php - Symfony 表单错误 : "Expected argument of type "Doctrine\ORM\QueryBuilder", "Doctrine\ORM\Query"给出”

Question

我在 Controller 中有两个表单，第一个表单工作正常，但我的第二个表单无法按预期工作。

我的 Controller :

// Second Form
$formTwo = $this->get('form.factory')->createNamedBuilder('form2name', new CarType(), null, array())
        ->getForm();

if('POST' === $request->getMethod()) {

if ($request->request->has('form1name')) {
    // handle the first form  
}

if ($request->request->has('form2name')) {
    // handle the second form 
    // get the id value of the selected value. 
  }
}

我的车型:

public function buildForm(FormBuilderInterface $builder, array $options){

   $builder->add('makename','entity',array(
                    'class'=> 'MyTestBundle:Car\CarModel',
                    'query_builder'=>function(EntityRepository $er){
                        return $query = $er->createQueryBuilder('s')
                                    ->select('s.makename')
                                    ->distinct()
                                    ->orderBy('s.makename','ASC');
                }

   ));
  $builder->add('search','submit',array());
}

My Car Entity

Full Stack Trace

Error : "Expected argument of type "Doctrine\ORM\QueryBuilder", "Doctrine\ORM\Query" given"

Symfony 版本:2.7

Answer 1

在query_builder(用于构建表单)中，您必须返回一个QueryBuilder对象。目前，您返回一个 Query 对象。

只需删除getQuery()

 $builder->add('makename','entity',array(
                    'class'=> 'MyTestBundle:Car\CarModel',
                    'query_builder'=>function(EntityRepository $er){
                        return $er->createQueryBuilder('s')
                                    ->select('s.makename')
                                    ->distinct()
                                    //->getQuery(); remove this line
                }