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-rw-r--r--engine/lib/entities.php71
-rw-r--r--engine/lib/metadata.php122
-rw-r--r--engine/lib/sites.php12
3 files changed, 142 insertions, 63 deletions
diff --git a/engine/lib/entities.php b/engine/lib/entities.php
index 3896cd58f..a50567d9f 100644
--- a/engine/lib/entities.php
+++ b/engine/lib/entities.php
@@ -39,6 +39,8 @@ function invalidate_cache_for_entity($guid) {
$guid = (int)$guid;
unset($ENTITY_CACHE[$guid]);
+
+ elgg_get_metadata_cache()->clear($guid);
}
/**
@@ -606,12 +608,14 @@ function get_entity_as_row($guid) {
*
* @param stdClass $row The row of the entry in the entities table.
*
- * @return object|false
+ * @return ElggEntity|false
* @link http://docs.elgg.org/DataModel/Entities
* @see get_entity_as_row()
* @see add_subtype()
* @see get_entity()
* @access private
+ *
+ * @throws ClassException|InstallationException
*/
function entity_row_to_elggstar($row) {
if (!($row instanceof stdClass)) {
@@ -698,7 +702,7 @@ function get_entity($guid) {
// but that evaluates to a false positive for $guid = TRUE.
// This is a bit slower, but more thorough.
if (!is_numeric($guid) || $guid === 0 || $guid === '0') {
- return FALSE;
+ return false;
}
// Check local cache first
@@ -715,14 +719,23 @@ function get_entity($guid) {
$shared_cache = false;
}
}
+
+ // until ACLs in memcache, DB query is required to determine access
+ $entity_row = get_entity_as_row($guid);
+ if (!$entity_row) {
+ return false;
+ }
+
if ($shared_cache) {
- $new_entity = $shared_cache->load($guid);
- if ($new_entity) {
- return $new_entity;
+ $cached_entity = $shared_cache->load($guid);
+ // @todo store ACLs in memcache http://trac.elgg.org/ticket/3018#comment:3
+ if ($cached_entity) {
+ // @todo use ACL and cached entity access_id to determine if user can see it
+ return $cached_entity;
}
}
- $new_entity = entity_row_to_elggstar(get_entity_as_row($guid));
+ $new_entity = entity_row_to_elggstar($entity_row);
if ($new_entity) {
cache_entity($new_entity);
}
@@ -969,17 +982,25 @@ function elgg_get_entities(array $options = array()) {
$dt = get_data($query, $options['callback']);
if ($dt) {
- foreach ($dt as $entity) {
- // If a custom callback is provided, it could return something other than ElggEntity,
- // so we have to do an explicit check here.
- if ($entity instanceof ElggEntity) {
- cache_entity($entity);
+ // populate entity and metadata caches
+ $guids = array();
+ foreach ($dt as $item) {
+ // A custom callback could result in items that aren't ElggEntity's, so check for them
+ if ($item instanceof ElggEntity) {
+ cache_entity($item);
+ // plugins usually have only settings
+ if (!$item instanceof ElggPlugin) {
+ $guids[] = $item->guid;
+ }
}
}
// @todo Without this, recursive delete fails. See #4568
reset($dt);
- }
+ if ($guids) {
+ elgg_get_metadata_cache()->populateFromEntities($guids);
+ }
+ }
return $dt;
} else {
$total = get_data_row($query);
@@ -1153,7 +1174,7 @@ function elgg_get_entity_type_subtype_where_sql($table, $types, $subtypes, $pair
* best to provide in table.column format.
* @param NULL|array $guids Array of GUIDs.
*
- * @return false|str
+ * @return false|string
* @since 1.8.0
* @access private
*/
@@ -1202,7 +1223,7 @@ function elgg_get_guid_based_where_sql($column, $guids) {
* @param NULL|int $time_updated_upper Time updated upper limit
* @param NULL|int $time_updated_lower Time updated lower limit
*
- * @return FALSE|str FALSE on fail, string on success.
+ * @return FALSE|string FALSE on fail, string on success.
* @since 1.7.0
* @access private
*/
@@ -1304,7 +1325,7 @@ function elgg_list_entities(array $options = array(), $getter = 'elgg_get_entiti
* @param string $subtype The subtype of entity
* @param int $container_guid The container GUID that the entinties belong to
* @param int $site_guid The site GUID
- * @param str $order_by Order_by SQL order by clause
+ * @param string $order_by Order_by SQL order by clause
*
* @return array|false Either an array months as YYYYMM, or false on failure
*/
@@ -1649,7 +1670,7 @@ function delete_entity($guid, $recursive = true) {
* @param string $returnvalue Return value from previous hook
* @param array $params The parameters, passed 'guid' and 'varname'
*
- * @return void
+ * @return ElggMetadata|null
* @elgg_plugin_hook_handler volatile metadata
* @todo investigate more.
