diff options
Diffstat (limited to 'engine/lib/objects.php')
| -rw-r--r-- | engine/lib/objects.php | 373 |
1 files changed, 120 insertions, 253 deletions
diff --git a/engine/lib/objects.php b/engine/lib/objects.php index 0a8dffc65..ff3cc733f 100644 --- a/engine/lib/objects.php +++ b/engine/lib/objects.php @@ -1,253 +1,120 @@ -<?php
-
- /**
- * Elgg objects
- * Functions to manage multiple or single objects in an Elgg install
- *
- * @package Elgg
- * @subpackage Core
- * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
- * @author Curverider Ltd
- * @copyright Curverider Ltd 2008
- * @link http://elgg.org/
- */
-
- /**
- * @class ElggObject
- * Representation of an "object" in the system.
- */
- class ElggObject extends ElggEntity
- {
- /**
- * Initialise the attributes array.
- * This is vital to distinguish between metadata and base parameters.
- *
- * Place your base parameters here.
- */
- protected function initialise_attributes()
- {
- parent::initialise_attributes();
-
- $this->attributes['type'] = "object";
- $this->attributes['title'] = "";
- $this->attributes['description'] = "";
-
-
- }
-
- /**
- * Construct a new object entity, optionally from a given id value.
- *
- * @param mixed $guid If an int, load that GUID.
- * If a db row then will attempt to load the rest of the data.
- * @throws Exception if there was a problem creating the object.
- */
- function __construct($guid = null)
- {
- $this->initialise_attributes();
-
- if (!empty($guid))
- {
- // Is $guid is a DB row - either a entity row, or a object table row.
- if ($guid instanceof stdClass) {
- // Load the rest
- $this->load($guid->guid);
- }
-
- // Is $guid is an ElggObject? Use a copy constructor
- else if ($guid instanceof ElggObject)
- {
- foreach ($guid->attributes as $key => $value)
- $this->attributes[$key] = $value;
- }
-
- // Is this is an ElggEntity but not an ElggObject = ERROR!
- else if ($guid instanceof ElggEntity)
- throw new InvalidParameterException("Passing a non-ElggObject to an ElggObject constructor!");
-
- // We assume if we have got this far, $guid is an int
- else if (is_int($guid)) {
- if (!$this->load($guid)) throw new IOException("Could not create a new ElggObject object from GUID:$guid");
- }
- }
- }
-
- function __get($name) { return $this->get($name); }
- function __set($name, $value) { return $this->set($name, $value); }
-
- /**
- * Override the load function.
- * This function will ensure that all data is loaded (were possible), so
- * if only part of the ElggObject is loaded, it'll load the rest.
- *
- * @param int $guid
- * @return true|false
- */
- protected function load($guid)
- {
- // Test to see if we have the generic stuff
- if (!parent::load($guid))
- return false;
-
- // Check the type
- if ($this->attributes['type']!='object')
- throw new InvalidClassException("GUID:$guid is not a valid ElggObject");
-
- // Load missing data
- $row = get_object_entity_as_row($guid);
-
- // Now put these into the attributes array as core values
- $objarray = (array) $row;
- foreach($objarray as $key => $value)
- $this->attributes[$key] = $value;
-
- return true;
- }
-
- /**
- * Override the save function.
- * @return true|false
- */
- public function save()
- {
- // Save generic stuff
- if (!parent::save())
- return false;
-
- // Now save specific stuff
- return create_object_entity($this->get('guid'), $this->get('title'), $this->get('description'));
- }
-
- /**
- * Delete this object.
- * @return true|false
- */
- public function delete()
- {
- if (!parent::delete())
- return false;
-
- return delete_object_entity($guid);
- }
-
- /**
- * Get sites that this object is a member of
- *
- * @param string $subtype Optionally, the subtype of result we want to limit to
- * @param int $limit The number of results to return
- * @param int $offset Any indexing offset
- */
- function getSites($subtype="", $limit = 10, $offset = 0) {
- return get_site_objects($this->getGUID(), $subtype, $limit, $offset);
- }
-
- /**
- * Add this object to a particular site
- *
- * @param int $site_guid The guid of the site to add it to
- * @return true|false
- */
- function addToSite($site_guid) {
- return add_site_object($this->getGUID(), $site_guid);
- }
-
- /**
- * Get the collections associated with a object.
- *
- * @param string $subtype Optionally, the subtype of result we want to limit to
- * @param int $limit The number of results to return
- * @param int $offset Any indexing offset
- * @return unknown
- */
- public function getCollections($subtype="", $limit = 10, $offset = 0) { get_object_collections($this->getGUID(), $subtype, $limit, $offset); }
-
- }
-
- /**
- * Return the object specific details of a object by a row.
- *
- * @param int $guid
- */
- function get_object_entity_as_row($guid)
- {
- global $CONFIG;
-
- $guid = (int)$guid;
-
- return get_data_row("SELECT * from {$CONFIG->dbprefix}objects_entity where guid=$guid");
- }
-
- /**
- * Create or update the extras table for a given object.
