sortablegridfield/code/forms/GridFieldSortableRows.php

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PHP
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2012-05-09 19:14:34 +02:00
<?php
/**
* @package forms
*/
class GridFieldSortableRows implements GridField_HTMLProvider, GridField_ActionProvider {
/**
* Returns a map where the keys are fragment names and the values are pieces of HTML to add to these fragments.
* @param GridField $gridField Grid Field Reference
* @return {array} Map where the keys are fragment names and the values are pieces of HTML to add to these fragments.
*/
public function getHTMLFragments($gridField) {
$state=$gridField->State->GridFieldSortableRows;
if(!is_bool($state->sortableToggle)) {
$state->sortableToggle=false;
}
if(Object::has_extension($gridField->getModelClass(), 'GridFieldSortableObject')) {
//Sort order toggle
$sortOrderToggle=new GridField_FormAction($gridField, 'sortablerows_toggle', 'Allow drag and drop re-ordering', 'saveGridRowSort', null);
$sortOrderToggle->addExtraClass('sortablerows_toggle');
//Disable Pagenator
if($gridField->getConfig()->getComponentByType('GridFieldPaginator')) {
$disablePagenator=new GridField_FormAction($gridField, 'sortablerows_disablepagenator', 'Disable Pagenator', 'sortableRowsDisablePaginator', null);
$disablePagenator->addExtraClass('sortablerows_disablepagenator');
}else {
$disablePagenator=null;
}
$forTemplate=new ArrayData(array(
'SortableToggle'=>$sortOrderToggle,
'PagenatorToggle'=>$disablePagenator,
'Checked'=>($state->sortableToggle==true ? ' checked="checked"':'')
));
//Inject Requirements
Requirements::css('SortableGridField/css/GridFieldSortableRows.css');
Requirements::javascript('SortableGridField/javascript/GridFieldSortableRows.js');
return array(
'header'=>$forTemplate->renderWith('GridFieldSortableRows', array('Colspan'=>count($gridField->getColumns())))
);
}
return array();
}
/**
* Return a list of the actions handled by this action provider.
* @param GridField $gridField Grid Field Reference
* @return {array} Array with action identifier strings.
*/
public function getActions($gridField) {
if(Object::has_extension($gridField->getModelClass(), 'GridFieldSortableObject')) {
if($gridField->getConfig()->getComponentByType('GridFieldPaginator')) {
return array('saveGridRowSort', 'sortableRowsDisablePaginator');
}else {
return array('saveGridRowSort');
}
}
return array();
}
/**
* Handle an action on the given grid field.
* @param {GridField} $gridField Grid Field Reference
* @param {string} $actionName Action identifier, see {@link getActions()}.
* @param {array} $arguments Arguments relevant for this
* @param {array} $data All form data
*/
public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
$state=$gridField->State->GridFieldSortableRows;
if(!is_bool($state->sortableToggle)) {
$state->sortableToggle=false;
}else if($state->sortableToggle==true) {
if($gridField->getConfig()->getComponentsByType('GridFieldPaginator')) {
$gridField->getConfig()->removeComponentsByType('GridFieldPaginator');
$gridField->getConfig()->addComponent(new GridFieldFooter());
}
$gridField->getConfig()->removeComponentsByType('GridFieldFilterHeader');
$gridField->getConfig()->removeComponentsByType('GridFieldSortableHeader');
}
if(Object::has_extension($gridField->getModelClass(), 'GridFieldSortableObject')) {
if($actionName=='savegridrowsort') {
return $this->saveGridRowSort($gridField, $data);
}
}
}
/**
* Handles saving of the row sort order
* @param {GridField} $gridField Grid Field Reference
* @param {array} $data Data submitted in the request
*/
private function saveGridRowSort(GridField $gridField, $data) {
if(empty($data['Items'])) {
user_error('No items to sort', E_USER_ERROR);
}
$className=$gridField->getModelClass();
$ownerClass=$gridField->Form->Controller()->class;
$many_many=GridFieldSortableObject::is_sortable_many_many($className);
if($many_many) {
$candidates=singleton($ownerClass)->many_many();
if(is_array($candidates)) {
foreach($candidates as $name => $class)
if($class==$className) {
$relationName=$name;
break;
}
}
if(!isset($relationName)) {
return false;
}
list($parentClass, $componentClass, $parentField, $componentField, $table)=singleton($ownerClass)->many_many($relationName);
}
$data['Items']=explode(',', $data['Items']);
for($sort=0;$sort<count($data['Items']);$sort++) {
$id=intval($data['Items'][$sort]);
if($many_many) {
DB::query("UPDATE \"$table\" SET \"SortOrder\" = $sort WHERE \"{$className}ID\" = $id");
}else {
$obj=DataObject::get_by_id($className, $id);
$obj->SortOrder=$sort;
$obj->write();
}
}
}
}
?>