thinkphp php开源框架

<?php // +---------------------------------------------------------------------- // | ThinkPHP // +---------------------------------------------------------------------- // | Copyright (c) 2008 http://thinkphp.cn All rights reserved. // +---------------------------------------------------------------------- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) // +---------------------------------------------------------------------- // | Author: liu21st <liu21st@gmail.com> // +---------------------------------------------------------------------- // $Id$ define('HAS_ONE',1); define('BELONGS_TO',2); define('HAS_MANY',3); define('MANY_TO_MANY',4); define('MUST_TO_VALIDATE',1); // 必须验证 define('EXISTS_TO_VAILIDATE',0); // 表单存在字段则验证 define('VALUE_TO_VAILIDATE',2); // 表单值不为空则验证 /** +------------------------------------------------------------------------------ * ThinkPHP Model模型类 抽象类 * 实现了ORM和ActiveRecords模式 +------------------------------------------------------------------------------ * @category Think * @package Think * @subpackage Core * @author liu21st <liu21st@gmail.com> * @version $Id$ +------------------------------------------------------------------------------ */ class Model extends Base implements IteratorAggregate { // 数据库连接对象列表 protected $_db = array(); // 当前数据库操作对象 protected $db = null; // 数据表前缀 protected $tablePrefix = ''; // 数据表后缀 protected $tableSuffix = ''; // 模型名称 protected $name = ''; // 数据库名称 protected $dbName = ''; // 数据表名（不包含表前缀） protected $tableName = ''; // 实际数据表名（包含表前缀） protected $trueTableName =''; // 字段信息 protected $fields = array(); // 字段类型信息 protected $type = array(); // 数据信息 protected $data = array(); // 查询表达式参数 protected $options = array(); // 数据列表信息 protected $dataList = array(); // 上次错误信息 protected $error = ''; // 验证错误信息 protected $validateError = array(); // 包含的聚合对象 protected $aggregation = array(); // 是否为复合对象 protected $composite = false; // 是否为视图模型 protected $viewModel = false; // 乐观锁 protected $optimLock = 'lock_version'; // 悲观锁 protected $pessimisticLock = false; protected $autoSaveRelations = false; // 自动关联保存 protected $autoDelRelations = false; // 自动关联删除 protected $autoAddRelations = false; // 自动关联写入 protected $autoReadRelations = false; // 自动关联查询 protected $lazyQuery = false; // 是否启用惰性查询 // 自动写入时间戳 protected $autoCreateTimestamps = array('create_at','create_on','cTime'); protected $autoUpdateTimestamps = array('update_at','update_on','mTime'); protected $autoTimeFormat = ''; protected $blobFields = null; protected $blobValues = null; /** +---------------------------------------------------------- * 架构函数 * 取得DB类的实例对象 数据表字段检查 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param mixed $data 要创建的数据对象内容 +---------------------------------------------------------- */ public function __construct($data='') { // 模型初始化 $this->_initialize(); // 模型名称获取 $this->name = $this->getModelName(); // 如果不是复合对象进行数据库初始化操作 if(!$this->composite) { import("Think.Db.Db"); // 获取数据库操作对象 if(!empty($this->connection)) { // 当前模型有独立的数据库连接信息 $this->db = Db::getInstance($this->connection); }else{ $this->db = Db::getInstance(); } // 设置数据库的返回数据格式 $this->db->resultType = C('DATA_RESULT_TYPE'); //为获得ORACLE自增LastID而统一考虑的 $this->db->tableName = $this->parseName($this->name); // 设置默认的数据库连接 $this->_db[0] = &$this->db; // 设置表前后缀 $this->tablePrefix = $this->tablePrefix?$this->tablePrefix:C('DB_PREFIX'); $this->tableSuffix = $this->tableSuffix?$this->tableSuffix:C('DB_SUFFIX'); // 数据表字段检测 $this->_checkTableInfo(); } // 如果有data数据进行实例化，则创建数据对象 if(!empty($data)) { $this->create($data); } } /** +---------------------------------------------------------- * 取得模型实例对象 +---------------------------------------------------------- * @static * @access public +---------------------------------------------------------- * @return mixed 返回数据模型实例 +---------------------------------------------------------- */ public static function getInstance() { return get_instance_of(__CLASS__); } /** +---------------------------------------------------------- * 设置数据对象的值 （魔术方法） +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param string $name 名称 * @param mixed $value 值 +---------------------------------------------------------- * @return void +---------------------------------------------------------- */ public function __set($name,$value) { // 设置数据对象属性 $this->data[$name] = $value; } /** +---------------------------------------------------------- * 获取数据对象的值 （魔术方法） +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param string $name 名称 +---------------------------------------------------------- * @return mixed +---------------------------------------------------------- */ public function __get($name) { if(isset($this->data[$name])) { return $this->data[$name]; }elseif(property_exists($this,$name)){ return $this->$name; }else{ return null; } } /** +---------------------------------------------------------- * 字符串命名风格转换 * type * =0 将Java风格转换为C的风格 * =1 将C风格转换为Java的风格 +---------------------------------------------------------- * @access protected +---------------------------------------------------------- * @param string $name 字符串 * @param integer $type 转换类型 +---------------------------------------------------------- * @return string +---------------------------------------------------------- */ protected function parseName($name,$type=0) { if($type) { return preg_replace("/_([a-zA-Z])/e", "strtoupper('\\1')", $name); }else{ $name = preg_replace("/[A-Z]/", "_\\0", $name);