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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\base\InvalidConfigException;
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use yii\base\Widget;
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use yii\data\Sort;
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use yii\helpers\Html;
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/**
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* LinkSorter renders a list of sort links for the given sort definition.
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*
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* LinkSorter will generate a hyperlink for every attribute declared in [[sort]].
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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 LinkSorter extends Widget
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{
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/**
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* @var Sort the sort definition
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*/
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public $sort;
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/**
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* @var array HTML attributes for the sorter container tag.
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*/
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public $options = array('class' => 'sorter');
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/**
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* Initializes the sorter.
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*/
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public function init()
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{
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if ($this->sort === null) {
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throw new InvalidConfigException('The "sort" property must be set.');
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}
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}
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/**
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* Executes the widget.
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* This method renders the sort links.
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*/
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public function run()
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{
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echo $this->renderSortLinks();
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}
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/**
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* Renders the sort links.
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* @return string the rendering result
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*/
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protected function renderSortLinks()
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{
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$links = array();
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foreach (array_keys($this->sort->attributes) as $name) {
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$links[] = $this->sort->link($name);
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}
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return Html::ul($links, array('encode' => false));
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}
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}
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