tonyair/sortablegridfield
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sortablegridfield/code/forms/GridFieldSortableRows.php

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<?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;
protected $disable_selection=true;
protected $append_to_top=false;
protected $update_versioned_stage=null;
protected $custom_relation_name=null;
/**
* @param string $sortColumn Column that should be used to update the sort information
* @param bool $disableSelection Disable selection on the GridField when dragging
* @param string $updateVersionStage Name of the versioned stage to update this disabled by default unless this is set
* @param string $customRelatinoName Name of the relationship to use, if left null the name is determined from the GridField's name
*/
public function __construct($sortColumn, $disableSelection = true, $updateVersionStage = null, $customRelationName = null) {
$this->sortColumn = $sortColumn;
$this->disable_selection = $disableSelection;
$this->update_versioned_stage = $updateVersionStage;
$this->custom_relation_name = $customRelationName;
}
/**
* 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) {
$dataList = $gridField->getList();
if(class_exists('UnsavedRelationList') && $dataList instanceof UnsavedRelationList) {
return array();
}
$state = $gridField->State->GridFieldSortableRows;
if(!is_bool($state->sortableToggle)) {
$state->sortableToggle = false;
}
//Ensure user can edit
if(!singleton($gridField->getModelClass())->canEdit()){
return array();
}
//Sort order toggle
$sortOrderToggle = GridField_FormAction::create(
$gridField,
'sortablerows-toggle',
'sorttoggle',
'sortableRowsToggle',
null
)->addExtraClass('sortablerows-toggle');
$sortOrderSave = GridField_FormAction::create(
$gridField,
'sortablerows-savesort',
'savesort',
'saveGridRowSort',
null
)->addExtraClass('sortablerows-savesort');
//Sort to Page Action
$sortToPage = GridField_FormAction::create(
$gridField,
'sortablerows-sorttopage',
'sorttopage',
'sortToPage',
null
)->addExtraClass('sortablerows-sorttopage');
$data = array('SortableToggle' => $sortOrderToggle,
'SortOrderSave' => $sortOrderSave,
'SortToPage' => $sortToPage,
'Checked' => ($state->sortableToggle == true ? ' checked = "checked"':''),
'List' => $dataList);
$forTemplate = new ArrayData($data);
//Inject Requirements
$custom = Config::inst()->get('GridFieldSortableRows', 'Base');
$base = $custom ?: SORTABLE_GRIDFIELD_BASE;
Requirements::css($base . '/css/GridFieldSortableRows.css');
Requirements::javascript($base . '/javascript/GridFieldSortableRows.js');
$args = array('Colspan' => count($gridField->getColumns()), 'ID' => $gridField->ID(), 'DisableSelection' => $this->disable_selection);
$fragments=array('header' => $forTemplate->renderWith('GridFieldSortableRows', $args));
if($gridField->getConfig()->getComponentByType('GridFieldPaginator')) {
$fragments['after']=$forTemplate->renderWith('GridFieldSortableRows_paginator');
}
return $fragments;
}
/**
* 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) {
//Detect and correct items with a sort column value of 0 (push to bottom)
$this->fixSortColumn($gridField, $dataList);
$headerState = $gridField->State->GridFieldSortableHeader;
$state = $gridField->State->GridFieldSortableRows;
if ((!is_bool($state->sortableToggle) || $state->sortableToggle==false) && $headerState && !empty($headerState->SortColumn)) {
return $dataList->sort($this->sortColumn);
}
if ($state->sortableToggle == true) {
$gridField->getConfig()->removeComponentsByType('GridFieldFilterHeader');
$gridField->getConfig()->removeComponentsByType('GridFieldSortableHeader');
}
return $dataList->sort($this->sortColumn);
}
/**
* Sets if new records should be appended to the top or the bottom of the list
* @param bool $value Boolean true to append to the top false to append to the bottom
* @return GridFieldSortableRows Returns the current instance
*/
public function setAppendToTop($value) {
$this->append_to_top=$value;
return $this;
}
/**
* @param bool $value Boolean true to disable selection of table contents false to enable selection
* @return GridFieldSortableRows Returns the current instance
*/
public function setDisableSelection($value){
$this->disable_selection = $value;
return $this;
}
/**
* Sets the suffix of the versioned stage that should be updated along side the default stage
