Symfony2 验证器约束大于其他属性 [英] Symfony2 Validator Constraint GreaterThan on other property

问题描述

我的验证在 yaml 文件中定义，如下所示；

My validations are defined in a yaml file like so;

# src/My/Bundle/Resources/config/validation.yml
My\Bundle\Model\Foo:
    properties:
        id:
            - NotBlank: 
                groups: [add]
        min_time:
            - Range:
                min: 0
                max: 99
                minMessage: "Min time must be greater than {{ limit }}"
                maxMessage: "Min time must be less than {{ limit }}"
                groups: [add]
        max_time:
            - GreaterThan:
                value: min_time
                groups: [add]

如何使用验证器约束 GreaterThan 来检查另一个属性?
例如确保 max_time 大于 min_time?

How do I use the validator constraint GreaterThan to check against another property?
E.g make sure max_time is greater than min_time?

我知道我可以创建自定义约束验证器，但您肯定可以使用 GreaterThan 约束来实现.
希望我在这里遗漏了一些非常简单的东西

I know I can create a custom constraint validator, but surely you can do it using the GreaterThan constraint.
Hopefully I am missing something really simple here

推荐答案

我建议你看看 自定义验证器，尤其是 Class约束验证器.

I suggest you to look at Custom validator, especially Class Constraint Validator.

我不会复制粘贴整个代码，只会复制粘贴您需要更改的部分.

I won't copy paste the whole code, just the parts which you will have to change.

定义验证器，min_time 和 max_time 是您要检查的 2 个字段.

Define the validator, min_time and max_time are the 2 fields you want to check.

<?php

namespace My\Bundle\Validator\Constraints;

use Symfony\Component\Validator\Constraint;

/**
 * @Annotation
 */
class CheckTime extends Constraint
{
    public $message = 'Max time must be greater than min time';

    public function validatedBy()
    {
            return 'CheckTimeValidator';
    }

    public function getTargets()
    {
            return self::CLASS_CONSTRAINT;
    }
}

src/My/Bundle/Validator/Constraints/CheckTimeValidator.php

定义验证器:

<?php

namespace My\Bundle\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

class CheckTimeValidator extends ConstraintValidator
{
    public function validate($foo, Constraint $constraint)
    {
            if ($foo->getMinTime() > $foo->getMaxTime()) {
                $this->context->addViolationAt('max_time', $constraint->message, array(), null);
            }
    }
}

src/My/Bundle/Resources/config/validation.yml

使用验证器:

My\Bundle\Entity\Foo:
    constraints:
        - My\Bundle\Validator\Constraints\CheckTime: ~

这篇关于Symfony2 验证器约束大于其他属性的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！