* @access private
@@ -1694,6 +1715,8 @@ function volatile_data_export_plugin_hook($hook, $entity_type, $returnvalue, $pa
* @elgg_event_handler export all
* @return mixed
* @access private
+ *
+ * @throws InvalidParameterException|InvalidClassException
*/
function export_entity_plugin_hook($hook, $entity_type, $returnvalue, $params) {
// Sanity check values
@@ -1736,6 +1759,8 @@ function export_entity_plugin_hook($hook, $entity_type, $returnvalue, $params) {
* @return ElggEntity the unsaved entity which should be populated by items.
* @todo Remove this.
* @access private
+ *
+ * @throws ClassException|InstallationException|ImportException
*/
function oddentity_to_elggentity(ODDEntity $element) {
$class = $element->getAttribute('class');
@@ -1807,6 +1832,8 @@ function oddentity_to_elggentity(ODDEntity $element) {
* @elgg_plugin_hook_handler import all
* @todo document
* @access private
+ *
+ * @throws ImportException
*/
function import_entity_plugin_hook($hook, $entity_type, $returnvalue, $params) {
$element = $params['element'];
@@ -1853,8 +1880,6 @@ function import_entity_plugin_hook($hook, $entity_type, $returnvalue, $params) {
* @link http://docs.elgg.org/Entities/AccessControl
*/
function can_edit_entity($entity_guid, $user_guid = 0) {
- global $CONFIG;
-
$user_guid = (int)$user_guid;
$user = get_entity($user_guid);
if (!$user) {
@@ -1978,7 +2003,7 @@ function get_entity_url($entity_guid) {
* @param string $entity_subtype The entity subtype
* @param string $function_name The function to register
*
- * @return true|false Depending on success
+ * @return bool Depending on success
* @see get_entity_url()
* @see ElggEntity::getURL()
* @since 1.8.0
@@ -2014,7 +2039,7 @@ function elgg_register_entity_url_handler($entity_type, $entity_subtype, $functi
* @param string $type The type of entity (object, site, user, group)
* @param string $subtype The subtype to register (may be blank)
*
- * @return true|false Depending on success
+ * @return bool Depending on success
* @see get_registered_entity_types()
* @link http://docs.elgg.org/Search
* @link http://docs.elgg.org/Tutorials/Search
@@ -2051,7 +2076,7 @@ function elgg_register_entity_type($type, $subtype = null) {
* @param string $type The type of entity (object, site, user, group)
* @param string $subtype The subtype to register (may be blank)
*
- * @return true|false Depending on success
+ * @return bool Depending on success
* @see elgg_register_entity_type()
*/
function unregister_entity_type($type, $subtype) {
@@ -2118,7 +2143,7 @@ function get_registered_entity_types($type = null) {
* @param string $type The type of entity (object, site, user, group)
* @param string $subtype The subtype (may be blank)
*
- * @return true|false Depending on whether or not the type has been registered
+ * @return bool Depending on whether or not the type has been registered
*/
function is_registered_entity_type($type, $subtype = null) {
global $CONFIG;
@@ -2318,7 +2343,7 @@ function entities_gc() {
/**
* Runs unit tests for the entity objects.
*
- * @param sting $hook unit_test
+ * @param string $hook unit_test
* @param string $type system
* @param mixed $value Array of tests
* @param mixed $params Params
diff --git a/engine/lib/metadata.php b/engine/lib/metadata.php
index 77fa30e41..f76c20f24 100644
--- a/engine/lib/metadata.php
+++ b/engine/lib/metadata.php
@@ -12,7 +12,7 @@
*
* @param stdClass $row An object from the database
*
- * @return stdClass or ElggMetadata
+ * @return stdClass|ElggMetadata
* @access private
*/
function row_to_elggmetadata($row) {
@@ -30,7 +30,7 @@ function row_to_elggmetadata($row) {
*
* @param int $id The id of the metadata object being retrieved.
