Subversion Repositories SmartDukaan

<?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

 * @package       Cake.Model

 * @since         CakePHP(tm) v 0.2.9

 * @license       http://www.opensource.org/licenses/mit-license.php MIT License

 */

App::uses('Model', 'Model');

/**

 * ACL Node

 *

 * @package       Cake.Model

 */

class AclNode extends Model {

/**

 * Explicitly disable in-memory query caching for ACL models

 *

 * @var bool

 */

	public $cacheQueries = false;

/**

 * ACL models use the Tree behavior

 *

 * @var array

 */

	public $actsAs = array('Tree' => array('type' => 'nested'));

/**

 * Constructor

 *

 */

	public function __construct() {

		$config = Configure::read('Acl.database');

		if (isset($config)) {

			$this->useDbConfig = $config;

		}

		parent::__construct();

	}

/**

 * Retrieves the Aro/Aco node for this model

 *

 * @param string|array|Model $ref Array with 'model' and 'foreign_key', model object, or string value

 * @return array Node found in database

 * @throws CakeException when binding to a model that doesn't exist.

 */

	public function node($ref = null) {

		$db = $this->getDataSource();

		$type = $this->alias;

		$result = null;

		if (!empty($this->useTable)) {

			$table = $this->useTable;

		} else {

			$table = Inflector::pluralize(Inflector::underscore($type));

		}

		if (empty($ref)) {

			return null;

		} elseif (is_string($ref)) {

			$path = explode('/', $ref);

			$start = $path[0];

			unset($path[0]);

			$queryData = array(

				'conditions' => array(

					$db->name("{$type}.lft") . ' <= ' . $db->name("{$type}0.lft"),

					$db->name("{$type}.rght") . ' >= ' . $db->name("{$type}0.rght")),

				'fields' => array('id', 'parent_id', 'model', 'foreign_key', 'alias'),

				'joins' => array(array(

					'table' => $table,

					'alias' => "{$type}0",

					'type' => 'INNER',

					'conditions' => array("{$type}0.alias" => $start)

				)),

				'order' => $db->name("{$type}.lft") . ' DESC'

			);

			$conditionsAfterJoin = array();

			foreach ($path as $i => $alias) {

				$j = $i - 1;

				$queryData['joins'][] = array(

					'table' => $table,

					'alias' => "{$type}{$i}",

					'type' => 'INNER',

					'conditions' => array(

						$db->name("{$type}{$i}.alias") . ' = ' . $db->value($alias, 'string')

					)

				);

				// it will be better if this conditions will performs after join operation

				$conditionsAfterJoin[] = $db->name("{$type}{$j}.id") . ' = ' . $db->name("{$type}{$i}.parent_id");

				$conditionsAfterJoin[] = $db->name("{$type}{$i}.rght") . ' < ' . $db->name("{$type}{$j}.rght");

				$conditionsAfterJoin[] = $db->name("{$type}{$i}.lft") . ' > ' . $db->name("{$type}{$j}.lft");

				$queryData['conditions'] = array('or' => array(

					$db->name("{$type}.lft") . ' <= ' . $db->name("{$type}0.lft") . ' AND ' . $db->name("{$type}.rght") . ' >= ' . $db->name("{$type}0.rght"),

					$db->name("{$type}.lft") . ' <= ' . $db->name("{$type}{$i}.lft") . ' AND ' . $db->name("{$type}.rght") . ' >= ' . $db->name("{$type}{$i}.rght"))

				);

			}

			$queryData['conditions'] = array_merge($queryData['conditions'], $conditionsAfterJoin);

			$result = $db->read($this, $queryData, -1);

			$path = array_values($path);

			if (!isset($result[0][$type]) ||

				(!empty($path) && $result[0][$type]['alias'] != $path[count($path) - 1]) ||

				(empty($path) && $result[0][$type]['alias'] != $start)

			) {

				return false;

			}

		} elseif (is_object($ref) && $ref instanceof Model) {

			$ref = array('model' => $ref->name, 'foreign_key' => $ref->id);

		} elseif (is_array($ref) && !(isset($ref['model']) && isset($ref['foreign_key']))) {

			$name = key($ref);

			list(, $alias) = pluginSplit($name);

			$model = ClassRegistry::init(array('class' => $name, 'alias' => $alias));

			if (empty($model)) {

				throw new CakeException('cake_dev', "Model class '%s' not found in AclNode::node() when trying to bind %s object", $type, $this->alias);

			}

			$tmpRef = null;

			if (method_exists($model, 'bindNode')) {

				$tmpRef = $model->bindNode($ref);

			}

			if (empty($tmpRef)) {

				$ref = array('model' => $alias, 'foreign_key' => $ref[$name][$model->primaryKey]);

			} else {

				if (is_string($tmpRef)) {

					return $this->node($tmpRef);

				}

				$ref = $tmpRef;

			}

		}

		if (is_array($ref)) {

			if (is_array(current($ref)) && is_string(key($ref))) {

				$name = key($ref);

				$ref = current($ref);

			}

			foreach ($ref as $key => $val) {

				if (strpos($key, $type) !== 0 && strpos($key, '.') === false) {

					unset($ref[$key]);

					$ref["{$type}0.{$key}"] = $val;

				}

			}

			$queryData = array(

				'conditions' => $ref,

				'fields' => array('id', 'parent_id', 'model', 'foreign_key', 'alias'),

				'joins' => array(array(

					'table' => $table,

					'alias' => "{$type}0",

					'type' => 'INNER',

					'conditions' => array(

						$db->name("{$type}.lft") . ' <= ' . $db->name("{$type}0.lft"),

						$db->name("{$type}.rght") . ' >= ' . $db->name("{$type}0.rght")

					)

				)),

				'order' => $db->name("{$type}.lft") . ' DESC'

			);

			$result = $db->read($this, $queryData, -1);

			if (!$result) {

				throw new CakeException(__d('cake_dev', "AclNode::node() - Couldn't find %s node identified by \"%s\"", $type, print_r($ref, true)));

			}

		}

		return $result;

	}

}