
+		return false;
+	}
+
+	$user_guid = (int)$user_guid;
+	$user = get_entity($user_guid);
+	if (!$user) {
+		$user = get_loggedin_user();
+	}
+
+	$functionname = "get_{$type}";
+	if (is_callable($functionname)) {
+		$extender = $functionname($extender_id);
+	} else {
+		return false;
+	}
+
+	if (!is_a($extender,"ElggExtender")) {
+		return false;
+	}
+
+	// If the owner is the specified user, great! They can edit.
+	if ($extender->getOwner() == $user->getGUID()) {
+		return true;
+	}
+
+	// If the user can edit the entity this is attached to, great! They can edit.
+	if (can_edit_entity($extender->entity_guid,$user->getGUID())) {
+		return true;
+	}
+
+	// Trigger plugin hooks
+	return trigger_plugin_hook('permissions_check',$type,array('entity' => $entity, 'user' => $user),false);
+}
+
+/**
+ * Sets the URL handler for a particular extender type and name.
+ * It is recommended that you do not call this directly, instead use one of the wrapper functions in the
+ * subtype files.
+ *
+ * @param string $function_name The function to register
+ * @param string $extender_type Extender type
+ * @param string $extender_name The name of the extender
+ * @return true|false Depending on success
+ */
+function register_extender_url_handler($function_name, $extender_type = "all", $extender_name = "all") {
+	global $CONFIG;
+
+	if (!is_callable($function_name)) {
+		return false;
+	}
+
+	if (!isset($CONFIG->extender_url_handler)) {
+		$CONFIG->extender_url_handler = array();
+	}
+	if (!isset($CONFIG->extender_url_handler[$extender_type])) {
+		$CONFIG->extender_url_handler[$extender_type] = array();
+	}
+	$CONFIG->extender_url_handler[$extender_type][$extender_name] = $function_name;
+
+	return true;
+}
+
+/**
+ * Get the URL of a given elgg extender.
+ * Used by get_annotation_url and get_metadata_url.
+ *
+ * @param ElggExtender $extender
+ */
+function get_extender_url(ElggExtender $extender) {
+	global $CONFIG;
+
+	$view = elgg_get_viewtype();
+
+	$guid = $extender->entity_guid;
+	$type = $extender->type;
+
+	$url = "";
+
+	$function = "";
+	if (isset($CONFIG->extender_url_handler[$type][$extender->name])) {
+		$function = $CONFIG->extender_url_handler[$type][$extender->name];
+	}
+
+	if (isset($CONFIG->extender_url_handler[$type]['all'])) {
+		$function = $CONFIG->extender_url_handler[$type]['all'];
+	}
+
+	if (isset($CONFIG->extender_url_handler['all']['all'])) {
+		$function = $CONFIG->extender_url_handler['all']['all'];
+	}
+
+	if (is_callable($function)) {
+		$url = $function($extender);
+	}
+
+	if ($url == "") {
+		$nameid = $extender->id;
+		if ($type == 'volatile') {
+			$nameid== $extender->name;
+		}
+		$url = $CONFIG->wwwroot  . "export/$view/$guid/$type/$nameid/";
+	}
+	return $url;
+}
+
+/** Register the hook */
+register_plugin_hook("import", "all", "import_extender_plugin_hook", 2);
\ No newline at end of file