*
- * @return false|ElggMetadata
+ * @return ElggMetadata|false FALSE if not found
*/
function elgg_get_metadata_from_id($id) {
return elgg_get_metastring_based_object_from_id($id, 'metadata');
@@ -64,7 +64,7 @@ function elgg_delete_metadata_by_id($id) {
* @param int $access_id Default is ACCESS_PRIVATE
* @param bool $allow_multiple Allow multiple values for one key. Default is FALSE
*
- * @return int/bool id of metadata or FALSE if failure
+ * @return int|false id of metadata or FALSE if failure
*/
function create_metadata($entity_guid, $name, $value, $value_type = '', $owner_guid = 0,
$access_id = ACCESS_PRIVATE, $allow_multiple = false) {
@@ -90,8 +90,6 @@ function create_metadata($entity_guid, $name, $value, $value_type = '', $owner_g
$access_id = (int)$access_id;
- $id = false;
-
$query = "SELECT * from {$CONFIG->dbprefix}metadata"
. " WHERE entity_guid = $entity_guid and name_id=" . add_metastring($name) . " limit 1";
@@ -106,34 +104,33 @@ function create_metadata($entity_guid, $name, $value, $value_type = '', $owner_g
} else {
// Support boolean types
if (is_bool($value)) {
- if ($value) {
- $value = 1;
- } else {
- $value = 0;
- }
+ $value = (int) $value;
}
// Add the metastrings
- $value = add_metastring($value);
- if (!$value) {
+ $value_id = add_metastring($value);
+ if (!$value_id) {
return false;
}
- $name = add_metastring($name);
- if (!$name) {
+ $name_id = add_metastring($name);
+ if (!$name_id) {
return false;
}
// If ok then add it
$query = "INSERT into {$CONFIG->dbprefix}metadata"
. " (entity_guid, name_id, value_id, value_type, owner_guid, time_created, access_id)"
- . " VALUES ($entity_guid, '$name','$value','$value_type', $owner_guid, $time, $access_id)";
+ . " VALUES ($entity_guid, '$name_id','$value_id','$value_type', $owner_guid, $time, $access_id)";
$id = insert_data($query);
if ($id !== false) {
$obj = elgg_get_metadata_from_id($id);
if (elgg_trigger_event('create', 'metadata', $obj)) {
+
+ elgg_get_metadata_cache()->save($entity_guid, $name, $value, $allow_multiple);
+
return $id;
} else {
elgg_delete_metadata_by_id($id);
@@ -175,6 +172,7 @@ function update_metadata($id, $name, $value, $value_type, $owner_guid, $access_i
}
if ($metabyname_memcache) {
+ // @todo fix memcache (name_id is not a property of ElggMetadata)
$metabyname_memcache->delete("{$md->entity_guid}:{$md->name_id}");
}
@@ -187,15 +185,9 @@ function update_metadata($id, $name, $value, $value_type, $owner_guid, $access_i
$access_id = (int)$access_id;
- $access = get_access_sql_suffix();
-
// Support boolean types (as integers)
if (is_bool($value)) {
- if ($value) {
- $value = 1;
- } else {
- $value = 0;
- }
+ $value = (int) $value;
}
// Add the metastring
@@ -216,6 +208,9 @@ function update_metadata($id, $name, $value, $value_type, $owner_guid, $access_i
$result = update_data($query);
if ($result !== false) {
+
+ elgg_get_metadata_cache()->save($md->entity_guid, $name, $value);
+
// @todo this event tells you the metadata has been updated, but does not
// let you do anything about it. What is needed is a plugin hook before
// the update that passes old and new values.
@@ -234,7 +229,7 @@ function update_metadata($id, $name, $value, $value_type, $owner_guid, $access_i
* associative arrays and there is no guarantee on the ordering in the array.
*
* @param int $entity_guid The entity to attach the metadata to
- * @param string $name_and_values Associative array - a value can be a string, number, bool
+ * @param array $name_and_values Associative array - a value can be a string, number, bool
* @param string $value_type 'text', 'integer', or '' for automatic detection
* @param int $owner_guid GUID of entity that owns the metadata
* @param int $access_id Default is ACCESS_PRIVATE
@@ -308,6 +303,8 @@ function elgg_delete_metadata(array $options) {
return false;
}
+ elgg_get_metadata_cache()->invalidateByOptions('delete', $options);
+
$options['metastring_type'] = 'metadata';
return elgg_batch_metastring_based_objects($options, 'elgg_batch_delete_callback', false);
}
@@ -328,6 +325,8 @@ function elgg_disable_metadata(array $options) {
return false;
}
+ elgg_get_metadata_cache()->invalidateByOptions('disable', $options);
+
$options['metastring_type'] = 'metadata';
return elgg_batch_metastring_based_objects($options, 'elgg_batch_disable_callback', false);
}
@@ -348,6 +347,8 @@ function elgg_enable_metadata(array $options) {
return false;
}
+ elgg_get_metadata_cache()->invalidateByOptions('enable', $options);
+
$options['metastring_type'] = 'metadata';
return elgg_batch_metastring_based_objects($options, 'elgg_batch_enable_callback');
}
@@ -449,16 +450,16 @@ function elgg_get_entities_from_metadata(array $options = array()) {
* This function is reused for annotations because the tables are
* exactly the same.
