public function getCMSFields()
{
$fields = parent::getCMSFields();
$fields->addFieldToTab("Root.Main", new TextField("Description", "Description", "", 100));
$conf = GridFieldConfig_RelationEditor::create(10);
$conf->addComponent($sortable = new GridFieldSortableRows('SortID'));
//Append new GalleryItems to the top
$sortable->setAppendToTop(true);
$field = TagField::create('GalleryTags', 'Gallery Tags', GalleryTag::get(), $this->GalleryTags())->setShouldLazyLoad(true)->setCanCreate(true);
// new tag DataObjects can be created;
$fields->addFieldToTab('Root.Tags', $field);
$fields->addFieldToTab('Root.MyAlbum', new GridField('GalleryItems', 'My Album', $this->GalleryItems(), $conf));
return $fields;
}
public function ActiveGalleryTags()
{
/**
* @TODO: think about caching this
* @TODO: Also currently these are not order
*
* */
$ids = array_values($this->Children()->column('ID'));
return GalleryTag::get()->distinct(true)->filterByCallback(function ($tag) use($ids) {
foreach ($tag->GalleryAlbums()->getIDList() as $id) {
if (in_array($id, $ids)) {
return true;
}
}
return false;
});
}