Yii CDbCriteria的常用方法

$criteria = new CDbCriteria;      

$criteria->addCondition("id=1"); //查询条件，即where id = 1  

$criteria->addInCondition(‘id‘, array(1,2,3,4,5)); //代表where id IN (1,23,,4,5,);  

$criteria->addNotInCondition(‘id‘, array(1,2,3,4,5));//与上面正好相法，是NOT IN  

$criteria->addCondition(‘id=1‘,‘OR‘);//这是OR条件，多个条件的时候，该条件是OR而非AND  

$criteria->addSearchCondition(‘name‘, ‘分类‘);//搜索条件，其实代表了。。where name like ‘%分类%‘  

$criteria->addBetweenCondition(‘id‘, 1, 4);//between 1 and 4   

$criteria->compare(‘id‘, 1);    //这个方法比较特殊，他会根据你的参数自动处理成addCondition或者addInCondition，  

                                //即如果第二个参数是数组就会调用addInCondition  

/** 

 * 传递变量 

 */  

$criteria->addCondition("id = :id");  

$criteria->params[‘:id‘]=1;  

/** 

 * 一些public vars 

 */  

$criteria->select = ‘id,parentid,name‘; //代表了要查询的字段，默认select=‘*‘;  

$criteria->join = ‘xxx‘; //连接表  

$criteria->with = ‘xxx‘; //调用relations   

$criteria->limit = 10;    //取1条数据，如果小于0，则不作处理  

$criteria->offset = 1;   //两条合并起来，则表示 limit 10 offset 1,或者代表了。limit 1,10  

$criteria->order = ‘xxx DESC,XXX ASC‘ ;//排序条件  

$criteria->group = ‘group 条件‘;  

$criteria->having = ‘having 条件 ‘;  

$criteria->distinct = FALSE; //是否唯一查询

多表查询

 $criteria=new CDbCriteria;

$criteria->alias = ‘Invoice‘;
$criteria->join=‘LEFT JOIN Client ON Client.id=Invoice.clientId‘;
$criteria->condition=‘Client.businessId=‘. Yii::app()->userInfo->business;