Yii模型操作之criteria查找数据库办法

public function search(){ // Warning: Please modify the following code to remove attributes that // should not be searched. $criteria=new CDbCriteria; $criteria->compare('id',$this->id); $criteria->compare('title',$this->title,true); //支持模糊查找 $criteria->compare('content',$this->content,true); //支持模糊查找 $criteria->compare('type',$this->type); $criteria->compare('user',$this->user,true); //支持模糊查找 $criteria->compare('status',$this->status); $criteria->compare('create_data',$this->create_data,true); //支持模糊查找 return new CActiveDataProvider($this, array( 'criteria'=>$criteria, 'pagination'=>array( 'pageSize'=>50, ), ));}

$criteria->compare('create_time','endtime),//创建早间小于等于指定时间

定义要查找的字段：

//查找的结果$criteria->select = 'id,title,content,author,status,createtime',//也可以以下一种方式定义$criteria->select = array('id','title','content','author','status','createtime'),

定义填加查找条件：

//定义条件$criteria->select = 'status=1',//添加匹配$criteria->compare('title',$this->title,true),//添加条件 $condition可以是数组，也可以是字符串，and可以省略$criteria->addCondition($condition,'and'),//添加IN条件 $column为字段名$criteria->addInCondition(string $column, array $values, string $operator='AND')//添加notin条件$criteria->addNotInCondition(string $column, array $values, string $operator='AND')//添加like条件$criteria->addSearchCondition(string $column, string $keyword),//添加Between条件$criteria->addBetweenCondition(string $column, string $valueStart, string $valueEnd, string $operator='AND')，

JOIN连表查询

$criteria->join = 'LEFT JOIN users ON users.id=authorID',

order查询结果排序：

$criteria->order = 'createtime DESC',

group结果分组：

$criteria->group = 'projectID, teamID',

having筛选分组结果分组数量：

$criteria->having = 'SUM(revenue)<50000&＃039;,

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