*
- * @param string $e_table Entities table name
- * @param string $n_table Normalized metastrings table name (Where entities,
+ * @param string $e_table Entities table name
+ * @param string $n_table Normalized metastrings table name (Where entities,
* values, and names are joined. annotations / metadata)
- * @param arr|null $names Array of names
- * @param arr|null $values Array of values
- * @param arr|null $pairs Array of names / values / operands
- * @param and|or $pair_operator Operator to use to join the where clauses for pairs
- * @param bool $case_sensitive Case sensitive metadata names?
- * @param arr|null $order_by_metadata Array of names / direction
- * @param arr|null $owner_guids Array of owner GUIDs
+ * @param array|null $names Array of names
+ * @param array|null $values Array of values
+ * @param array|null $pairs Array of names / values / operands
+ * @param string $pair_operator ("AND" or "OR") Operator to use to join the where clauses for pairs
+ * @param bool $case_sensitive Case sensitive metadata names?
+ * @param array|null $order_by_metadata Array of names / direction
+ * @param array|null $owner_guids Array of owner GUIDs
*
* @return FALSE|array False on fail, array('joins', 'wheres')
* @since 1.7.0
@@ -732,6 +733,8 @@ function elgg_list_entities_from_metadata($options) {
*
* @return array
* @access private
+ *
+ * @throws InvalidParameterException
*/
function export_metadata_plugin_hook($hook, $entity_type, $returnvalue, $params) {
// Sanity check values
@@ -743,15 +746,13 @@ function export_metadata_plugin_hook($hook, $entity_type, $returnvalue, $params)
throw new InvalidParameterException(elgg_echo('InvalidParameterException:NonArrayReturnValue'));
}
- $guid = (int)$params['guid'];
- $name = $params['name'];
-
$result = elgg_get_metadata(array(
- 'guid' => $guid,
- 'limit' => 0
+ 'guid' => (int)$params['guid'],
+ 'limit' => 0,
));
if ($result) {
+ /* @var ElggMetadata[] $result */
foreach ($result as $r) {
$returnvalue[] = $r->export();
}
@@ -889,6 +890,50 @@ function elgg_register_metadata_url_handler($extender_name, $function) {
return elgg_register_extender_url_handler('metadata', $extender_name, $function);
}
+/**
+ * Get the global metadata cache instance
+ *
+ * @return ElggVolatileMetadataCache
+ *
+ * @access private
+ */
+function elgg_get_metadata_cache() {
+ global $CONFIG;
+ if (empty($CONFIG->local_metadata_cache)) {
+ $CONFIG->local_metadata_cache = new ElggVolatileMetadataCache();
+ }
+ return $CONFIG->local_metadata_cache;
+}
+
+/**
+ * Invalidate the metadata cache based on options passed to various *_metadata functions
+ *
+ * @param string $action Action performed on metadata. "delete", "disable", or "enable"
+ *
+ * @param array $options Options passed to elgg_(delete|disable|enable)_metadata
+ */
+function elgg_invalidate_metadata_cache($action, array $options) {
+ // remove as little as possible, optimizing for common cases
+ $cache = elgg_get_metadata_cache();
+ if (empty($options['guid'])) {
+ // safest to clear everything unless we want to make this even more complex :(
+ $cache->flush();
+ } else {
+ if (empty($options['metadata_name'])) {
+ // safest to clear the whole entity
+ $cache->clear($options['guid']);
+ } else {
+ switch ($action) {
+ case 'delete':
+ $cache->markEmpty($options['guid'], $options['metadata_name']);
+ break;
+ default:
+ $cache->markUnknown($options['guid'], $options['metadata_name']);
+ }
+ }
+ }
+}
+
/** Register the hook */
elgg_register_plugin_hook_handler("export", "all", "export_metadata_plugin_hook", 2);
@@ -912,5 +957,6 @@ elgg_register_plugin_hook_handler('unit_test', 'system', 'metadata_test');
function metadata_test($hook, $type, $value, $params) {
global $CONFIG;
$value[] = $CONFIG->path . 'engine/tests/api/metadata.php';
+ $value[] = $CONFIG->path . 'engine/tests/api/metadata_cache.php';
return $value;
-} \ No newline at end of file
+}
diff --git a/engine/lib/sites.php b/engine/lib/sites.php
index 850092cad..8b772668d 100644
--- a/engine/lib/sites.php
+++ b/engine/lib/sites.php
@@ -18,11 +18,19 @@
function elgg_get_site_entity($site_guid = 0) {
global $CONFIG;
+ $result = false;
+
if ($site_guid == 0) {
- return $CONFIG->site;
+ $site = $CONFIG->site;
+ } else {
+ $site = get_entity($site_guid);
+ }
+
+ if($site instanceof ElggSite){
+ $result = $site;
}
- return get_entity($site_guid);
+ return $result;
}
/**