我有一个基于Sytrfony 2.3和Doctrine的项目，我有一个实体'UserEducation'的表单'EducationType'，它包含一个相关实体'EducationDegree'的选择框
$builder->add('educationDegree', 'entity', array('em'=>$this->em, 'class'=>'Hr\OnlineBundle\Entity\EducationDegree','required'=>true, 'empty_value' => '-- Please select --', 'attr'=>array('class'=>'full-width')));
请注意，将此作为独立形式使用时，它可以正常工作。
但是，当我将表单嵌入到另一种表单类型中时：
$builder->add('educations', 'collection', array(
'label' => false,
'required' => true,
'type' => new EducationType($this->fieldSettings, $this->em),
'allow_add' => true,
'allow_delete' => true,
'by_reference' => false
));
在Doctrine \ Common \ Persistence \ AbstractManagerRegistry中我遇到问题：
if (!isset($this->managers[$name])) {:
警告：isset中的非法偏移类型或C：\ wamp \ www \ hronline \ vendor \ doctrine \ common \ lib \ Doctrine \ Common \ Persistence \ AbstractManagerRegistry.php第187行
$ name变量将作为对象（Doctrine \ ORM \ EntityManager）。
即使我明确地传递了一个null，也会发生这种情况：
$builder->add('educationDegree', 'entity', array('em'=>null, 'class'=>'Hr\OnlineBundle\Entity\EducationDegree','required'=>true, 'empty_value' => '-- Please select --', 'attr'=>array('class'=>'full-width')));
或隐含地：
$builder->add('educationDegree');
因此，AbstractManagerRegistry中的这一行永远不会执行：
if (null === $name) {
$name = $this->defaultManager;
}
如果我们在getManager（）方法中有这样的东西：
if (!is_string($name)) {
$name = $this->defaultManager;
}
它会起作用。
$ name var应该是一个字符串，而不是接口（https://github.com/doctrine/common/blob/master/lib/Doctrine/Common/Persistence/ManagerRegistry.php）中定义的对象。
有没有办法通过传递参数或以不同的方式嵌入表单来解决这个问题？
堆栈追踪：
in C:\wamp\www\hronline\vendor\doctrine\common\lib\Doctrine\Common\Persistence\AbstractManagerRegistry.php at line 181 -
$name = $this->defaultManager;
}
if (!isset($this->managers[$name])) {
throw new \InvalidArgumentException(sprintf('Doctrine %s Manager named "%s" does not exist.', $this->name, $name));
}
at ErrorHandler ->handle ('2', 'Illegal offset type in isset or empty', 'C:\wamp\www\hronline\vendor\doctrine\common\lib\Doctrine\Common\Persistence\AbstractManagerRegistry.php', '181', array('name' => object(EntityManager)))
in C:\wamp\www\hronline\vendor\doctrine\common\lib\Doctrine\Common\Persistence\AbstractManagerRegistry.php at line 181 +
at AbstractManagerRegistry ->getManager (object(EntityManager))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Bridge\Doctrine\Form\Type\DoctrineType.php at line 141 +
at DoctrineType ->Symfony\Bridge\Doctrine\Form\Type\{closure} (object(Options), object(EntityManager))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\OptionsResolver\Options.php at line 507 +
at Options ->normalize ('em')
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\OptionsResolver\Options.php at line 236 +
at Options ->get ('em')
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\OptionsResolver\Options.php at line 351 +
at Options ->offsetGet ('em')
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Bridge\Doctrine\Form\Type\DoctrineType.php at line 113 +
at DoctrineType ->Symfony\Bridge\Doctrine\Form\Type\{closure} (object(Options), null)
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\OptionsResolver\Options.php at line 467 +
at Options ->resolve ('choice_list')
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\OptionsResolver\Options.php at line 309 +
at Options ->all ()
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\OptionsResolver\OptionsResolver.php at line 231 +
at OptionsResolver ->resolve (array('em' => object(EntityManager), 'class' => 'Hr\OnlineBundle\Entity\EducationDegree', 'required' => true, 'empty_value' => '-- Please select --', 'attr' => array('class' => 'full-width')))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\ResolvedFormType.php at line 109 +
at ResolvedFormType ->createBuilder (object(FormFactory), 'educationDegree', array('em' => object(EntityManager), 'class' => 'Hr\OnlineBundle\Entity\EducationDegree', 'required' => true, 'empty_value' => '-- Please select --', 'attr' => array('class' => 'full-width')))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormFactory.php at line 87 +
at FormFactory ->createNamedBuilder ('educationDegree', 'entity', null, array('em' => object(EntityManager), 'class' => 'Hr\OnlineBundle\Entity\EducationDegree', 'required' => true, 'empty_value' => '-- Please select --', 'attr' => array('class' => 'full-width')))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 106 +
at FormBuilder ->create ('educationDegree', 'entity', array('em' => object(EntityManager), 'class' => 'Hr\OnlineBundle\Entity\EducationDegree', 'required' => true, 'empty_value' => '-- Please select --', 'attr' => array('class' => 'full-width')))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 257 +
at FormBuilder ->resolveChild ('educationDegree')
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 122 +
at FormBuilder ->get ('educationDegree')
in C:\wamp\www\hronline\src\Hr\OnlineBundle\Form\GenericType.php at line 43 +
at GenericType ->modifyRequiredOption (object(FormBuilder), 'educationDegree', false)
in C:\wamp\www\hronline\src\Hr\OnlineBundle\Form\GenericType.php at line 32 +
at GenericType ->adjustFields (object(FormBuilder))
in C:\wamp\www\hronline\src\Hr\OnlineBundle\Form\EducationType.php at line 45 +
