Symfony的给类选项的EntityType元件

Question

我有领域中的实体类型（诺姆，ID，id_Categoria，id_tipo） id_tipo具有值1,2或3

$builder->add('idTipologiaEsame', EntityType::class, array(
     'placeholder' => 'tipologia esame', 
       'label' => false, 
       'mapped' => false, 
     'required' => false, 

     'class' => 'AppBundle:Nome_esame', 
       'choice_label' => 'nome', 
       'group_by' => 'idCategoriaEsame.tipo', 
      )) 

我的目标是提供一个类在选择选项值，如果id_tipo是1或2

这样的：

<select> 
    <option class="ruminanti">val 1</option> ->id_tipo=1 
    <option class="pippo">val 2</option>  ->id_tipo=2 
    <option class="ruminanti">val 3</option> ->id_tipo=1 
    </select> 

能够??

感谢对拉马赞Apaydın我添加此

$builder->add('idTipologiaEsame', EntityType::class, array(
      'placeholder' => 'tipologia esame', 
        'label' => false, 
        'mapped' => false, 
      'required' => false, 
        'class' => 'AppBundle:Nome_esame', 
        'choice_label' => 'nome', 
        'group_by' => 'idCategoriaEsame.tipo', 
      'choice_attr' => function($val, $key, $index) { 
     // adds a class like attending_yes, attending_no, etc 
      if($index){ ----> i want id_tipo =1 
      return ['class' => '.ruminati';}else{ 
       return ['class' => '.suini'; 

      } 
    }, 

，但我想补充条件id_tipo = 1

Answer 1

的EntityType是ChoiceType元素。 Symfony文档中提供了一个示例。

https://symfony.com/doc/current/reference/forms/types/choice.html#choice-attr