Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Tree: 38c6515d64
Fetching contributors…

Cannot retrieve contributors at this time

377 lines (303 sloc) 11.982 kB
<?php
/**
* This component provides a checkbox which when checked enables drag-and-drop re-ordering of elements displayed in a {@link GridField}
*
* @package forms
*/
class GridFieldSortableRows implements GridField_HTMLProvider, GridField_ActionProvider, GridField_DataManipulator {
protected $sortColumn;
/**
* @param String $sortColumn Column that should be used to update the sort information
*/
public function __construct($sortColumn) {
$this->sortColumn = $sortColumn;
}
/**
* 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)) {
$state->sortableToggle = false;
}
//Ensure user can edit
if(!singleton($gridField->getModelClass())->canEdit() || !$gridField->getList() || $gridField->getList()->Count()==0){
return array();
}
//Sort order toggle
$sortOrderToggle = Object::create(
'GridField_FormAction',
$gridField,
'sortablerows-toggle',
_t('GridFieldSortableRows.ALLOW_DRAG_DROP', '_Allow drag and drop re-ordering'),
'saveGridRowSort',
null
)->addExtraClass('sortablerows-toggle');
//Disable Pagenator
$disablePagenator = Object::create(
'GridField_FormAction',
$gridField,
'sortablerows-disablepagenator',
_t('GridFieldSortableRows.DISABLE_PAGINATOR', '_Disable Pagenator'),
'sortableRowsDisablePaginator',
null
)->addExtraClass('sortablerows-disablepagenator');
//Disable Pagenator
$sortToPage = Object::create(
'GridField_FormAction',
$gridField,
'sortablerows-sorttopage',
_t('GridFieldSortableRows.SORT_TO_PAGE', '_Sort To Page'),
'sortToPage',
null
)->addExtraClass('sortablerows-sorttopage');
$data = array('SortableToggle' => $sortOrderToggle,
'PagenatorToggle' => $disablePagenator,
'SortToPage' => $sortToPage,
'Checked' => ($state->sortableToggle == true ? ' checked = "checked"':''));
$forTemplate = new ArrayData($data);
//Inject Requirements
Requirements::css('SortableGridField/css/GridFieldSortableRows.css');
Requirements::javascript('SortableGridField/javascript/GridFieldSortableRows.js');
$args = array('Colspan' => count($gridField->getColumns()), 'ID' => $gridField->ID());
return array('header' => $forTemplate->renderWith('GridFieldSortableRows', $args));
}
/**
* Manipulate the datalist as needed by this grid modifier.
* @param GridField $gridField Grid Field Reference
* @param SS_List $dataList Data List to adjust
* @return DataList Modified Data List
*/
public function getManipulatedData(GridField $gridField, SS_List $dataList) {
$headerState = $gridField->State->GridFieldSortableHeader;
$state = $gridField->State->GridFieldSortableRows;
if ((!is_bool($state->sortableToggle) || $state->sortableToggle==false) && $headerState && !empty($headerState->SortColumn)) {
return $dataList;
}
if ($state->sortableToggle == true) {
$gridField->getConfig()->removeComponentsByType('GridFieldFilterHeader');
$gridField->getConfig()->removeComponentsByType('GridFieldSortableHeader');
}
//Detect and correct items with a sort column value of 0 (push to bottom)
$this->fixSortColumn($gridField, $dataList);
return $dataList->sort($this->sortColumn);
}
/**
* Detects and corrects items with a sort column value of 0, by appending them to the bottom of the list
* @param GridField $gridField Grid Field Reference
* @param SS_List $dataList Data List of items to be checked
*/
protected function fixSortColumn($gridField, SS_List $dataList) {
$list=clone $dataList;
$list->dataQuery()->limit(array());
$max = $list->Max($this->sortColumn);
if($list->where('"'.$this->sortColumn.'"=0')->Count()>0) {
//Start transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionStart();
}
$owner = $gridField->Form->getRecord();
$sortColumn = $this->sortColumn;
$i = 1;
$many_many = ($list instanceof ManyManyList);
if ($many_many) {
list($parentClass, $componentClass, $parentField, $componentField, $table) = $owner->many_many($gridField->getName());
}
//@TODO Need to optimize this to eliminate some of the resource load could use raw queries to be more efficient
foreach($list as $obj) {
if($many_many) {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn.'" = ' . ($max + $i)
. ' WHERE "' . $componentField . '" = ' . $obj->ID . ' AND "' . $parentField . '" = ' . $owner->ID);
}else {
$obj->$sortColumn = ($max + $i);
$obj->write();
}
$i++;
}
//End transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionEnd();
}
}
}
/**
* 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) {
return array('saveGridRowSort', 'sortableRowsDisablePaginator', 'sortToPage');
}
/**
* 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) {
$gridField->getConfig()->removeComponentsByType('GridFieldFilterHeader');
$gridField->getConfig()->removeComponentsByType('GridFieldSortableHeader');
}
if ($actionName == 'savegridrowsort') {
return $this->saveGridRowSort($gridField, $data);
} else if ($actionName == 'sorttopage') {
