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<?php |
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/** |
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* Elgg annotations |
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* Functions to manage object annotations. |
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*/ |
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/** |
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* Get a specific annotation by its id. |
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* If you want multiple annotation objects, use |
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* {@link elgg_get_annotations()}. |
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* |
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* @param int $id The id of the annotation object being retrieved. |
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* |
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* @return \ElggAnnotation|false |
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*/ |
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function elgg_get_annotation_from_id($id) { |
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return _elgg_services()->annotationsTable->get($id); |
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} |
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/** |
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* Deletes an annotation using its ID. |
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* |
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* @param int $id The annotation ID to delete. |
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* |
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* @return bool |
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*/ |
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function elgg_delete_annotation_by_id($id) { |
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$annotation = elgg_get_annotation_from_id($id); |
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if (!$annotation) { |
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return false; |
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} |
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return $annotation->delete(); |
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} |
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/** |
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* Fetch annotations or perform a calculation on them |
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* |
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* Accepts all options supported by {@link elgg_get_entities()} |
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* |
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* The default 'order_by' is 'n_table.time_created, n_table.id', |
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* |
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* @see elgg_get_entities() |
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* |
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* @param array $options Options |
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* |
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* @return \ElggAnnotation[]|mixed |
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* |
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* @see elgg_get_entities() |
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* @since 1.8.0 |
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*/ |
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function elgg_get_annotations(array $options = []) { |
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return _elgg_services()->annotationsTable->find($options); |
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} |
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/** |
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* Returns a rendered list of annotations with pagination. |
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* |
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* @param array $options Annotation getter and display options. |
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* {@link elgg_get_annotations()} and {@link elgg_list_entities()}. |
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* |
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* @return string The list of entities |
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* @since 1.8.0 |
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*/ |
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function elgg_list_annotations($options) { |
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$defaults = [ |
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'limit' => 25, |
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'offset' => (int) max(get_input('annoff', 0), 0), |
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'no_results' => '', |
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]; |
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$options = array_merge($defaults, $options); |
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return elgg_list_entities($options, 'elgg_get_annotations', 'elgg_view_annotation_list'); |
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} |
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/** |
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* Deletes annotations based on $options. |
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* |
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* @warning Unlike elgg_get_annotations() this will not accept an empty options array! |
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* This requires at least one constraint: annotation_owner_guid(s), |
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* annotation_name(s), annotation_value(s), or guid(s) must be set. |
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* |
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* @param array $options An options array. {@link elgg_get_annotations()} |
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* @return bool|null true on success, false on failure, null if no annotations to delete. |
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* @since 1.8.0 |
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*/ |
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function elgg_delete_annotations(array $options) { |
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return _elgg_services()->annotationsTable->deleteAll($options); |
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} |
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/** |
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* Disables annotations based on $options. |
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* |
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* @warning Unlike elgg_get_annotations() this will not accept an empty options array! |
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* |
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* @param array $options An options array. {@link elgg_get_annotations()} |
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* @return bool|null true on success, false on failure, null if no annotations disabled. |
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* @since 1.8.0 |
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*/ |
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function elgg_disable_annotations(array $options) { |
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return _elgg_services()->annotationsTable->disableAll($options); |
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} |
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/** |
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* Enables annotations based on $options. |
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* |
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* @warning Unlike elgg_get_annotations() this will not accept an empty options array! |
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* |
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* @warning In order to enable annotations, you must first use |
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* {@link access_show_hidden_entities()}. |
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* |
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* @param array $options An options array. {@link elgg_get_annotations()} |
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* @return bool|null true on success, false on failure, null if no metadata enabled. |
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* @since 1.8.0 |
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*/ |
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function elgg_enable_annotations(array $options) { |
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return _elgg_services()->annotationsTable->enableAll($options); |
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} |
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/** |
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* Check to see if a user has already created an annotation on an object |
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* |
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* @param int $entity_guid Entity guid |
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* @param string $name Annotation name |
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* @param int $owner_guid Defaults to logged in user. |
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* |
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* @return bool |
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* @since 1.8.0 |
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*/ |
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function elgg_annotation_exists($entity_guid, $name, $owner_guid = null) { |
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if (!$owner_guid) { |
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$owner_guid = elgg_get_logged_in_user_guid(); |
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} |
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return _elgg_services()->annotationsTable->exists($entity_guid, $name, $owner_guid); |
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} |
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/** |
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* Set the URL for a comment when called from a plugin hook |
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* |
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* @param string $hook Hook name |
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* @param string $type Hook type |
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* @param string $url URL string |
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* @param array $params Parameters of the hook |
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* @return string |
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* @access private |
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*/ |
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function _elgg_set_comment_url($hook, $type, $url, $params) { |
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$annotation = $params['extender']; |
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/* @var \ElggExtender $annotation */ |
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if ($annotation->getSubtype() == 'generic_comment') { |
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$entity = $annotation->getEntity(); |
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if ($entity) { |
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return $entity->getURL() . '#item-annotation-' . $annotation->id; |
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} |
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} |
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} |
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/** |
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* Register annotation unit tests |
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* |
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* @param string $hook 'unit_test' |
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* @param string $type 'system' |
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* @param array $tests current return value |
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* |
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* @return array |
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* |
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* @access private |
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* @codeCoverageIgnore |
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*/ |
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function _elgg_annotations_test($hook, $type, $tests) { |
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$tests[] = ElggCoreAnnotationAPITest::class; |
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return $tests; |
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} |
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/** |
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* Initialize the annotation library |
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* |
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* @return void |
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* |
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* @access private |
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*/ |
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function _elgg_annotations_init() { |
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elgg_register_plugin_hook_handler('extender:url', 'annotation', '_elgg_set_comment_url'); |
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elgg_register_plugin_hook_handler('unit_test', 'system', '_elgg_annotations_test'); |
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} |
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/** |
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* @see \Elgg\Application::loadCore Do not do work here. Just register for events. |
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*/ |
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return function(\Elgg\EventsService $events, \Elgg\HooksRegistrationService $hooks) { |
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$events->registerHandler('init', 'system', '_elgg_annotations_init'); |
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}; |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
integer
values, zero is a special case, in particular the following results might be unexpected: