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frontend/widgets/MyListView.php 3.76 KB
f7089e23   Administrator   15.02.16
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  <?php
  /**
   * @link http://www.yiiframework.com/
   * @copyright Copyright (c) 2008 Yii Software LLC
   * @license http://www.yiiframework.com/license/
   */
  
  namespace frontend\widgets;
  
  use Yii;
  use yii\helpers\ArrayHelper;
  use yii\helpers\Html;
  use yii\widgets\ListView;
  
  /**
   * The ListView widget is used to display data from data
   * provider. Each data model is rendered using the view
   * specified.
   *
   * @author Qiang Xue <qiang.xue@gmail.com>
   * @since 2.0
   */
  class MyListView extends ListView
  {
      /**
       * @var array the HTML attributes for the container of the rendering result of each data model.
       * The "tag" element specifies the tag name of the container element and defaults to "div".
       * If "tag" is false, it means no container element will be rendered.
       * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
       */
      public $itemOptions = [];
      /**
       * @var string|callable the name of the view for rendering each data item, or a callback (e.g. an anonymous function)
       * for rendering each data item. If it specifies a view name, the following variables will
       * be available in the view:
       *
       * - `$model`: mixed, the data model
       * - `$key`: mixed, the key value associated with the data item
       * - `$index`: integer, the zero-based index of the data item in the items array returned by [[dataProvider]].
       * - `$widget`: ListView, this widget instance
       *
       * Note that the view name is resolved into the view file by the current context of the [[view]] object.
       *
       * If this property is specified as a callback, it should have the following signature:
       *
       * ~~~
       * function ($model, $key, $index, $widget)
       * ~~~
       */
      public $itemView;
      /**
       * @var array additional parameters to be passed to [[itemView]] when it is being rendered.
       * This property is used only when [[itemView]] is a string representing a view name.
       */
      public $viewParams = [];
      /**
       * @var string the HTML code to be displayed between any two consecutive items.
       */
      public $separator = "\n";
      /**
       * @var array the HTML attributes for the container tag of the list view.
       * The "tag" element specifies the tag name of the container element and defaults to "div".
       * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
       */
      public $options = ['class' => 'list-view'];
  
  
      /**
       * Renders all data models.
       * @return string the rendering result
       */
      public function renderItems()
      {
          $models = $this->dataProvider->getModels();
          $keys = $this->dataProvider->getKeys();
          $rows = [];
          foreach (array_values($models) as $index => $model) {
              $rows[] = $this->renderItem($model, $keys[$index], $index);
          }
  
          return implode($this->separator, $rows);
      }
  
      /**
       * Renders a single data model.
       * @param mixed $model the data model to be rendered
       * @param mixed $key the key value associated with the data model
       * @param integer $index the zero-based index of the data model in the model array returned by [[dataProvider]].
       * @return string the rendering result
       */
      public function renderItem($model, $key, $index)
      {
          if ($this->itemView === null) {
              $content = $key;
          } elseif (is_string($this->itemView)) {
              $content = $this->getView()->render($this->itemView, array_merge([
                  'model' => $model,
                  'key' => $key,
                  'index' => $index,
                  'widget' => $this,
              ], $this->viewParams));
          } else {
              $content = call_user_func($this->itemView, $model, $key, $index, $this);
          }
  
          return $content;
  
      }
  }