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<?php
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/**
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* @author Dmitriy Ostashev <[email protected]>
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* @property string $actionUrl
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*/
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class BPagination extends CPagination
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{
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const MAX_PAGE_SIZE = PHP_INT_MAX;
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/**
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* Массив элементов, используемых для вывода
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* в форме вариантов отображения элементов страниц
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* @var array
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*/
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public $pageSizeList = [10 => 10, 50 => 50, 100 => 100, 500 => 500, 1000 => 1000, 5000 => 5000, self::MAX_PAGE_SIZE => 'Все'];
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/** @var int Идентефикатор переменной кол-ва элементов на странице */
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public $pageSizeVar;
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/** @var string Url сабмита формы - выбора кол-ва элементов на странице */
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protected $_actionUrl;
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protected $_pageSize = self::DEFAULT_PAGE_SIZE;
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protected $_itemCount = 0;
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public function getPageSize()
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{
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if( !empty($_GET[$this->pageSizeVar]) )
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$this->_pageSize = $_GET[$this->pageSizeVar];
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return (int)$this->_pageSize === 0 ? self::DEFAULT_PAGE_SIZE : $this->_pageSize;
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}
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/**
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* @param $val
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*/
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public function setActionUrl($val)
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{
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$this->_actionUrl = $val;
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}
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/**
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* @return string
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*/
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public function getActionUrl()
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{
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if( $this->_actionUrl === null )
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{
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$route = Yii::app()->controller instanceof CController ? Yii::app()->controller->route : '';
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$params = $_GET;
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unset($params[$this->pageSizeVar], $params['ajax']);
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$this->_actionUrl = Yii::app()->createUrl($route, $params);
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}
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return $this->_actionUrl;
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}
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/**
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* @return integer number of pages
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*/
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public function getPageCount()
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{
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return (int)(($this->_itemCount + $this->_pageSize - 1) / $this->_pageSize);
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}
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/**
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* @param integer $value total number of items.
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*/
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public function setItemCount($value)
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{
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if( ($this->_itemCount = $value) < 0 )
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$this->_itemCount = 0;
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}
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/**
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* Создание формы для отображения вариантов количества элементов
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* @return string of form
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*/
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public function getPageSizeForm()
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{
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$formProperties = ['class' => 'page-size'];
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$form = CHtml::beginForm($this->actionUrl, 'get', $formProperties);
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$form .= CHtml::tag('span', ['class' => 'page-size-title'], 'Отображать по: ');
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$form .= CHtml::dropDownList($this->pageSizeVar, $this->getPageSize(), $this->pageSizeList);
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$form .= CHtml::endForm();
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$formChangeHandler = <<<JS
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$('body').on('change', '.{$formProperties['class']} select', function(){
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if ( window.History.enabled ) {
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var url = $(this).parents('form').attr('action').split('?');
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var params = url[1] === undefined ? [] : $.deparam.querystring('?'+url[1]);
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params[$(this).attr('id')] = $(this).val();
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window.History.pushState(null, document.title, decodeURIComponent($.param.querystring(url[0], params)));
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} else {
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$(this).parents('.{$formProperties['class']}').submit();
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}
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});
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JS;
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Yii::app()->getClientScript()->registerScript('pageSizeChangeHandler', $formChangeHandler, CClientScript::POS_READY);
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return $form;
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}
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} |
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: