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<?php |
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/** |
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* |
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* @package sitemaker |
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* @copyright (c) 2013 Daniel A. (blitze) |
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2 |
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* |
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*/ |
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namespace blitze\sitemaker\model; |
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abstract class base_collection implements \Iterator, \Countable, \ArrayAccess |
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{ |
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protected $entities = array(); |
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protected $entity_class; |
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/** |
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* Get the entities stored in the collection |
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*/ |
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public function get_entities() |
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{ |
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return $this->entities; |
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} |
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/** |
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* Clear the collection |
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*/ |
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public function clear() |
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{ |
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$this->entities = array(); |
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} |
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/** |
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* Reset the collection (implementation required by Iterator Interface) |
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*/ |
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public function rewind() |
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{ |
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reset($this->entities); |
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} |
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/** |
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* Get the current entity in the collection (implementation required by Iterator Interface) |
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* @return mixed |
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*/ |
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public function current() |
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{ |
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return current($this->entities); |
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} |
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/** |
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* Get the next entity in the collection (implementation required by Iterator Interface) |
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* |
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* @return mixed |
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*/ |
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public function next() |
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{ |
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return next($this->entities); |
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} |
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/** |
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* Get the key of the current entity in the collection (implementation required by Iterator Interface) |
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* @return mixed |
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*/ |
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public function key() |
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{ |
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return key($this->entities); |
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} |
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/** |
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* Check if there’re more entities in the collection (implementation required by Iterator Interface) |
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* |
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* @return bool |
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*/ |
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public function valid() |
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{ |
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return ($this->current() !== false); |
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} |
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/** |
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* Count the number of entities in the collection (implementation required by Countable Interface) |
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* |
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* @return mixed |
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*/ |
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public function count() |
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{ |
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return count($this->entities); |
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} |
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/** |
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* Add an entity to the collection (implementation required by ArrayAccess interface) |
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* |
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* @param mixed $key |
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* @param mixed $entity |
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* @return bool |
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* @throws \blitze\sitemaker\exception\invalid_argument |
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*/ |
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public function offsetSet($key, $entity) |
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{ |
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if ($entity instanceof $this->entity_class) |
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{ |
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if (!isset($key)) |
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{ |
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$this->entities[] = $entity; |
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} |
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else |
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{ |
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$this->entities[$key] = $entity; |
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} |
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return true; |
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} |
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throw new \blitze\sitemaker\exception\invalid_argument(array('entity', 'INVALID_ENTITY')); |
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} |
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/** |
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* Remove an entity from the collection (implementation required by ArrayAccess interface) |
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* |
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* @param mixed $key |
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* @return bool |
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*/ |
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public function offsetUnset($key) |
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{ |
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if ($key instanceof $this->entity_class) |
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{ |
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$this->entities = array_filter( |
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$this->entities, |
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function ($v) use ($key) |
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{ |
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return $v !== $key; |
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} |
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); |
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return true; |
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} |
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if (isset($this->entities[$key])) |
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{ |
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unset($this->entities[$key]); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Get the specified entity in the collection (implementation required by ArrayAccess interface) |
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* |
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* @param mixed $key |
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* @return null |
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*/ |
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5 |
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public function offsetGet($key) |
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{ |
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return isset($this->entities[$key]) ? $this->entities[$key] : null; |
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} |
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/** |
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* Check if the specified entity exists in the collection (implementation required by ArrayAccess interface) |
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* |
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* @param mixed $key |
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* @return bool |
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*/ |
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6 |
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public function offsetExists($key) |
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{ |
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return isset($this->entities[$key]); |
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} |
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} |
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blitze /
phpBB-ext-sitemaker
