131 lines
3.3 KiB
PHP
131 lines
3.3 KiB
PHP
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<?php
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/**
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* Zeed Platform Project
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* Based on Zeed Framework & Zend Framework.
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*
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* BTS - Billing Transaction Service
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* CAS - Central Authentication Service
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*
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* LICENSE
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* http://www.zeed.com.cn/license/
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*
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* @category Zeed
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* @package Zeed_ChangeMe
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* @subpackage ChangeMe
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* @copyright Copyright (c) 2010 Zeed Technologies PRC Inc. (http://www.zeed.com.cn)
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* @author Zeed Team (http://blog.zeed.com.cn)
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* @since 2011-5-18
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* @version SVN: $Id$
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*/
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class Zeed_Db_Model_Mongo
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{
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/**
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* @var Mongo
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*/
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protected $conn;
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/**
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* @var MongoDb
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*/
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protected $db;
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/**
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* @var MongoCollection
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*/
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protected $collection = null;
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/**
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* 数据库表前缀(系统内部使用)
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*
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* @var string
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*/
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protected $_prefix = null;
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/**
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* 数据库连接实例缓存
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*
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* @var array
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*/
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protected static $instanceInternalCache = array();
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public function __construct($config = array())
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{
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$config = Zeed_Config::loadGroup('database.mongodb');
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if ($this->_prefix != '') {
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$this->_name = $this->_prefix . $this->_name;
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}
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$serverOptions = isset($config['server_options']) ? $config['server_options'] : array();
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$this->conn = $this->connect($config['server'], $serverOptions);
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$this->db = $this->conn->selectDB($config['db']);
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$this->collection = $this->db->selectCollection($this->_name);
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}
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/**
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* 数据库连接实例缓存
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*
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* @var array
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*/
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protected static $connections = null;
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/**
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* @return Mongo
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*/
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protected function connect($dsn, $options)
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{
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if (! isset(self::$connections[$dsn])) {
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if (! empty($options) && is_array($options)) {
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self::$connections[$dsn] = new Mongo($dsn, $options);
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} else {
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self::$connections[$dsn] = new Mongo($dsn);
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}
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}
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return self::$connections[$dsn];
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}
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/**
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* @return array
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*/
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public function listDBs()
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{
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return $this->conn->listDBs();
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}
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/**
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* @return array
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*/
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public function listCollections()
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{
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return $this->db->listCollections();
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}
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/**
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* 在子类中(注意注释中填写正确的返回值类型, 一般为类名):
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* <code>
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* public static function instance()
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* {
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* return parent::_instance(__CLASS__);
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* }
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* </code>
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*
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* @param string $model
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* @throws Zeed_Exception
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* @return Zeed_Db_Model_Mongo
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*/
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protected static function _instance($model)
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{
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if (isset(self::$instanceInternalCache[$model]) && is_subclass_of(self::$instanceInternalCache[$model], __CLASS__)) {
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return self::$instanceInternalCache[$model];
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} elseif (class_exists($model)) {
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self::$instanceInternalCache[$model] = new $model();
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return self::$instanceInternalCache[$model];
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}
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throw new Zeed_Exception('Mongo Model( ' . $model . ' ) not exists.');
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}
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}
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// End ^ Native EOL ^ UTF-8
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