at EducationType ->buildForm (object(FormBuilder), array('disabled' => false, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => 'Hr\OnlineBundle\Entity\UserEducation', 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_provider' => object(SessionCsrfProvider), 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'intention' => 'unknown', 'sonata_admin' => null, 'sonata_field_description' => null, 'label' => '__name__label__', 'block_name' => 'entry'))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\ResolvedFormType.php at line 158 +
at ResolvedFormType ->buildForm (object(FormBuilder), array('disabled' => false, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => 'Hr\OnlineBundle\Entity\UserEducation', 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_provider' => object(SessionCsrfProvider), 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'intention' => 'unknown', 'sonata_admin' => null, 'sonata_field_description' => null, 'label' => '__name__label__', 'block_name' => 'entry'))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\ResolvedFormType.php at line 117 +
at ResolvedFormType ->createBuilder (object(FormFactory), '__name__', array('label' => '__name__label__', 'block_name' => 'entry'))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormFactory.php at line 87 +
at FormFactory ->createNamedBuilder ('__name__', object(EducationType), null, array('label' => '__name__label__', 'block_name' => 'entry'))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 106 +
at FormBuilder ->create ('__name__', object(EducationType), array('label' => '__name__label__', 'block_name' => 'entry'))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\Extension\Core\Type\CollectionType.php at line 32 +
at CollectionType ->buildForm (object(FormBuilder), array('block_name' => null, 'disabled' => false, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_provider' => object(SessionCsrfProvider), 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'intention' => 'unknown', 'sonata_admin' => null, 'sonata_field_description' => null, 'prototype' => true, 'prototype_name' => '__name__', 'options' => array('block_name' => 'entry'), 'label' => false, 'required' => true, 'type' => object(EducationType), 'allow_add' => true, 'allow_delete' => true, 'by_reference' => false))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\ResolvedFormType.php at line 158 +
at ResolvedFormType ->buildForm (object(FormBuilder), array('block_name' => null, 'disabled' => false, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_provider' => object(SessionCsrfProvider), 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'intention' => 'unknown', 'sonata_admin' => null, 'sonata_field_description' => null, 'prototype' => true, 'prototype_name' => '__name__', 'options' => array('block_name' => 'entry'), 'label' => false, 'required' => true, 'type' => object(EducationType), 'allow_add' => true, 'allow_delete' => true, 'by_reference' => false))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\ResolvedFormType.php at line 117 +
at ResolvedFormType ->createBuilder (object(FormFactory), 'educations', array('label' => false, 'required' => true, 'type' => object(EducationType), 'allow_add' => true, 'allow_delete' => true, 'by_reference' => false))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormFactory.php at line 87 +
at FormFactory ->createNamedBuilder ('educations', 'collection', null, array('label' => false, 'required' => true, 'type' => object(EducationType), 'allow_add' => true, 'allow_delete' => true, 'by_reference' => false))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 106 +
at FormBuilder ->create ('educations', 'collection', array('label' => false, 'required' => true, 'type' => object(EducationType), 'allow_add' => true, 'allow_delete' => true, 'by_reference' => false))
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 270 +
at FormBuilder ->resolveChildren ()
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormBuilder.php at line 218 +
at FormBuilder ->getForm ()
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Component\Form\FormFactory.php at line 39 +
at FormFactory ->create (object(UserEditType), object(User), array())
in C:\wamp\www\hronline\vendor\symfony\symfony\src\Symfony\Bundle\FrameworkBundle\Controller\Controller.php at line 163 +
at Controller ->createForm (object(UserEditType), object(User))
in C:\wamp\www\hronline\src\Hr\OnlineBundle\Controller\UserController.php at line 268 +
at UserController ->editAction ()
at call_user_func_array (array(object(UserController), 'editAction'), array())
in C:\wamp\www\hronline\app\bootstrap.php.cache at line 2844 +
at HttpKernel ->handleRaw (object(Request), '1')
in C:\wamp\www\hronline\app\bootstrap.php.cache at line 2818 +
at HttpKernel ->handle (object(Request), '1', true)
in C:\wamp\www\hronline\app\bootstrap.php.cache at line 2947 +
at ContainerAwareHttpKernel ->handle (object(Request), '1', true)
in C:\wamp\www\hronline\app\bootstrap.php.cache at line 2249 +
at Kernel ->handle (object(Request))
in C:\wamp\www\hronline\web\app_dev.php at line 28 +
答案 0 :(得分：0)
我得到了同样的错误，但在另一种情况下。我创建了一个service并将其注入其他服务，但我没有注意到第二个服务有定义factory-service="doctrine"：
<service id="xxx.my_repository" class="Xxx\Repository" factory-service="doctrine" factory-method="getRepository">
<argument type="service">xxx.my_service</argument>
</service>
所以它被视为ObjectManager。所以我必须把它改成
<service id="xxx.my_repository" class="Xxx\Repository" factory-service="doctrine" factory-method="getRepository">
<call method="setMyService">
<argument type="service">xxx.my_service</argument></call>
</service>
问题已得到解决。我希望我能帮助有共同问题的人。