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YII学习,yii

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Release: 2016-06-13 09:07:20
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YII学习,yii

CONFIG

tablePrefix 设置表前缀 

 

MODEL

设置与MODEL关联的表

public function tableName(){

return {{%table_name}}  表前缀加表名格式

}

 

分页: use yii\data\Pagination; $Page = new Pagination(['totalCount' => 总条数,'pageSize'=>每页显示数量]);   查询: 必须有与数据库名对应的model Model名::find()->where(条件['status'=>1]);                  $tombList
                   ->offset($Page->offset分页)
                   ->limit($Page->limit分页数量)
                   ->all(); ->all();                         查询全部 ->one();                      查询一个 ->count();                   查询数量 ->average(字段);         查询平均值 ->min(字段);               查询最小值 ->max(字段);              查询最大值 ->scalar();                  查询第一行第一列的值 ->column();               查询所有结果第一列的值 ->each(数量);            反复查询结果,处理内存溢出现象 删除 Yii::$app->db->createCommand()->delete('表名','条件')->execute(); 修改 Yii::$app->db->createCommand()->update('表名',修改字段['status'=>1],'条件')->execute(); 添加 Yii::$app->db->createCommand()->insert('表名',数据)->execute();
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