* @param string $value Versioned Stage to update this is disabled by default unless this is set
* @return GridFieldSortableRows Returns the current instance
*/
public function setUpdateVersionedStage($value) {
$this->update_versioned_stage=$value;
return $this;
}
/**
* Sets the name of the relationship to use, by default the name is determined from the GridField's name
* @param string $value Name of the relationship to use, by default the name is determined from the GridField's name
* @return GridFieldSortableRows Returns the current instance
*/
public function setCustomRelationName($value) {
$this->custom_relation_name=$value;
return $this;
}
/**
* 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) {
if(class_exists('UnsavedRelationList') && $dataList instanceof UnsavedRelationList) {
return;
}
$list=clone $dataList;
$list=$list->alterDataQuery(function($query, SS_List $tmplist) {
$query->limit(array());
return $query;
});
$many_many = ($list instanceof ManyManyList);
if (!$many_many) {
$sng=singleton($gridField->getModelClass());
$fieldType=$sng->db($this->sortColumn);
if(!$fieldType || !(strtolower($fieldType) == 'int' || is_subclass_of('Int', $fieldType))) {
if(is_array($fieldType)) {
user_error('Sort column '.$this->sortColumn.' could not be found in '.$gridField->getModelClass().'\'s ancestry', E_USER_ERROR);
}else {
user_error('Sort column '.$this->sortColumn.' must be an Int, column is of type '.$fieldType, E_USER_ERROR);
}
exit;
}
}
$max = $list->Max($this->sortColumn);
$list=$list->filter($this->sortColumn, 0)->sort("Created,ID");
if($list->Count()>0) {
$owner = $gridField->Form->getRecord();
$sortColumn = $this->sortColumn;
$i = 1;
if ($many_many) {
list($parentClass, $componentClass, $parentField, $componentField, $table) = $owner->many_many((!empty($this->custom_relation_name) ? $this->custom_relation_name:$gridField->getName()));
$extraFields=$owner->many_many_extraFields((!empty($this->custom_relation_name) ? $this->custom_relation_name:$gridField->getName()));
if(!$extraFields || !array_key_exists($this->sortColumn, $extraFields) || !($extraFields[$this->sortColumn]=='Int' || is_subclass_of('Int', $extraFields[$this->sortColumn]))) {
user_error('Sort column '.$this->sortColumn.' must be an Int, column is of type '.$extraFields[$this->sortColumn], E_USER_ERROR);
exit;
}
}else {
//Find table containing the sort column
$table=false;
$class=$gridField->getModelClass();
$db = Config::inst()->get($class, "db", CONFIG::UNINHERITED);
if(!empty($db) && array_key_exists($sortColumn, $db)) {
$table=$class;
}else {
$classes=ClassInfo::ancestry($class, true);
foreach($classes as $class) {
$db = Config::inst()->get($class, "db", CONFIG::UNINHERITED);
if(!empty($db) && array_key_exists($sortColumn, $db)) {
$table=$class;
break;
}
}
}
if($table===false) {
user_error('Sort column '.$this->sortColumn.' could not be found in '.$gridField->getModelClass().'\'s ancestry', E_USER_ERROR);
exit;
}
$baseDataClass=ClassInfo::baseDataClass($gridField->getModelClass());
}
//Start transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionStart();
}
$idCondition=null;
if($this->append_to_top && !($list instanceof RelationList)) {
$idCondition='"ID" IN(\''.implode("','", $dataList->getIDList()).'\')';
}
if($this->append_to_top) {
$topIncremented=array();
}
foreach($list as $obj) {
if($many_many) {
if($this->append_to_top) {
//Upgrade all the records (including the last inserted from 0 to 1)
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn . '" = "' . $sortColumn .'"+1'
. ' WHERE "' . $parentField . '" = ' . $owner->ID . (!empty($topIncremented) ? ' AND "' . $componentField . '" NOT IN(\''.implode('\',\'', $topIncremented).'\')':''));
$topIncremented[]=$obj->ID;
}else {
//Append the last record to the bottom
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn .'" = ' . ($max + $i)
. ' WHERE "' . $componentField . '" = ' . $obj->ID . ' AND "' . $parentField . '" = ' . $owner->ID);
}
}else if($this->append_to_top) {
//Upgrade all the records (including the last inserted from 0 to 1)
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn . '" = "' . $sortColumn .'"+1'
. ' WHERE '.($list instanceof RelationList ? '"' . $list->foreignKey . '" = '. $owner->ID:$idCondition) . (!empty($topIncremented) ? ' AND "ID" NOT IN(\''.implode('\',\'', $topIncremented).'\')':''));
//LastEdited
DB::query('UPDATE "' . $baseDataClass
. '" SET "LastEdited" = \'' . date('Y-m-d H:i:s') . '\''
