Yii2.0小部件GridView(两表联查/搜索/分页)功能的实现代码

<?php namespace backendcontrollers; header("content-type:text/html;charset=utf-8"); use yii; use yiiwebcontroller; //超级控制器类 use backendmodelsbooksinfo; //表model类 use backendmodelsinfosearch; //引入搜索model类 use yiidataactivedataprovider; //小部件数据源类 use yiigridgridview; //查询小部件 /** *@abstract bookscontroller *@author ning <[email ning@163.com]> *@version [version 1.0] [书籍管理] */ class booksinfocontroller extends controller { //书籍列表 public function actionindex() { $searchmodel = new infosearch(); //实例化searchmodel[搜索model] if(!empty($_get['infosearch'])){ $getsearch = yii::$app->request->get(); //接收搜索字段 $data = $searchmodel->search($getsearch); }else{ //小部件查询数据 $data = new activedataprovider([ 'query' => booksinfo::find(), //查询数据 'pagination' => [ 'pagesize' => 2, //每页显示条数 ], 'sort' => [ 'defaultorder' => [ // 'created_at' => sort_desc, 'id' => sort_asc, //[字段]设置排序· ] ], ]); } //传送查询数据、搜素model return $this->render('index',['data'=>$data,'searchmodel'=>$searchmodel]); } ?>

<?php namespace backendmodels; use yii; use yiidbactiverecord; /** *@abstract [bookform] *@author ning <[email ning@163.com]> *@version [vector 1.0] [书籍详情模型] */ class booksinfo extends activerecord { /** * @设置表名 */ public static function tablename() { return '{{%books_info}}'; } //关联表 public function getbookstype(){ // hasone要求返回两个参数 第一个参数是关联表的类名 第二个参数是两张表的关联关系 // 这里id是books_type表的id, 关联books_info表的type_id return $this->hasone(bookstype::classname(), ['id' => 'type_id']); } public function attributelabels() { return [ 'id' => 'id', 'book_name' => '书籍名称', 'book_face' => '书籍封面', 'type_id' => '书籍分类id', 'type_name' => '书籍分类', ]; } } ?>

<?php namespace backendmodels; //命名空间 use yii; use yiibasemodel; //引入基类model use yiidataactivedataprovider; //引入数据源类 /** *@abstract [搜索model] *@return [type] *@author ning <[email ning@163.com]> */ // 注意:此处继承的是查询model--->booksinfo class infosearch extends booksinfo { public $type_name; //定义属性变量 // 只有在 rules() 函数中声明的字段才可以搜索 public function rules() { return [ // [['book_name','type_name'], 'safe'], [['type_name'], 'safe'], ]; } public function scenarios() { // 旁路在父类中实现的 scenarios() 函数 return model::scenarios(); } public function search($params) { $query = booksinfo::find(); $dataprovider = new activedataprovider([ 'query' => $query, 'pagination' => [ 'pagesize' => 1, ], ]); /*这里的articlecategory是article模型里面关联的方法名，除了首字母，其他都要完全一样，否则会报错*/ $query->joinwith(['bookstype']); // 从参数的数据中加载过滤条件，并验证 if (!($this->load($params) && $this->validate())) { return $dataprovider; } // 增加过滤条件来调整查询对象 $query->andfilterwhere(['like', 'book_name', $this->book_name]); //添加关联字段过滤条件[注意:此处books_type.type_name中books_type为分类表名] $query->andfilterwhere(['like', 'books_type.type_name', $this->type_name]); return $dataprovider; } } ?>

<?php use yiigridgridview; use yiidataactivedataprovider; use yiigridactioncolumn; use yiihelpershtml; $this->title = '图书列表'; ?> <!-- 面包屑 --> <ol class="breadcrumb"> <li><a href="#" rel="external nofollow" rel="external nofollow" >home</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" >图书信息</a></li> <li class="active">图书列表</li> </ol> <?php echo gridview::widget([ 'dataprovider' => $data, //数据源 'filtermodel' => $searchmodel, //搜索列 'columns' => [ // ['filtermodel' => $searchmodel], ['class' => 'yiigridcheckboxcolumn'], //复选框列 ['attribute' => 'id'], ['attribute' => 'book_name',], ['attribute' => 'book_face','content'=>function($model){ // 图片显示 return html::img($model->book_face,['width'=>'50']); }], [ 'attribute' => 'type_name', 'value' => 'bookstype.type_name', //两表联查[书籍类型] ], ['class' => 'yiigridactioncolumn','header'=>'操作'], //动作列 ], 'pager' => [//自定义分页样式以及显示内容 'prevpagelabel'=>'上一页', 'nextpagelabel'=>'下一页', 'firstpagelabel' => '第一页', 'lastpagelabel' => '最后一页', 'options'=>['style'=>'margin-left:200px;','class'=>"pagination"], ], ]); ?>