/**
* Adds empty content in various languages to the category entity if necessary
* Instantiates the forms and binds it to the data
* @param Category $category
* @param null &$form Referenced
* @param bool $isNew
* @return bool|JsonModel
*/
protected function prepareFormAndLanguage($category, &$form, $isNew = false)
{
$serviceLocator = $this->getServiceLocator();
$entityManager = $serviceLocator->get('entity-manager');
//add empty language content to the collection, so that input fields are created
$this->addEmptyContent($category);
$listingContent = !$isNew ? $category->getContent() : null;
$form = new CategoryForm($entityManager, $listingContent);
$categoryTree = $this->getServiceLocator()->get('category-tree');
$category2 = !$isNew ? $category : null;
$parentElement = $form->get('parent');
$parentElement->setEmptyOption($this->translator->translate('Top'));
$parentElement->setValueOptions($categoryTree->getSelectOptions($category2));
$form->bind($category);
return true;
}
