silverstripe-cms/code/WidgetAreaEditor.php

102 lines
2.6 KiB
PHP
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<?php
/**
* Special field type for selecting and configuring widgets on a page.
* @package cms
* @subpackage content
*/
class WidgetAreaEditor extends FormField {
function FieldHolder() {
return $this->renderWith("WidgetAreaEditor");
}
function AvailableWidgets() {
$classes = ClassInfo::subclassesFor('Widget');
array_shift($classes);
$widgets= new DataObjectSet();
foreach($classes as $class) {
$widgets->push(singleton($class));
}
return $widgets;
}
function UsedWidgets() {
$relationName = $this->name;
$widgets = $this->form->getRecord()->$relationName()->Widgets();
return $widgets;
}
function IdxField() {
return $this->id() . 'ID';
}
function Value() {
$relationName = $this->name;
return $this->form->getRecord()->$relationName()->ID;
}
function saveInto(DataObject $record) {
$name = $this->name;
$idName = $name . "ID";
$widgetarea = $record->$name();
$widgetarea->write();
$record->$idName = $widgetarea->ID;
$widgets = $widgetarea->Widgets();
// store the field IDs and delete the missing fields
// alternatively, we could delete all the fields and re add them
$missingWidgets = array();
foreach($widgets as $existingWidget){
$missingWidgets[$existingWidget->ID] = $existingWidget;
}
// write the new widgets to the database
if(isset($_REQUEST['Widget'])){
foreach(array_keys( $_REQUEST['Widget'] ) as $newWidgetID ) {
$newWidgetData = $_REQUEST['Widget'][$newWidgetID];
// `ParentID`=0 is for the new page
$widget = DataObject::get_one( 'Widget', "(`ParentID`='{$record->$name()->ID}' OR `ParentID`=0) AND `Widget`.`ID`='$newWidgetID'" );
// check if we are updating an existing widget
if($widget && isset($missingWidgets[$widget->ID]))
unset($missingWidgets[$widget->ID] );
// create a new object
if(!$widget && !empty($newWidgetData['Type']) && class_exists($newWidgetData['Type'])) {
$widget = new $newWidgetData['Type']();
$widget->ID = 0;
$widget->ParentID = $record->$name()->ID;
if(!is_subclass_of($widget, 'Widget')) {
$widget = null;
}
}
if($widget) {
if($widget->ParentID == 0) {
$widget->ParentID = $record->$name()->ID;
}
$widget->populateFromPostData($newWidgetData);
//$editable->write();
}
}
}
// remove the fields not saved
foreach($missingWidgets as $removedWidget) {
if(isset($removedWidget) && is_numeric($removedWidget->ID)) $removedWidget->delete();
}
}
}
?>