<?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
{

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

    protected  function order(MongoStatement $cursor, $sort = array())
    {
        return $cursor->sort($sort);
    }

    protected  function skip(MongoStatement $cursor, $skip = 0)
    {
        return $cursor->skip($skip);
    }

    protected  function limit(MongoStatement $cursor, $limit = 0)
    {
        return $cursor->limit($limit);
    }

    public function get($id)
    {
        return $this->db->get($this->table(), array('_id' => $id))->fetch();
    }

    public function delete($id)
    {
        return $this->db->delete($this->table(), array('id' => $id));
    }

    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;
    }
}