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