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yii CDbCriteria常用的方法

程序员文章站 2022-04-29 21:53:30
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注:$c = new CDbCriteria();是ActiveRecord的一种写法,使ActiveRecord更加灵活,而不是手册中DAO(PDO)和Query Builder。

1. criteria常用的sql拼接方式

 $criteria = new CDbCriteria;        
//函数方式  
    $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    
       
    $criteria->addCondition("id = :id");    
    $criteria->params[':id']=1;    
     
//属性方式    
    $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   


2. 实例代码

     
//根据输入的名字查询爱好
        public function serach_hobby($name){
            
            $criteria=new CDbCriteria();
            $criteria->addSearchCondition('aname', "$name");
            $result=  Hobby::model()->findAll($criteria);
            return $result;
        }

    就是  where aname like '%$name%'的意思

其他:
    $criteria = new CDbCriteria();  
    $criteria->select = 'table_name,model_id,sum(amount) total';  
    $criteria->group = 'table_name,model_id';  
    $criteria->addCondition("$nIdcId=4");//也可以$criteria->condition = "$nIdcId=4";  
    $aResult = accessory_info::model()->findAll($criteria);  
      
      
    $c = new CDbCriteria();  
    $c->select = 't.id, t.created_at, t.outsource_id, t.user_id, t.operate, t.content';  
    $c->join = 'LEFT JOIN outsource ON outsource.id=t.outsource_id';  
    $c->condition = 'outsource.idc_id IN(' . implode(',', $idc_ids)  . ')';  
      
    if($last_log_id) {  
        $c->condition .= " AND t.id > $last_log_id";  
    }  
      
    $c->limit = 20;  
    $c->order = 't.id DESC';  
      
    $logs = OutsourceProcessLog::model()->findAll($c);  


希望对你们有帮助!