1 files changed, 37 insertions, 12 deletions

diff --git a/engine/classes/ElggExtender.php b/engine/classes/ElggExtender.php
index 78ccea395..25aba354f 100644
--- a/engine/classes/ElggExtender.php
+++ b/engine/classes/ElggExtender.php
@@ -3,8 +3,7 @@
  * The base class for ElggEntity extenders.
  *
  * Extenders allow you to attach extended information to an
- * ElggEntity.  Core supports two: ElggAnnotation, ElggMetadata,
- * and ElggRelationship
+ * ElggEntity.  Core supports two: ElggAnnotation and ElggMetadata.
  *
  * Saving the extender data to database is handled by the child class.
  *
@@ -16,13 +15,28 @@
  * @link       http://docs.elgg.org/DataModel/Extenders
  * @see        ElggAnnotation
  * @see        ElggMetadata
+ * 
+ * @property string $type         annotation or metadata (read-only after save)
+ * @property int    $id           The unique identifier (read-only)
+ * @property int    $entity_guid  The GUID of the entity that this extender describes
+ * @property int    $access_id    Specifies the visibility level of this extender
+ * @property string $name         The name of this extender
+ * @property mixed  $value        The value of the extender (int or string)
+ * @property int    $time_created A UNIX timestamp of when the extender was created (read-only, set on first save)
  */
-abstract class ElggExtender extends ElggData
-{
+abstract class ElggExtender extends ElggData {
+
+	/**
+	 * (non-PHPdoc)
+	 *
+	 * @see ElggData::initializeAttributes()
+	 *
+	 * @return void
+	 */
 	protected function initializeAttributes() {
 		parent::initializeAttributes();
 
-		$this->attributes['type'] = '';
+		$this->attributes['type'] = NULL;
 	}
 
 	/**
@@ -33,7 +47,7 @@ abstract class ElggExtender extends ElggData
 	 * @return mixed
 	 */
 	protected function get($name) {
-		if (isset($this->attributes[$name])) {
+		if (array_key_exists($name, $this->attributes)) {
 			// Sanitise value if necessary
 			if ($name == 'value') {
 				switch ($this->attributes['value_type']) {
@@ -80,27 +94,38 @@ abstract class ElggExtender extends ElggData
 	}
 
 	/**
+	 * Get the GUID of the extender's owner entity.
+	 *
+	 * @return int The owner GUID
+	 */
+	public function getOwnerGUID() {
+		return $this->owner_guid;
+	}
+
+	/**
 	 * Return the guid of the entity's owner.
 	 *
 	 * @return int The owner GUID
+	 * @deprecated 1.8 Use getOwnerGUID
 	 */
 	public function getOwner() {
-		return $this->owner_guid;
+		elgg_deprecated_notice("ElggExtender::getOwner deprecated for ElggExtender::getOwnerGUID", 1.8);
+		return $this->getOwnerGUID();
 	}
 
 	/**
-	 * Returns the ElggEntity or child object of the owner of the entity.
+	 * Get the entity that owns this extender
 	 *
-	 * @return ElggEntity The owning user
+	 * @return ElggEntity
 	 */
 	public function getOwnerEntity() {
 		return get_entity($this->owner_guid);
 	}
 
 	/**
-	 * Return the entity this describes.
+	 * Get the entity this describes.
 	 *
-	 * @return ElggEntity The enttiy
+	 * @return ElggEntity The entity
 	 */
 	public function getEntity() {
 		return get_entity($this->entity_guid);
@@ -146,7 +171,7 @@ abstract class ElggExtender extends ElggData
 	public function export() {
 		$uuid = get_uuid_from_object($this);
 
-		$meta = new ODDMetadata($uuid, guid_to_uuid($this->entity_guid), $this->attributes['name'],
+		$meta = new ODDMetaData($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));