/lib/Cake/Utility/ObjectCollection.php - pictcode - Redmine

pictcode / lib / Cake / Utility / ObjectCollection.php @ 635eef61

       <?php
       /**
        * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
        * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+       *
        * Licensed under The MIT License
        * For full copyright and license information, please see the LICENSE.txt
        * Redistributions of files must retain the above copyright notice.
+       *
        * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
        * @link          http://cakephp.org CakePHP(tm) Project
        * @license       http://www.opensource.org/licenses/mit-license.php MIT License
        */
       /**
        * Deals with Collections of objects. Keeping registries of those objects,
        * loading and constructing new objects and triggering callbacks. Each subclass needs
        * to implement its own load() functionality.
+       *
        * All core subclasses of ObjectCollection by convention loaded objects are stored
        * in `$this->_loaded`. Enabled objects are stored in `$this->_enabled`. In addition,
        * they all support an `enabled` option that controls the enabled/disabled state of the object
        * when loaded.
+       *
        * @package       Cake.Utility
        * @since CakePHP(tm) v 2.0
        */
       abstract class ObjectCollection {
       /**
        * List of the currently-enabled objects
+       *
        * @var array
        */
               protected $_enabled = array();
       /**
        * A hash of loaded objects, indexed by name
+       *
        * @var array
        */
               protected $_loaded = array();
       /**
        * Default object priority. A non zero integer.
+       *
        * @var int
        */
               public $defaultPriority = 10;
       /**
        * Loads a new object onto the collection. Can throw a variety of exceptions
+       *
        * Implementations of this class support a `$options['enabled']` flag which enables/disables
        * a loaded object.
+       *
        * @param string $name Name of object to load.
        * @param array $options Array of configuration options for the object to be constructed.
        * @return object the constructed object
        */
               abstract public function load($name, $options = array());
       /**
        * Trigger a callback method on every object in the collection.
        * Used to trigger methods on objects in the collection. Will fire the methods in the
        * order they were attached.
+       *
        * ### Options
+       *
        * - `breakOn` Set to the value or values you want the callback propagation to stop on.
        *    Can either be a scalar value, or an array of values to break on. Defaults to `false`.
+       *
        * - `break` Set to true to enabled breaking. When a trigger is broken, the last returned value
        *    will be returned. If used in combination with `collectReturn` the collected results will be returned.
        *    Defaults to `false`.
+       *
        * - `collectReturn` Set to true to collect the return of each object into an array.
        *    This array of return values will be returned from the trigger() call. Defaults to `false`.
+       *
        * - `modParams` Allows each object the callback gets called on to modify the parameters to the next object.
        *    Setting modParams to an integer value will allow you to modify the parameter with that index.
        *    Any non-null value will modify the parameter index indicated.
        *    Defaults to false.
+       *
        * @param string|CakeEvent $callback Method to fire on all the objects. Its assumed all the objects implement
        *   the method you are calling. If an instance of CakeEvent is provided, then then Event name will parsed to
        *   get the callback name. This is done by getting the last word after any dot in the event name
        *   (eg. `Model.afterSave` event will trigger the `afterSave` callback)
        * @param array $params Array of parameters for the triggered callback.
        * @param array $options Array of options.
        * @return mixed Either the last result or all results if collectReturn is on.
        * @throws CakeException when modParams is used with an index that does not exist.
        */
               public function trigger($callback, $params = array(), $options = array()) {
                       if (empty($this->_enabled)) {
                               return true;
+                      }
                       if ($callback instanceof CakeEvent) {
                               $event = $callback;
                               if (is_array($event->data)) {
                                       $params =& $event->data;
+                              }
                               if (empty($event->omitSubject)) {
                                       $subject = $event->subject();
+                              }
                               foreach (array('break', 'breakOn', 'collectReturn', 'modParams') as $opt) {
                                       if (isset($event->{$opt})) {
                                               $options[$opt] = $event->{$opt};
+                                      }
+                              }
                               $parts = explode('.', $event->name());
                               $callback = array_pop($parts);
+                      }
                       $options += array(
                               'break' => false,
                               'breakOn' => false,
                               'collectReturn' => false,
                               'modParams' => false
                       );
                       $collected = array();
                       $list = array_keys($this->_enabled);
                       if ($options['modParams'] !== false && !isset($params[$options['modParams']])) {
                               throw new CakeException(__d('cake_dev', 'Cannot use modParams with indexes that do not exist.'));
+                      }
                       $result = null;
                       foreach ($list as $name) {
                               $result = call_user_func_array(array($this->_loaded[$name], $callback), compact('subject') + $params);
                               if ($options['collectReturn'] === true) {
                                       $collected[] = $result;
+                              }
                               if ($options['break'] && ($result === $options['breakOn'] ||
                                       (is_array($options['breakOn']) && in_array($result, $options['breakOn'], true)))
                               ) {
                                       return $result;
                               } elseif ($options['modParams'] !== false && !in_array($result, array(true, false, null), true)) {
                                       $params[$options['modParams']] = $result;
+                              }
+                      }
                       if ($options['modParams'] !== false) {
                               return $params[$options['modParams']];
+                      }
                       return $options['collectReturn'] ? $collected : $result;
+              }
       /**
        * Provide public read access to the loaded objects
+       *
        * @param string $name Name of property to read
        * @return mixed
        */
               public function __get($name) {
                       if (isset($this->_loaded[$name])) {
                               return $this->_loaded[$name];
+                      }
                       return null;
+              }
       /**
        * Provide isset access to _loaded
+       *
        * @param string $name Name of object being checked.
