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;
        }

}