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-rw-r--r--engine/lib/relationships.php105
1 files changed, 59 insertions, 46 deletions
diff --git a/engine/lib/relationships.php b/engine/lib/relationships.php
index 5224efaf1..b0cd627fc 100644
--- a/engine/lib/relationships.php
+++ b/engine/lib/relationships.php
@@ -12,7 +12,8 @@
*
* @param stdClass $row Database row from the relationship table
*
- * @return stdClass or ElggMetadata
+ * @return ElggRelationship|stdClass
+ * @access private
*/
function row_to_elggrelationship($row) {
if (!($row instanceof stdClass)) {
@@ -27,7 +28,7 @@ function row_to_elggrelationship($row) {
*
* @param int $id The ID of a relationship
*
- * @return mixed
+ * @return ElggRelationship|false
*/
function get_relationship($id) {
global $CONFIG;
@@ -108,7 +109,7 @@ function add_entity_relationship($guid_one, $relationship, $guid_two) {
* @param string $relationship The type of relationship
* @param int $guid_two The GUID of the entity the relationship is with
*
- * @return object|false Depending on success
+ * @return ElggRelationship|false Depending on success
*/
function check_entity_relationship($guid_one, $relationship, $guid_two) {
global $CONFIG;
@@ -122,7 +123,7 @@ function check_entity_relationship($guid_one, $relationship, $guid_two) {
AND relationship='$relationship'
AND guid_two=$guid_two limit 1";
- $row = $row = get_data_row($query);
+ $row = row_to_elggrelationship(get_data_row($query));
if ($row) {
return $row;
}
@@ -157,7 +158,7 @@ function remove_entity_relationship($guid_one, $relationship, $guid_two) {
and relationship='$relationship'
and guid_two=$guid_two";
- return delete_data($query);
+ return (bool)delete_data($query);
} else {
return false;
}
@@ -219,7 +220,7 @@ function remove_entity_relationships($guid_one, $relationship = "", $inverse = f
* @param int $guid The GUID of the relationship owner
* @param bool $inverse_relationship Inverse relationship owners?
*
- * @return mixed
+ * @return ElggRelationship[]
*/
function get_entity_relationships($guid, $inverse_relationship = FALSE) {
global $CONFIG;
@@ -235,6 +236,20 @@ function get_entity_relationships($guid, $inverse_relationship = FALSE) {
/**
* Return entities matching a given query joining against a relationship.
+ * Also accepts all options available to elgg_get_entities() and
+ * elgg_get_entities_from_metadata().
+ *
+ * To ask for entities that do not have a particulat relationship to an entity,
+ * use a custom where clause like the following:
+ *
+ * $options['wheres'][] = "NOT EXISTS (
+ * SELECT 1 FROM {$db_prefix}entity_relationships
+ * WHERE guid_one = e.guid
+ * AND relationship = '$relationship'
+ * )";
+ *
+ * @see elgg_get_entities
+ * @see elgg_get_entities_from_metadata
*
* @param array $options Array in format:
*
@@ -244,7 +259,7 @@ function get_entity_relationships($guid, $inverse_relationship = FALSE) {
*
* inverse_relationship => BOOL Inverse the relationship
*
- * @return array
+ * @return ElggEntity[]|mixed If count, int. If not count, array. false on errors.
* @since 1.7.0
*/
function elgg_get_entities_from_relationship($options) {
@@ -284,7 +299,7 @@ function elgg_get_entities_from_relationship($options) {
$options['selects'] = array();
}
- $select = array('r.*');
+ $select = array('r.id');
$options['selects'] = array_merge($options['selects'], $select);
}
@@ -301,10 +316,11 @@ function elgg_get_entities_from_relationship($options) {
* Provide in table.column format.
* @param string $relationship Relationship string
* @param int $relationship_guid Entity guid to check
- * @param string $inverse_relationship Inverse relationship check?
+ * @param bool $inverse_relationship Inverse relationship check?
*
* @return mixed
* @since 1.7.0
+ * @access private
*/
function elgg_get_entity_relationship_where_sql($column, $relationship = NULL,
$relationship_guid = NULL, $inverse_relationship = FALSE) {
@@ -347,7 +363,7 @@ $relationship_guid = NULL, $inverse_relationship = FALSE) {
/**
* Returns a viewable list of entities by relationship
*
- * @param array $options
+ * @param array $options Options array for retrieval of entities
*
* @see elgg_list_entities()
* @see elgg_get_entities_from_relationship()
@@ -365,7 +381,7 @@ function elgg_list_entities_from_relationship(array $options = array()) {
*
* @param array $options An options array compatible with
* elgg_get_entities_from_relationship()
- * @return array
+ * @return ElggEntity[]|mixed int If count, int. If not count, array. false on errors.
* @since 1.8.0
*/
function elgg_get_entities_from_relationship_count(array $options = array()) {
@@ -382,7 +398,7 @@ function elgg_get_entities_from_relationship_count(array $options = array()) {
*
* @param array $options Options array
*
- * @return array
+ * @return string
* @since 1.8.0
*/
function elgg_list_entities_from_relationship_count($options) {
@@ -392,15 +408,15 @@ function elgg_list_entities_from_relationship_count($options) {
/**
* Sets the URL handler for a particular relationship type
*
- * @param string $function_name The function to register
* @param string $relationship_type The relationship type.