        * @return bool
        */
               public function __isset($name) {
                       return isset($this->_loaded[$name]);
+              }
       /**
        * Enables callbacks on an object or array of objects
+       *
        * @param string|array $name CamelCased name of the object(s) to enable (string or array)
        * @param bool $prioritize Prioritize enabled list after enabling object(s)
        * @return void
        */
               public function enable($name, $prioritize = true) {
                       $enabled = false;
                       foreach ((array)$name as $object) {
                               list(, $object) = pluginSplit($object);
                               if (isset($this->_loaded[$object]) && !isset($this->_enabled[$object])) {
                                       $priority = $this->defaultPriority;
                                       if (isset($this->_loaded[$object]->settings['priority'])) {
                                               $priority = $this->_loaded[$object]->settings['priority'];
+                                      }
                                       $this->_enabled[$object] = array($priority);
                                       $enabled = true;
+                              }
+                      }
                       if ($prioritize && $enabled) {
                               $this->prioritize();
+                      }
+              }
       /**
        * Prioritize list of enabled object
+       *
        * @return array Prioritized list of object
        */
               public function prioritize() {
                       $i = 1;
                       foreach ($this->_enabled as $name => $priority) {
                               $priority[1] = $i++;
                               $this->_enabled[$name] = $priority;
+                      }
                       asort($this->_enabled);
                       return $this->_enabled;
+              }
       /**
        * Set priority for an object or array of objects
+       *
        * @param string|array $name CamelCased name of the object(s) to enable (string or array)
        *         If string the second param $priority is used else it should be an associative array
        *         with keys as object names and values as priorities to set.
        * @param int|null $priority Integer priority to set or null for default
        * @return void
        */
               public function setPriority($name, $priority = null) {
                       if (is_string($name)) {
                               $name = array($name => $priority);
+                      }
                       foreach ($name as $object => $objectPriority) {
                               list(, $object) = pluginSplit($object);
                               if (isset($this->_loaded[$object])) {
                                       if ($objectPriority === null) {
                                               $objectPriority = $this->defaultPriority;
+                                      }
                                       $this->_loaded[$object]->settings['priority'] = $objectPriority;
                                       if (isset($this->_enabled[$object])) {
                                               $this->_enabled[$object] = array($objectPriority);
+                                      }
+                              }
+                      }
                       $this->prioritize();
+              }
       /**
        * Disables callbacks on an object or array of objects. Public object methods are still
        * callable as normal.
+       *
        * @param string|array $name CamelCased name of the objects(s) to disable (string or array)
        * @return void
        */
               public function disable($name) {
                       foreach ((array)$name as $object) {
                               list(, $object) = pluginSplit($object);
                               unset($this->_enabled[$object]);
+                      }
+              }
       /**
        * Gets the list of currently-enabled objects, or, the current status of a single objects
+       *
        * @param string $name Optional. The name of the object to check the status of. If omitted,
        *   returns an array of currently-enabled object
        * @return mixed If $name is specified, returns the boolean status of the corresponding object.
        *   Otherwise, returns an array of all enabled objects.
        */
               public function enabled($name = null) {
                       if (!empty($name)) {
                               list(, $name) = pluginSplit($name);
                               return isset($this->_enabled[$name]);
+                      }
                       return array_keys($this->_enabled);
+              }
       /**
        * Gets the list of attached objects, or, whether the given object is attached
+       *
        * @param string $name Optional. The name of the object to check the status of. If omitted,
        *   returns an array of currently-attached objects
        * @return mixed If $name is specified, returns the boolean status of the corresponding object.
        *    Otherwise, returns an array of all attached objects.
        * @deprecated 3.0.0 Will be removed in 3.0. Use loaded instead.
        */
               public function attached($name = null) {
                       return $this->loaded($name);
+              }
       /**
        * Gets the list of loaded objects, or, whether the given object is loaded
+       *
        * @param string $name Optional. The name of the object to check the status of. If omitted,
        *   returns an array of currently-loaded objects
        * @return mixed If $name is specified, returns the boolean status of the corresponding object.
        *    Otherwise, returns an array of all loaded objects.
        */
               public function loaded($name = null) {
                       if (!empty($name)) {
                               list(, $name) = pluginSplit($name);
                               return isset($this->_loaded[$name]);
+                      }
                       return array_keys($this->_loaded);
+              }
       /**
        * Name of the object to remove from the collection
+       *
        * @param string $name Name of the object to delete.
        * @return void
        */
               public function unload($name) {
                       list(, $name) = pluginSplit($name);
                       unset($this->_loaded[$name], $this->_enabled[$name]);
+              }
       /**
        * Adds or overwrites an instantiated object to the collection
+       *
        * @param string $name Name of the object
        * @param Object $object The object to use
        * @return array Loaded objects
        */
               public function set($name = null, $object = null) {
                       if (!empty($name) && !empty($object)) {
                               list(, $name) = pluginSplit($name);
                               $this->_loaded[$name] = $object;
+                      }
                       return $this->_loaded;
+              }
       /**
        * Normalizes an object array, creates an array that makes lazy loading
        * easier
+       *
        * @param array $objects Array of child objects to normalize.
        * @return array Array of normalized objects.
        */
               public static function normalizeObjectArray($objects) {
                       $normal = array();
                       foreach ($objects as $i => $objectName) {
                               $options = array();
                               if (!is_int($i)) {
                                       $options = (array)$objectName;
                                       $objectName = $i;
+                              }
                               list(, $name) = pluginSplit($objectName);
                               $normal[$name] = array('class' => $objectName, 'settings' => $options);
+                      }
                       return $normal;
+              }
+      }