YII 1.0 常用CURD写法
1 <?php 2 //yii1.0 curd简单写法 3 //查询 4 Yii::app()->db->createCommand($sql)->queryAll();//查询所有行数据 5 Yii::app()->db->createCommand($sql)->queryRow();//查询第一行数据 6 Yii::app()->db->createCommand($sql)->queryColumn();//查询第一列数据 7 Yii::app()->db->createCommand($sql)->queryScalar();//查询第一行的第一字段 8 9 //执行 10 Yii::app()->db->createCommand($sql)->execute();//创建、更新、删除,的执行 11 12 //插入(增) 13 $result = Yii::app()->db->createCommand()->insert('test', array( 14 'name' => 'admin', 15 'ctime' => time() 16 )); 17 18 //修改 19 $result = Yii::app()->db->createCommand()->update('test', array( 20 'name' => 'admin_update' 21 ),'id=:id',array(':id'=>$id)); 22 23 //查 24 $result = Yii::app()->db->createCommand()->select('id,name') 25 ->from('test') 26 ->where('id=:id',array(':id'=>$id)) 27 ->queryRow(); 28 29 //删除 30 $result =Yii::app()->db->createCommand()->delete('test','id=:id',array(':id'=>$id)); 31 32 //修改字段自增加1 33 $updareRet = Yii::app()->db->createCommand()->update('test', array( 34 'notify_times' => new CDbExpression('notify_times+1') 35 ),'id=:id',array(':id'=>$id)); 36 37 38 //二维对象转数组 39 $arrayRet=array(); 40 foreach($result as $model){ 41 $arrayRet[]= $model->attributes; 42 }
1 //判断查询条件 2 $paramOne = 1; 3 $paramTwo = 'admin'; 4 if ($paramOne ==1) { 5 $where[] = "id=" . $paramOne; 6 } 7 if ($paramTwo) { 8 $where[] = "name=" . $paramTwo; 9 } 10 11 $condition = ''; 12 if ($where) { 13 $condition = implode(' and ', $where); 14 } 15 16 $result = Yii::app()->db->createCommand()->select('*')->from('sdk_test'); 17 $result = $result->where($condition); 18 $result = $result->queryAll();
YII 1.0 常用CURD写法-ORM ======================================== 常规原生sql写法 $sql="select u.account,i.* from sys_user as u left join user_info as i on u.id=i.user_id"; //sql语句 $ret=Yii::app()->db->createCommand ($sql)->queryAll();//执行方法 ======================================== 事务 $db = Yii::app()->db; $dbTrans = $db->beginTransaction(); //开始事物 $dbTrans->commit(); //提交 $dbTrans->rollback(); //回滚 ======================================== 分页 一般写法:适合建模后单表查找和分页 $criteria = new CDbCriteria; //实例化CDbCriteria操作数据类 $count = Test::model()->count($criteria); //统计test模型数量(需要建模型) $pages = new CPagination($count); //实例化CPagination操作分页类,传入统计总数 $pages->pageSize = 5; //设置每页数量 $pages->applylimit($criteria); //分页数量设定和查询 $model = Test::model()->findAll($criteria); //查找数据 记得控制器里有个函数paginate($itemCount,$pageSize=null,$pageVar=null) 原生操作数据写法: $criteria = new CDbCriteria; $sql = "SELECT * FROM USER"; $model= Yii::app()->db->createCommand($sql)->queryAll(); $pages = new CPagination(count($model)); $pages->pageSize = 4; $pages->applylimit($criteria); $model=Yii::app()->db->createCommand($sql." LIMIT :offset,:limit"); $model->bindValue(':offset', $pages->currentPage*$pages->pageSize); $model->bindValue(':limit', $pages->pageSize); $model=$model->queryAll(); ======================================== 一、查询数据集合(二维数据) 1、$admin=Admin::model()->findAll ($condition,$params); 该方法是根据一个条件查询一个集合,如: findAll("username=:name",array(":name"=>$username)); 2、$admin=Admin::model()->findAllByPk($postIDs,$condition,$params); findAllByPk($id,"name like ':name' and age=:age",array(':name'=>$name,'age'=>$age)); 该方法是根据主键查询一个集合,可以使用多个主键,如: findAllByPk(array(1,2)); 3、$admin=Admin::model()->findAllByAttributes($attributes,$condition,$params); 该方法是根据条件查询一个集合,可以是多个条件,把条件放到数组里面,如: findAllByAttributes(array('username'=>'admin')); 4、$admin=Admin::model()->findAllBySql($sql,$params); 该方法是根据SQL语句查询一个数组,如: findAllBySql("select *from admin whereusername=:name",array(':name'=>'admin')); ======================================== 二、查询对像的方法(一维数据) 1、$admin=Admin::model()->findByPk ($postID,$condition,$params); 根据主键查询出一个对象,如:findByPk(1); 2、$row=Admin::model()->find ($condition,$params); 根据一个条件查询出一组数据,可能是多个,但是他只返回第一行数据,如: find('username=:name',array(':name'=>'admin')); $userinfo=Userinfo::model()->find(array('condition'=>'user_id=:user_id','params'=>array(':user_id'=>$uid))); print_r($userinfo->user_id); 3、$admin=Admin::model()->findByAttributes ($attributes,$condition,$params); 该方法是根据条件查询一组数据,可以是多个条件,把条件放到数组里面,他查询的也是第一条数据,如: findByAttributes(array('username'=>'admin')); 4、$admin=Admin::model()->findBySql ($sql,$params); 该方法是根据SQL语句查询一组数据,他查询的也是第一条数据,如: findBySql("select *from admin whereusername=:name",array(':name'=>'admin')); 5、拼一个获得SQL的方法,在根据find查询出一个对象 $criteria=new CDbCriteria; $criteria->select='username'; // only select the 'title' column $criteria->condition='username=:username'; $criteria->params=array(':username=>'admin'); $post=Text::model()->find($criteria); ======================================== 三、查询个数,判断查询是否有结果 1、$n=Post::model()->count ($condition,$params); 该方法是根据一个条件查询一个集合有多少条记录,返回一个int型数字,如 count("username=:name",array(":name"=>$username)); 2、$n=Post::model()->countBySql ($sql,$params); 该方法是根据SQL语句查询一个集合有多少条记录,返回一个int型数字,如 countBySql("select *from admin whereusername=:name",array(':name'=>'admin')); 3、$exists=Post::model()->exists($condition,$params); 该方法是根据一个条件查询查询得到的数组有没有数据,如果有数据返回一个true,否则没有找到 ======================================== 四、添加的方法 $admin=newAdmin; $admin->username=$username; $admin->password=$password; $admin->save() //添加,修改都能用save $userLimit = new UserLimit(); $userLimit->item = 0.30000; $userLimit->insert() //常规添加插入 ======================================== 五、修改的方法 $userLimitRet = UserLimit::model()->findByPk (array ( 'user_id' => $userId, 'category_id' => $v )); $userLimitRet->order = $order; $userLimitRet->update() //常规修改方法 $userAmount=userAmount::model()->findByPk ($userId); $userAmount->credit=Yii::app()->request->getParam('credit',10000); $ret = $userAmount->save(); //添加,修改都能用save 1、Post::model()->updateAll ($attributes,$condition,$params); $count =Admin::model()->updateAll(array('username'=>'11111','password'=>'11111'),'password=:pass',array(':pass'=>'1111a1')); if($count>0){ echo "修改成功"; }else{ echo "修改失败"; } 2、Post::model()->updateByPk ($pk,$attributes,$condition,$params); $count =Admin::model()->updateByPk(1,array('username'=>'admin','password'=>'admin')); $count =Admin::model()->updateByPk(array(1,2),array('username'=>'admin','password'=>'admin'),'username=:name',array(':name'=>'admin')); if($count>0){ echo "修改成功"; }else{ echo "修改失败"; } $pk代表主键,可以是一个也可以是一个集合,$attributes代表是要修改的字段的集合,$condition代表条件,$params传入的值 3、Post::model()->updateCounters ($counters,$condition,$params); $count=Admin::model()->updateCounters(array('status'=>1),'username=:name',array(':name'=>'admin')); if($count>0){ echo "修改成功"; }else{ echo "修改失败"; } ======================================== 六、删除的方法 1、Post::model()->deleteAll($condition,$params); $count = Admin::model()->deleteAll('username=:nameandpassword=:pass',array(':name'=>'admin',':pass'=>'admin')); $id=1,2,3 deleteAll('id in(".$id.")');删除id为这些的数据 if($count>0){ echo "删除成功"; }else{ echo "删除失败"; } 2、Post::model()->deleteByPk($pk,$condition,$params); $count = Admin::model()->deleteByPk(1); $count =Admin::model()->deleteByPk(array(1,2),'username=:name',array(':name'=>'admin')); if($count>0){ echo "删除成功"; }else{ echo "删除失败"; } ======================================== 七、链式写法 $pagesize = 5; $page = $this->request->getParam('page',1); $result = Yii::app()->db->createCommand()->select('m.id,content as desc,link as title') ->from('sdk_user_msg u') ->join('sdk_msg m','u.msg_id=m.id') ->where('u.uid in(0,:uid) and u.game_id in(0,:game_id) and m.starttime <= :date and m.endtime >= :date and m.status = 1',[':uid' => $uid,':game_id' => $game_id,':date'=>$date]) ->limit($pagesize, ($page - 1) * $pagesize) ->order('m.id desc') ->queryAll();
Yii的where方法使用大全 https://blog.csdn.net/liruxing1715/article/details/48575025