return $this->sortToPage($gridField, $data);
}
}
/**
* Handles saving of the row sort order
* @param GridField $gridField Grid Field Reference
* @param Array $data Data submitted in the request
*/
protected function saveGridRowSort(GridField $gridField, $data) {
if(!singleton($gridField->getModelClass())->canEdit()){
throw new ValidationException(_t('GridFieldSortableRows.EditPermissionsFailure', "No edit permissions"),0);
}
if (empty($data['Items'])) {
user_error('No items to sort', E_USER_ERROR);
}
$className = $gridField->getModelClass();
$owner = $gridField->Form->getRecord();
$items = clone $gridField->getList();
$many_many = ($items instanceof ManyManyList);
$sortColumn = $this->sortColumn;
$pageOffset = 0;
if ($paginator = $gridField->getConfig()->getComponentsByType('GridFieldPaginator')->First()) {
$pageState = $gridField->State->GridFieldPaginator;
if($pageState->currentPage && $pageState->currentPage>1) {
$pageOffset = $paginator->getItemsPerPage() * ($pageState->currentPage - 1);
}
}
if ($many_many) {
list($parentClass, $componentClass, $parentField, $componentField, $table) = $owner->many_many($gridField->getName());
}
//Start transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionStart();
}
//@TODO Need to optimize this to eliminate some of the resource load could use raw queries to be more efficient
$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 "' . $sortColumn.'" = ' . (($sort + 1) + $pageOffset)
. ' WHERE "' . $componentField . '" = ' . $id . ' AND "' . $parentField . '" = ' . $owner->ID);
} else {
$obj = $items->byID($data['Items'][$sort]);
$obj->$sortColumn = ($sort + 1) + $pageOffset;
$obj->write();
}
}
//End transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionEnd();
}
}
/**
* Handles sorting across pages
* @param GridField $gridField Grid Field Reference
* @param Array $data Data submitted in the request
*/
protected function sortToPage(GridField $gridField, $data) {
if (!$paginator = $gridField->getConfig()->getComponentsByType('GridFieldPaginator')->First()) {
user_error('Paginator not detected', E_USER_ERROR);
}
if (empty($data['ItemID'])) {
user_error('No item to sort', E_USER_ERROR);
}
if (empty($data['Target'])) {
user_error('No target page', E_USER_ERROR);
}
$className = $gridField->getModelClass();
$owner = $gridField->Form->getRecord();
$items = clone $gridField->getList();
$many_many = ($items instanceof ManyManyList);
$sortColumn = $this->sortColumn;
$targetItem = $items->byID(intval($data['ItemID']));
if (!$targetItem) {
user_error('Target item not found', E_USER_ERROR);
}
$currentPage = 1;
$pageState = $gridField->State->GridFieldPaginator;
if($pageState->currentPage && $pageState->currentPage>1) {
$currentPage = $pageState->currentPage;
}
if ($many_many) {
list($parentClass, $componentClass, $parentField, $componentField, $table) = $owner->many_many($gridField->getName());
}
if ($data['Target'] == 'previouspage') {
$sortPositions = $items->limit($paginator->getItemsPerPage() + 1, ($paginator->getItemsPerPage() * ($currentPage - 1)) - 1)->column($sortColumn);
} else if ($data['Target'] == 'nextpage') {
$sortPositions = $items->limit($paginator->getItemsPerPage() + 1, $paginator->getItemsPerPage() * ($currentPage - 1))->column($sortColumn);
} else {
user_error('Not implemented: '.$data['Target'], E_USER_ERROR);
}
//Start transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionStart();
}
if($data['Target']=='previouspage') {
if ($many_many) {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn.'" = ' . $sortPositions[0]
. ' WHERE "' . $componentField . '" = ' . $targetItem->ID . ' AND "' . $parentField . '" = ' . $owner->ID);
} else {
$targetItem->$sortColumn = $sortPositions[0];
$targetItem->write();
}
$i = 1;
foreach ($items as $obj) {
if ($obj->ID == $targetItem->ID) {
continue;
}
if ($many_many) {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn.'" = ' . $sortPositions[$i]
. ' WHERE "' . $componentField . '" = ' . $obj->ID . ' AND "' . $parentField . '" = ' . $owner->ID);
} else {
$obj->$sortColumn = $sortPositions[$i];
$obj->write();
}
$i++;
}
} else {
if ($many_many) {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn.'" = ' . $sortPositions[count($sortPositions) - 1]
. ' WHERE "' . $componentField . '" = ' . $targetItem->ID . ' AND "' . $parentField . '" = ' . $owner->ID);
} else {
$targetItem->$sortColumn = $sortPositions[count($sortPositions) - 1];
$targetItem->write();
}
$i = 0;
foreach ($items as $obj) {
if ($obj->ID == $targetItem->ID) {
continue;
}
if ($many_many) {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn.'" = ' . $sortPositions[$i]
. ' WHERE "' . $componentField . '" = ' . $obj->ID . ' AND "' . $parentField . '" = ' . $owner->ID);
} else {
$obj->$sortColumn = $sortPositions[$i];
$obj->write();
}
$i++;
}
}
//End transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionEnd();
}
}
}
?>
Jump to Line
Something went wrong with that request. Please try again.