. ' WHERE '.($list instanceof RelationList ? '"' . $list->foreignKey . '" = '. $owner->ID:$idCondition) . (!empty($topIncremented) ? ' AND "ID" NOT IN(\''.implode('\',\'', $topIncremented).'\')':''));
if($this->update_versioned_stage && class_exists($table) && Object::has_extension($table, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn . '" = "' . $sortColumn .'"+1'
. ' WHERE '. ($list instanceof RelationList ? '"' . $list->foreignKey . '" = '. $owner->ID:$idCondition) . (!empty($topIncremented) ? ' AND "ID" NOT IN(\''.implode('\',\'', $topIncremented).'\')':''));
if(Object::has_extension($baseDataClass, 'Versioned')) {
DB::query('UPDATE "' . $baseDataClass . '_' . $this->update_versioned_stage
. '" SET "LastEdited" = \'' . date('Y-m-d H:i:s') . '\''
. ' WHERE ' . ($list instanceof RelationList ? '"' . $list->foreignKey . '" = '. $owner->ID:$idCondition) . (!empty($topIncremented) ? ' AND "ID" NOT IN(\''.implode('\',\'', $topIncremented).'\')':''));
}
}
$topIncremented[]=$obj->ID;
}else {
//Append the last record to the bottom
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn . '" = ' . ($max + $i)
. ' WHERE "ID" = '. $obj->ID);
//LastEdited
DB::query('UPDATE "' . $baseDataClass
. '" SET "LastEdited" = \'' . date('Y-m-d H:i:s') . '\''
. ' WHERE "ID" = '. $obj->ID);
if($this->update_versioned_stage && class_exists($table) && Object::has_extension($table, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn . '" = ' . ($max + $i)
. ' WHERE "ID" = '. $obj->ID);
if(Object::has_extension($baseDataClass, 'Versioned')) {
DB::query('UPDATE "' . $baseDataClass . '_' . $this->update_versioned_stage
. '" SET "LastEdited" = \'' . date('Y-m-d H:i:s') . '\''
. ' WHERE "ID" = '. $obj->ID);
}
}
}
$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', 'sortableRowsToggle', '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) {
$dataList = $gridField->getList();
if(class_exists('UnsavedRelationList') && $dataList instanceof UnsavedRelationList) {
user_error('Cannot sort an UnsavedRelationList', E_USER_ERROR);
return;
}
if(!singleton($gridField->getModelClass())->canEdit()){
throw new ValidationException(_t('GridFieldSortableRows.EditPermissionsFailure', "No edit permissions"),0);
}
if (empty($data['ItemIDs'])) {
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 && is_int($pageState->currentPage) && $pageState->currentPage>1) {
$pageOffset = $paginator->getItemsPerPage() * ($pageState->currentPage - 1);
}
}
if ($many_many) {
list($parentClass, $componentClass, $parentField, $componentField, $table) = $owner->many_many((!empty($this->custom_relation_name) ? $this->custom_relation_name:$gridField->getName()));
}else {
//Find table containing the sort column
$table=false;
$class=$gridField->getModelClass();
$db = Config::inst()->get($class, "db", CONFIG::UNINHERITED);
if(!empty($db) && array_key_exists($sortColumn, $db)) {
$table=$class;
}else {
$classes=ClassInfo::ancestry($class, true);
foreach($classes as $class) {
$db = Config::inst()->get($class, "db", CONFIG::UNINHERITED);
if(!empty($db) && array_key_exists($sortColumn, $db)) {
$table=$class;
break;
}
}
}
if($table===false) {
user_error('Sort column '.$this->sortColumn.' could not be found in '.$gridField->getModelClass().'\'s ancestry', E_USER_ERROR);
exit;
}
$baseDataClass=ClassInfo::baseDataClass($gridField->getModelClass());
}
//Event to notify the Controller or owner DataObject before list sort
if($owner && $owner instanceof DataObject && method_exists($owner, 'onBeforeGridFieldRowSort')) {
$owner->onBeforeGridFieldRowSort(clone $items);
}else if(Controller::has_curr() && Controller::curr() instanceof ModelAdmin && method_exists(Controller::curr(), 'onBeforeGridFieldRowSort')) {
Controller::curr()->onBeforeGridFieldRowSort(clone $items);
}
//Start transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionStart();
}
//Perform sorting
$ids = explode(',', $data['ItemIDs']);
for($sort = 0;$sort<count($ids);$sort++) {
$id = intval($ids[$sort]);
if ($many_many) {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn.'" = ' . (($sort + 1) + $pageOffset)
. ' WHERE "' . $componentField . '" = ' . $id . ' AND "' . $parentField . '" = ' . $owner->ID);
} else {
DB::query('UPDATE "' . $table
. '" SET "' . $sortColumn . '" = ' . (($sort + 1) + $pageOffset)
. ' WHERE "ID" = '. $id);
DB::query('UPDATE "' . $baseDataClass
. '" SET "LastEdited" = \'' . date('Y-m-d H:i:s') . '\''
