一、模型配置
事例会用到三个models。文章类别表和文章表用gii生成下即可，最后一个是搜索验证模型。其中，只讲下一个联表和搜索验证。其他不用操作。
1.文章表关联
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<?php//...other code//关联public function getCate(){ return $this->hasOne(ArticleCate::className(),['id' => 'cid']); }?> |
2.搜索模型
common/models/search/创建ArticleSearch.php
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<?phpnamespace common\models\search;use Yii;use yii\base\Model;use yii\data\ActiveDataProvider;use common\models\Article;class ArticleSearch extends Article{ //public $cname;//文章类别名 /** * @inheritdoc */ public function rules() { return [ [['cid','created_at', 'updated_at'], 'integer'], [['id', 'desc','title','cover','content'], 'safe'], ]; } /** * @inheritdoc */ public function scenarios() { // bypass scenarios() implementation in the parent class return Model::scenarios(); } //搜索 public function search($params) { $query = Article::find(); // $query->joinWith(['cate']);//关联文章类别表 // $query->joinWith(['author' => function($query) { $query->from(['author' => 'users']); }]); $dataProvider = new ActiveDataProvider([ 'query' => $query, 'pagination' => [ 'pageSize' => 2, ], ]); // 从参数的数据中加载过滤条件，并验证 $this->load($params); if (!$this->validate()) { // uncomment the following line if you do not want to any records when validation fails // $query->where('0=1'); return $dataProvider; } // 增加过滤条件来调整查询对象 $query->andFilterWhere([ // 'cname' => $this->cate.cname, 'title' => $this->title, ]); $query->andFilterWhere(['like', 'title', $this->title]); //$query->andFilterWhere(['like', 'cate.cname', $this->cname]) ; return $dataProvider; }} |
二、分页使用
方式一
首先在控制器的动作中，创建分页对象并且为其填充数据：
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<?php//other codeuse yii\data\Pagination;public function actionArticlelist() { //分页读取类别数据 $model = Article::find()->with('cate'); $pagination = new Pagination([ 'defaultPageSize' => 3, 'totalCount' => $model->count(), ]); $model = $model->orderBy('id ASC') ->offset($pagination->offset) ->limit($pagination->limit) ->all(); return $this->render('index', [ 'model' => $model, 'pagination' => $pagination, ]); }?> |
其次在视图中我们输出的模板为当前页并通过分页对象链接到该页：
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<?phpuse yii\widgets\LinkPager;use yii\helpers\Html;use yii\helpers\Url;//other codeforeach ($models as $model) { // 在这里显示 $model}// 显示分页echo LinkPager::widget([ 'pagination' => $pagination, 'firstPageLabel'=>"First", 'prevPageLabel'=>'Prev', 'nextPageLabel'=>'Next', 'lastPageLabel'=>'Last',]);?> |
方式二
控制器：
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<?php $query = Article::find()->with('cate'); $provider = new ActiveDataProvider([ 'query' => $query, 'pagination' => [ 'pageSize' => 3, ], 'sort' => [ 'defaultOrder' => [ //'created_at' => SORT_DESC, //'title' => SORT_ASC, ] ], ]); return $this->render('index', [ 'model' => $query, 'dataProvider' => $provider ]);?> |
视图：
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<?phpuse yii\grid\GridView;echo GridView::widget([ 'dataProvider' => $dataProvider, //每列都有搜索框 控制器传过来$searchModel = new ArticleSearch(); //'filterModel' => $searchModel, 'layout'=> '{items}<div class="text-right tooltip-demo">{pager}</div>', 'pager'=>[ //'options'=>['class'=>'hidden']//关闭自带分页 'firstPageLabel'=>"First", 'prevPageLabel'=>'Prev', 'nextPageLabel'=>'Next', 'lastPageLabel'=>'Last', ], 'columns' => [ //['class' => 'yii\grid\SerialColumn'],//序列号从1开始 // 数据提供者中所含数据所定义的简单的列 // 使用的是模型的列的数据 'id', 'username', ['label'=>'文章类别', /*'attribute' => 'cid',产生一个a标签,点击可排序*/ 'value' => 'cate.cname' ], ['label'=>'发布日期','format' => ['date', 'php:Y-m-d'],'value' => 'created_at'], // 更复杂的列数据 ['label'=>'封面图','format'=>'raw','value'=>function($m){ return Html::img($m->cover,['class' => 'img-circle','width' => 30]); }], [ 'class' => 'yii\grid\DataColumn', //由于是默认类型，可以省略 'value' => function ($data) { return $data->name; // 如果是数组数据则为 $data['name'] ，例如，使用 SqlDataProvider 的情形。 }, ], [ 'class' => 'yii\grid\ActionColumn', 'header' => '操作', 'template' => '{delete} {update}',//只需要展示删除和更新 /*'headerOptions' => ['width' => '80'],*/ 'buttons' => [ 'delete' => function($url, $model, $key){ return Html::a('<i class="glyphicon glyphicon-trash"></i> 删除', ['artdel', 'id' => $key], ['class' => 'btn btn-default btn-xs', 'data' => ['confirm' => '你确定要删除文章吗？',] ]); }, 'update' => function($url, $model, $key){ return Html::a('<i class="fa fa-file"></i> 更新', ['artedit', 'id' => $key], ['class' => 'btn btn-default btn-xs']); }, ], ], ],]);?> |
三、搜索带分页功能
- 创建搜索模型（前面己做）
- 控制传入数据
- 视图显示控制器代码：
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<?phppublic function actionIndex(){ $searchModel = new ArticleSearch(); $dataProvider = $searchModel->search(Yii::$app->request->queryParams); return $this->render('index', [ 'searchModel' => $searchModel, 'dataProvider' => $dataProvider, ]); }?> |
视图：
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<?php $form = ActiveForm::begin([ 'action' => ['index'], 'method' => 'get', 'id' => 'cateadd-form', 'options' => ['class' => 'form-horizontal'],]); ?> <?= $form->field($searchModel, 'title',[ 'options'=>['class'=>''], 'inputOptions' => ['placeholder' => '文章搜索','class' => 'input-sm form-control'],])->label(false) ?> <?= Html::submitButton('Go!', ['class' => 'btn btn-sm btn-primary']) ?><?php ActiveForm::end(); ?><?= GridView::widget([ 'dataProvider' => $dataProvider, 'layout'=> '{items}<div class="text-right tooltip-demo">{pager}</div>', 'pager'=>[ //'options'=>['class'=>'hidden']//关闭自带分页 'firstPageLabel'=>"First", 'prevPageLabel'=>'Prev', 'nextPageLabel'=>'Next', 'lastPageLabel'=>'Last', ], //这部分和上面的分页是一样的 |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
