/**
* @param int $folderID The ID of the folder to display.
* @return FormField
*/
protected function getListField($folderID)
{
// Generate the folder selection field.
/** @skipUpgrade */
$folderField = new TreeDropdownField('ParentID', _t('HTMLEditorField.FOLDER', 'Folder'), 'SilverStripe\\Assets\\Folder');
$folderField->setValue($folderID);
// Generate the file list field.
$config = GridFieldConfig::create();
$config->addComponent(new GridFieldSortableHeader());
$config->addComponent(new GridFieldFilterHeader());
$config->addComponent($colsComponent = new GridFieldDataColumns());
$colsComponent->setDisplayFields(array('StripThumbnail' => '', 'Title' => File::singleton()->fieldLabel('Title'), 'Created' => File::singleton()->fieldLabel('Created'), 'Size' => File::singleton()->fieldLabel('Size')));
$colsComponent->setFieldCasting(array('Created' => 'DBDatetime->Nice'));
// Set configurable pagination for file list field
$pageSize = Config::inst()->get(get_class($this), 'page_size');
$config->addComponent(new GridFieldPaginator($pageSize));
// If relation is to be autoset, we need to make sure we only list compatible objects.
$baseClass = $this->parent->getRelationAutosetClass();
// Create the data source for the list of files within the current directory.
$files = DataList::create($baseClass)->exclude('ClassName', 'SilverStripe\\Assets\\Folder');
if ($folderID) {
$files = $files->filter('ParentID', $folderID);
}
$fileField = new GridField('Files', false, $files, $config);
$fileField->setAttribute('data-selectable', true);
if ($this->parent->getAllowedMaxFileNumber() !== 1) {
$fileField->setAttribute('data-multiselect', true);
}
$selectComposite = new CompositeField($folderField, $fileField);
return $selectComposite;
}
