yii2实现分页，带搜索的分页功能示例

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

<?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

<?php

namespace 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：

<?php
//other code
use 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：

<?php
use yii\widgets\LinkPager;
use yii\helpers\Html;
use yii\helpers\Url;
//other code
foreach ($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：

<?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：

<?php
use 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：

<?php
public function actionIndex()
{
 $searchModel = new ArticleSearch();
 $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

  return $this->render('index', [
    'searchModel' => $searchModel,
    'dataProvider' => $dataProvider,
  ]);
 }
?>

视图：

<?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

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