<?php

/**
 * Класс модели данных
 *
 * @copyright NetMonsters <team@netmonsters.ru>
 * @link http://netmonsters.ru
 * @package Majestic
 * @subpackage Model
 * @since 2011-11-15
 */

abstract class MongoModel extends Model
{

    protected $useMongoId = true;

    public function __construct($connection = 'default')
    {
        parent::__construct($connection);
    }

    public function count($query = array(), $limit = 0, $skip = 0)
    {
        return $this->db->count($this->table(), $query, $limit, $skip);
    }

    public function find($condition = array(), $fields = array())
    {
        return $this->db->find($this->table(), $condition, $fields);
    }

    public function get($id)
    {
        if($this->useMongoId) {
            if(! $id instanceof MongoId) {
                $id = new MongoId($id);
            }
        }
        return $this->db->get($this->table(), array('_id' => $id))->fetch();
    }

    public function delete($id)
    {
        if($this->useMongoId) {
            if(! $id instanceof MongoId) {
                $id = new MongoId($id);
            }
        }
        return $this->db->delete($this->table(), array('_id' => $id));
    }

    public function deleteAll($query = array())
    {
        $this->db->delete($this->table(), $query);
    }

    protected function fetchField($data, $params = array(), $field, $cache_key = null)
    {
        if (!$cache_key || !$result = $cache_key->get()) {
            $result = $this->db->find($this->table(), $data, array($field => 1))->fetchField($field);
            if ($cache_key) {
                $cache_key->set($result);
            }
        }
        return $result;
    }

    protected function fetch($data, $params = array(), $cache_key = null)
    {
        if (!$cache_key || !$result = $cache_key->get()) {
            $result = $this->db->find($this->table(), $data)->fetch();
            if ($cache_key) {
                $cache_key->set($result);
            }
        }
        return $result;
    }

    protected function fetchAll($data, $params = array(), $cache_key = null)
    {
        if (!$cache_key || !$result = $cache_key->get()) {
            $result = $this->db->find($this->table(), $data)->fetchAll();
            if ($cache_key) {
                $cache_key->set($result);
            }
        }
        return $result;
    }
}