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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 Closure; |
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use yii\helpers\ArrayHelper; |
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use yii\helpers\Html; |
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/** |
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* The ListView widget is used to display data from data |
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* provider. Each data model is rendered using the view |
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* specified. |
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* |
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* For more details and usage information on ListView, see the [guide article on data widgets](guide:output-data-widgets). |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class ListView extends BaseListView |
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{ |
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/** |
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* @var array|Closure the HTML attributes for the container of the rendering result of each data model. |
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* This can be either an array specifying the common HTML attributes for rendering each data item, |
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* or an anonymous function that returns an array of the HTML attributes. The anonymous function will be |
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* called once for every data model returned by [[dataProvider]]. |
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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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* If this property is specified as an anonymous function, it should have the following signature: |
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* |
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* ```php |
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* function ($model, $key, $index, $widget) |
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* ``` |
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* |
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* @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. |
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*/ |
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public $itemOptions = []; |
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/** |
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* @var string|callable the name of the view for rendering each data item, or a callback (e.g. an anonymous function) |
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* for rendering each data item. If it specifies a view name, the following variables will |
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* be available in the view: |
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* |
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* - `$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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* - `$widget`: ListView, this widget instance |
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* |
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* Note that the view name is resolved into the view file by the current context of the [[view]] object. |
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* |
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* If this property is specified as a callback, it should have the following signature: |
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* |
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* ```php |
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* function ($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 array additional parameters to be passed to [[itemView]] when it is being rendered. |
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* This property is used only when [[itemView]] is a string representing a view name. |
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*/ |
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public $viewParams = []; |
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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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* @var array the HTML attributes for the container tag of the list view. |
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* The "tag" element specifies the tag name of the container element and defaults to "div". |
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* @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. |
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*/ |
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public $options = ['class' => 'list-view']; |
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/** |
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* Renders all data models. |
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* @return string the rendering result |
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*/ |
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public function renderItems() |
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{ |
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$models = $this->dataProvider->getModels(); |
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$keys = $this->dataProvider->getKeys(); |
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$rows = []; |
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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 int $index the zero-based index of the data model in the model array returned by [[dataProvider]]. |
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* @return string the rendering result |
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*/ |
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public function renderItem($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_merge([ |
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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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], $this->viewParams)); |
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} else { |
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$content = call_user_func($this->itemView, $model, $key, $index, $this); |
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} |
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if ($this->itemOptions instanceof Closure) { |
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$options = call_user_func($this->itemOptions, $model, $key, $index, $this); |
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} else { |
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$options = $this->itemOptions; |
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} |
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$tag = ArrayHelper::remove($options, 'tag', 'div'); |
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$options['data-key'] = is_array($key) ? json_encode($key, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) : (string) $key; |
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return Html::tag($tag, $content, $options); |
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} |
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} |
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yiisoft /
yii2