- * Call create_entity first.
- *
- * @param int $guid
- * @param string $title
- * @param string $description
- */
- function create_object_entity($guid, $title, $description)
- {
- global $CONFIG;
-
- $guid = (int)$guid;
- $title = sanitise_string($title);
- $description = sanitise_string($description);
-
- $row = get_entity_as_row($guid);
-
- if ($row)
- {
- // Exists and you have access to it
-
- // Delete any existing stuff
- delete_object_entity($guid);
-
- // Insert it
- $result = insert_data("INSERT into {$CONFIG->dbprefix}objects_entity (guid, title, description) values ($guid, '$title','$description')");
- if ($result!==false)
- return true;
- }
-
- return false;
- }
-
- /**
- * Delete a object's extra data.
- *
- * @param int $guid
- */
- function delete_object_entity($guid)
- {
- global $CONFIG;
-
- $guid = (int)$guid;
-
- $row = get_entity_as_row($guid);
-
- // Check to see if we have access and it exists
- if ($row)
- {
- // Delete any existing stuff
- return delete_data("DELETE from {$CONFIG->dbprefix}objects_entity where guid=$guid");
- }
-
- return false;
- }
-
- /**
- * Get the sites this object is part of
- *
- * @param int $object_guid The object's GUID
- * @param int $limit Number of results to return
- * @param int $offset Any indexing offset
- * @return false|array On success, an array of ElggSites
- */
- function get_object_sites($object_guid, $limit = 10, $offset = 0) {
- $object_guid = (int)$object_guid;
- $limit = (int)$limit;
- $offset = (int)$offset;
-
- return get_entities_from_relationship("member_of_site", $object_guid, false, "site", "", 0, "time_created desc", $limit, $offset);
- }
-
-?>
\ No newline at end of file +<?php +/** + * Elgg objects + * Functions to manage multiple or single objects in an Elgg install + * + * @package Elgg + * @subpackage Core + */ + +/** + * Return the object specific details of a object by a row. + * + * @param int $guid The guid to retreive + * + * @return bool + * @access private + */ +function get_object_entity_as_row($guid) { + global $CONFIG; + + $guid = (int)$guid; + return get_data_row("SELECT * from {$CONFIG->dbprefix}objects_entity where guid=$guid"); +} + +/** + * Create or update the extras table for a given object. + * Call create_entity first. + * + * @param int $guid The guid of the entity you're creating (as obtained by create_entity) + * @param string $title The title of the object + * @param string $description The object's description + * + * @return bool + * @access private + */ +function create_object_entity($guid, $title, $description) { + global $CONFIG; + + $guid = (int)$guid; + $title = sanitise_string($title); + $description = sanitise_string($description); + + $row = get_entity_as_row($guid); + + if ($row) { + // Core entities row exists and we have access to it + $query = "SELECT guid from {$CONFIG->dbprefix}objects_entity where guid = {$guid}"; + if ($exists = get_data_row($query)) { + $query = "UPDATE {$CONFIG->dbprefix}objects_entity + set title='$title', description='$description' where guid=$guid"; + + $result = update_data($query); + if ($result != false) { + // Update succeeded, continue + $entity = get_entity($guid); + elgg_trigger_event('update', $entity->type, $entity); + return $guid; + } + } else { + // Update failed, attempt an insert. + $query = "INSERT into {$CONFIG->dbprefix}objects_entity + (guid, title, description) values ($guid, '$title','$description')"; + + $result = insert_data($query); + if ($result !== false) { + $entity = get_entity($guid); + if (elgg_trigger_event('create', $entity->type, $entity)) { + return $guid; + } else { + $entity->delete(); + } + } + } + } + + return false; +} + +/** + * Get the sites this object is part of + * + * @param int $object_guid The object's GUID + * @param int $limit Number of results to return + * @param int $offset Any indexing offset + * + * @return false|array On success, an array of ElggSites + */ +function get_object_sites($object_guid, $limit = 10, $offset = 0) { + $object_guid = (int)$object_guid; + $limit = (int)$limit; + $offset = (int)$offset; + + return elgg_get_entities_from_relationship(array( + 'relationship' => 'member_of_site', + 'relationship_guid' => $object_guid, + 'type' => 'site', + 'limit' => $limit, + 'offset' => $offset, + )); +} + +/** + * Runs unit tests for ElggObject + * + * @param string $hook unit_test + * @param string $type system + * @param mixed $value Array of tests + * @param mixed $params Params + * + * @return array + * @access private + */ +function objects_test($hook, $type, $value, $params) { + global $CONFIG; + $value[] = "{$CONFIG->path}engine/tests/objects/objects.php"; + return $value; +} + +elgg_register_event_handler('init', 'system', 'objects_init', 0); +elgg_register_plugin_hook_handler('unit_test', 'system', 'objects_test'); |
