Symfony的学说+ +注释验证表单无法工作

问题描述：

我使用学说的注释在我的实体定义来定义每个变量的行为，即：

I'm using doctrine annotations in my entities definition to define each variable behavior, i.e.:

@ORM\Column(type="string", length=50, nullable=false)

如果我提交表单离开该字段为空，它通过验证，但（Corse车队的）我收到一个错误有关INSERT语句的，因为他不能插入NULL值。
这怎么可能呢？

If I submit the form leaving the field empty, it pass the validation, but (of corse) I receive an error about the INSERT statement, because he cannot insert NULL value. How this could be possible?

答

这是因为交响乐不会根据教义注解自动验证你的表单输入。

This is because Symphony does not automatically validate your form input based on Doctrine annotations.

Symfony2中附带了一个验证组件，使这个任务简单，透明，虽然。该组件是基于 JSR303 Bean验证规范。

Symfony2 ships with a Validator component that makes this task easy and transparent though. This component is based on the JSR303 Bean Validation specification.

在 http://symfony.com/doc/current/阅读上的实现本书/ validation.html

下面是可能有助于您验证注释的例子：

Here is an example of Validator annotation that might assist you:

// Acme/TaskBundle/Entity/Example.php
use Symfony\Component\Validator\Constraints as Assert;

class Example
{
    /**
     * @Assert\NotBlank()
     * @Assert\MaxLength(50)
     * @ORM\Column(type="string", length=50, nullable=false)
     */
    public $parameter;
}

Symfony的学说+ +注释验证表单无法工作

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