mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
121 lines
2.9 KiB
PHP
Executable File
121 lines
2.9 KiB
PHP
Executable File
<?php
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/**
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* GridFieldPaginator paginates the gridfields list and adds controlls to the
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* bottom of the gridfield.
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*
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* @package sapphire
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* @subpackage fields-relational
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*/
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class GridFieldPaginator implements GridField_HTMLProvider, GridField_DataManipulator, GridField_ActionProvider {
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/**
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*
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* @var int
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*/
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protected $currentPage = 1;
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/**
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*
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* @var int
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*/
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protected $itemsPerPage = 25;
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/**
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* Which template to use for rendering
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*
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* @var string
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*/
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protected $itemClass = 'GridFieldPaginator_Row';
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/**
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*
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* @param int $itemsPerPage - How many items should be displayed per page
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*/
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public function __construct($itemsPerPage=25) {
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$this->itemsPerPage = $itemsPerPage;
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}
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/**
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*
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* @param GridField $gridField
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* @return array
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*/
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public function getActions($gridField) {
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return array('paginate');
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}
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/**
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*
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* @param GridField $gridField
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* @param string $actionName
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* @param string $arguments
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* @param array $data
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* @return void
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*/
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public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
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if($actionName !== 'paginate') {
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return;
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}
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$state = $gridField->State->GridFieldPaginator;
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$this->currentPage = $state->currentPage = (int)$arguments;
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}
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/**
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*
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* @param GridField $gridField
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* @param SS_List $dataList
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* @return SS_List
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*/
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public function getManipulatedData(GridField $gridField, SS_List $dataList) {
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if(!$this->getListPaginatable($dataList)) {
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return $dataList;
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}
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if(!$this->currentPage) {
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return $dataList->getRange(0, (int)$this->itemsPerPage);
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}
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$startRow = $this->itemsPerPage*($this->currentPage-1);
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return $dataList->getRange((int)$startRow, (int)$this->itemsPerPage);
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}
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/**
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*
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* @param GridField $gridField
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* @return array
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*/
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public function getHTMLFragments($gridField) {
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$forTemplate = new ArrayData(array());
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$forTemplate->Fields = new ArrayList;
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$countList = clone $gridField->List;
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$totalRows = $countList->limit(null)->count();
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$totalPages = ceil($totalRows/$this->itemsPerPage);
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for($idx=1; $idx<=$totalPages; $idx++) {
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if($idx == $this->currentPage) {
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$field = new LiteralField('pagination_'.$idx, $idx);
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} else {
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$field = new GridField_Action($gridField, 'pagination_'.$idx, $idx, 'paginate', $idx);
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$field->addExtraClass('ss-gridfield-button');
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}
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$forTemplate->Fields->push($field);
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}
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if(!$forTemplate->Fields->Count()) {
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return array();
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}
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return array(
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'footer' => $forTemplate->renderWith('GridFieldPaginator_Row', array('Colspan'=>count($gridField->getColumns()))),
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);
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}
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/** Duck check to see if list support methods we need to paginate */
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protected function getListPaginatable(SS_List $list) {
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// If no list yet, not paginatable
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if (!$list) return false;
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// Check for methods we use
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if(!method_exists($list, 'getRange')) return false;
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if(!method_exists($list, 'limit')) return false;
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// Default it true
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return true;
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}
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}
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