Symfony 2.5 addViolation不推荐使用,使用buildViolation()

Question

我一直在关注如何创建类约束验证器的烹饪书,现在我正处于我要在validate()函数中添加违规的程度.

但是我的IDE通知我函数addViolation()并且addViolationAt()已被弃用.

有人能指出我如何使用该Context\ExecutionContextInterface::buildViolation()功能的正确方向吗？

$this->context 是一个实例 Symfony\Component\Validator\ExecutionContext

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

将调用更改$this->context->addViolationAt()为简单时$this->context->buildViolation(),我得到以下异常:

UndefinedMethodException:尝试在剥离的路径 行23中的类"Symfony\Component\Validator\ExecutionContext"上调用方法"buildViolation" .您是否要调用:"addViolation"？

第23行具有以下代码:

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

Answer 1

addViolation并且addViolationAt从2.5弃用,但在3.0之前不会被删除,因此它们仍然可以使用很长时间.

但是......取自UPGRADE FROM 2.x到3.0 log ...

The method `addViolationAt()` was removed. You should use `buildViolation()`
instead.

Before:

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

After:

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

稍微从Context/ExecutionContextInterface中获取 ...

/**
 * 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());