. ' WHERE "ID" = '. $id);
if($this->update_versioned_stage && class_exists($table) && Object::has_extension($table, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn . '" = ' . (($sort + 1) + $pageOffset)
. ' WHERE "ID" = '. $id);
if(Object::has_extension($baseDataClass, 'Versioned')) {
DB::query('UPDATE "' . $baseDataClass . '_' . $this->update_versioned_stage
. '" SET "LastEdited" = \'' . date('Y-m-d H:i:s') . '\''
. ' WHERE "ID" = '. $id);
}
}
}
}
//End transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionEnd();
}
//Event to notify the Controller or owner DataObject after list sort
if($owner && $owner instanceof DataObject && method_exists($owner, 'onAfterGridFieldRowSort')) {
$owner->onAfterGridFieldRowSort(clone $items);
}else if(Controller::has_curr() && Controller::curr() instanceof ModelAdmin && method_exists(Controller::curr(), 'onAfterGridFieldRowSort')) {
Controller::curr()->onAfterGridFieldRowSort(clone $items);
}
}
/**
* 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) = $owner->many_many((!empty($this->custom_relation_name) ? $this->custom_relation_name:$gridField->getName()));
}
if ($data['Target'] == 'previouspage') {
$items = $items->limit($paginator->getItemsPerPage() + 1, ($paginator->getItemsPerPage() * ($currentPage - 1)) - 1);
} else if ($data['Target'] == 'nextpage') {
$items = $items->limit($paginator->getItemsPerPage() + 1, $paginator->getItemsPerPage() * ($currentPage - 1));
} else {
user_error('Not implemented: '.$data['Target'], E_USER_ERROR);
}
$sortPositions = $items->column($sortColumn);
//Event to notify the Controller or owner DataObject before list sort
if($owner && $owner instanceof DataObject && method_exists($owner, 'onBeforeGridFieldPageSort')) {
$owner->onBeforeGridFieldPageSort(clone $items);
}else if(Controller::has_curr() && Controller::curr() instanceof ModelAdmin && method_exists(Controller::curr(), 'onBeforeGridFieldPageSort')) {
Controller::curr()->onBeforeGridFieldPageSort(clone $items);
}
//Find the sort column
if($this->update_versioned_stage && Object::has_extension($className, 'Versioned')) {
$table=false;
$classes=ClassInfo::ancestry($className, true);
foreach($classes as $class) {
$db = Config::inst()->get($className, "db", CONFIG::UNINHERITED);
if(!empty($db) && array_key_exists($sortColumn, $db)) {
$table=$class;
break;
}
}
if($table===false) {
user_error('Sort column '.$this->sortColumn.' could not be found in '.$gridField->getModelClass().'\'s ancestry', E_USER_ERROR);
exit;
}
}
//Start transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionStart();
}
if($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];
$targetItem->write();
if($this->update_versioned_stage && Object::has_extension($className, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn.'" = ' . $sortPositions[0]
. ' WHERE "ID" = ' . $targetItem->ID);
}
}
$i = 1;
foreach ($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];
$obj->write();
if($this->update_versioned_stage && Object::has_extension($className, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn.'" = ' . $sortPositions[$i]
. ' WHERE "ID" = ' . $obj->ID);
}
}
$i++;
}
} else {
if ($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];
$targetItem->write();
if($this->update_versioned_stage && Object::has_extension($className, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn.'" = ' . $sortPositions[count($sortPositions) - 1]
. ' WHERE "ID" = ' . $targetItem->ID);
}
}
$i = 0;
foreach ($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];
$obj->write();
if($this->update_versioned_stage && Object::has_extension($className, 'Versioned')) {
DB::query('UPDATE "' . $table . '_' . $this->update_versioned_stage
. '" SET "' . $sortColumn.'" = ' . $sortPositions[$i]
. ' WHERE "ID" = ' . $obj->ID);
}
}
$i++;
}
}
//End transaction if supported
if(DB::getConn()->supportsTransactions()) {
DB::getConn()->transactionEnd();
}
//Event to notify the Controller or owner DataObject after list sort
if($owner && $owner instanceof DataObject && method_exists($owner, 'onAfterGridFieldPageSort')) {
$owner->onAfterGridFieldPageSort(clone $items);
}else if(Controller::has_curr() && Controller::curr() instanceof ModelAdmin && method_exists(Controller::curr(), 'onAfterGridFieldPageSort')) {
Controller::curr()->onAfterGridFieldPageSort(clone $items);
}
}
}
?>
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