php - Symfony 2.5 addViolationAt 弃用，使用 buildViolation()

Question

我一直在关注 cookbook关于如何创建类约束验证器，现在我正准备在 validate() 函数中添加违规。

但是我的 IDE 通知我函数 addViolation() 和 addViolationAt() 已被弃用。

有人可以为我指明如何使用 Context\ExecutionContextInterface::buildViolation() 的正确方向吗？函数代替？

$this->context 是 Symfony\Component\Validator\ExecutionContext 的实例

class ProtocolClassValidator extends ConstraintValidator
{
    public function validate($protocol, Constraint $constraint)
    {
        if ($protocol->getFoo() != $protocol->getBar()) {
            $this->context->addViolationAt(
                'foo',
                $constraint->message,
                array(),
                null
            );
        }
    }
}

当将调用 $this->context->addViolationAt() 更改为简单的 $this->context->buildViolation() 时，我得到以下异常:

UndefinedMethodException: Attempted to call method "buildViolation" on class "Symfony\Component\Validator\ExecutionContext" in stripped path line 23. Did you mean to call: "addViolation"?

第23行代码如下:

    $builder = $this->context->buildViolation($constraint->message)
    ->atPath('formField')
    ->addViolation();

Answer 1

addViolation 和 addViolationAt 已从 2.5 中弃用，但在 3.0 之前不会被删除，因此它们仍然可以使用一段时间。

然而...取自UPGRADE FROM 2.x to 3.0日志...

addViolationAt() 方法已被删除。您应该改用 buildViolation():

之前:

$context->addViolationAt('property', 'The value {{ value }} is invalid.', array(
    '{{ value }}' => $invalidValue,
));

之后:

$context->buildViolation('The value {{ value }} is invalid.')
    ->atPath('property')
    ->setParameter('{{ value }}', $invalidValue)
    ->addViolation();
));

更多内容来自 Context/ExecutionContextInterface ...

/**
 * Returns a builder for adding a violation with extended information.
 *
 * Call {@link ConstraintViolationBuilderInterface::addViolation()} to
 * add the violation when you're done with the configuration:
 *
 *     $context->buildViolation('Please enter a number between %min% and %max.')
 *         ->setParameter('%min%', 3)
 *         ->setParameter('%max%', 10)
 *         ->setTranslationDomain('number_validation')
 *         ->addViolation();
 *
 * @param string $message    The error message
 * @param array  $parameters The parameters substituted in the error message
 *
 * @return ConstraintViolationBuilderInterface The violation builder
 */
public function buildViolation($message, array $parameters = array());