public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('publisher', 'entity', ['class' => 'Ojs\\JournalBundle\\Entity\\Publisher', 'label' => 'publisher', 'multiple' => false, 'expanded' => false, 'required' => true, 'placeholder' => 'select.publisher', 'attr' => array("class" => "select2-element")])->add('user', 'entity', ['class' => 'Ojs\\UserBundle\\Entity\\User', 'label' => 'user', 'multiple' => false, 'expanded' => false, 'required' => true, 'placeholder' => 'user', 'attr' => array("class" => "select2-element")]);
}