+ * @param string $function_name The function to register
*
* @return bool Depending on success
*/
function elgg_register_relationship_url_handler($relationship_type, $function_name) {
global $CONFIG;
- if (!is_callable($function_name)) {
+ if (!is_callable($function_name, true)) {
return false;
}
@@ -467,7 +483,8 @@ function get_relationship_url($id) {
* @param int $guid_two This is the object trying to attach to $guid_one
*
* @return bool
- **/
+ * @access private
+ */
function already_attached($guid_one, $guid_two) {
if ($attached = check_entity_relationship($guid_one, "attached", $guid_two)) {
return true;
@@ -482,14 +499,15 @@ function already_attached($guid_one, $guid_two) {
* @param int $guid Entity GUID
* @param string $type The type of object to return e.g. 'file', 'friend_of' etc
*
- * @return an array of objects
-**/
+ * @return ElggEntity[]
+ * @access private
+ */
function get_attachments($guid, $type = "") {
$options = array(
'relationship' => 'attached',
'relationship_guid' => $guid,
'inverse_relationship' => false,
- 'types' => $type,
+ 'type' => $type,
'subtypes' => '',
'owner_guid' => 0,
'order_by' => 'time_created desc',
@@ -509,7 +527,8 @@ function get_attachments($guid, $type = "") {
* @param int $guid_two This is the object to remove from $guid_one
*
* @return void
-**/
+ * @access private
+ */
function remove_attachment($guid_one, $guid_two) {
if (already_attached($guid_one, $guid_two)) {
remove_entity_relationship($guid_one, "attached", $guid_two);
@@ -523,7 +542,8 @@ function remove_attachment($guid_one, $guid_two) {
* @param int $guid_two This is the object trying to attach to $guid_one
*
* @return true|void
-**/
+ * @access private
+ */
function make_attachment($guid_one, $guid_two) {
if (!(already_attached($guid_one, $guid_two))) {
if (add_entity_relationship($guid_one, "attached", $guid_two)) {
@@ -541,7 +561,7 @@ function make_attachment($guid_one, $guid_two) {
* @param mixed $params Array of params
*
* @return mixed
- *
+ * @access private
*/
function import_relationship_plugin_hook($hook, $entity_type, $returnvalue, $params) {
$element = $params['element'];
@@ -551,9 +571,8 @@ function import_relationship_plugin_hook($hook, $entity_type, $returnvalue, $par
if ($element instanceof ODDRelationship) {
$tmp = new ElggRelationship();
$tmp->import($element);
-
- return $tmp;
}
+ return $tmp;
}
/**
@@ -566,10 +585,10 @@ function import_relationship_plugin_hook($hook, $entity_type, $returnvalue, $par
*
* @elgg_event_handler export all
* @return mixed
+ * @throws InvalidParameterException
+ * @access private
*/
function export_relationship_plugin_hook($hook, $entity_type, $returnvalue, $params) {
- global $CONFIG;
-
// Sanity check values
if ((!is_array($params)) && (!isset($params['guid']))) {
throw new InvalidParameterException(elgg_echo('InvalidParameterException:GUIDNotForExport'));
@@ -593,38 +612,32 @@ function export_relationship_plugin_hook($hook, $entity_type, $returnvalue, $par
}
/**
- * An event listener which will notify users based on certain events.
+ * Notify user that someone has friended them
*
- * @param string $event Event name
- * @param string $object_type Object type
- * @param mixed $object Object
+ * @param string $event Event name
+ * @param string $type Object type
+ * @param mixed $object Object
*
* @return bool
+ * @access private
*/
-function relationship_notification_hook($event, $object_type, $object) {
- global $CONFIG;
-
- if (
- ($object instanceof ElggRelationship) &&
- ($event == 'create') &&
- ($object_type == 'friend')
- ) {
- $user_one = get_entity($object->guid_one);
- $user_two = get_entity($object->guid_two);
+function relationship_notification_hook($event, $type, $object) {
+ /* @var ElggRelationship $object */
+ $user_one = get_entity($object->guid_one);
+ /* @var ElggUser $user_one */
- // Notify target user
- return notify_user($object->guid_two, $object->guid_one,
+ return notify_user($object->guid_two,
+ $object->guid_one,
elgg_echo('friend:newfriend:subject', array($user_one->name)),
elgg_echo("friend:newfriend:body", array($user_one->name, $user_one->getURL()))
- );
- }
+ );
}
-/** Register the import hook */
+// Register the import hook
elgg_register_plugin_hook_handler("import", "all", "import_relationship_plugin_hook", 3);
-/** Register the hook, ensuring entities are serialised first */
+// Register the hook, ensuring entities are serialised first
elgg_register_plugin_hook_handler("export", "all", "export_relationship_plugin_hook", 3);
-/** Register event to listen to some events **/
+// Register event to listen to some events
elgg_register_event_handler('create', 'friend', 'relationship_notification_hook');