如何为NotEqualTo约束定义一组值？

Question

使用NotEqualTo验证器约束时,我想定义多个值.

这是它用于一个值的方式:

# src/SocialBundle/Resources/config/validation.yml
Acme\SocialBundle\Entity\Person:
    properties:
        age:
            - NotEqualTo:
                value: 15

但是如何定义一组(数组)值？我试过了

            - NotEqualTo:
                value: 15
                value: 16
                value: 17

和

            - NotEqualTo:
                value: [15, 16, 17]

但这两种方法都不起作用.

Answer 1

我相信你可以拥有多个约束.

Acme\SocialBundle\Entity\Person:
    properties:
        age:
            - NotEqualTo: { value: 15 }
            - NotEqualTo: { value: 16 }
            - NotEqualTo: { value: 17 }

或者提供回调验证器

Acme\SocialBundle\Entity\Person:
    properties:
        age:
            - Callback: [validateNotOfAge]

.

<?php

namespace Acme\SocialBundle\Entity;

use Symfony\Component\Validator\ExecutionContextInterface;

class Person
{
    public function validateNotOfAge(ExecutionContextInterface $context)
    {
        if (in_array($this->age, array(
            15, 16, 17
        ))) {
            $context->addViolationAt(
                'age',
                'This age is not permitted',
                array(),
                null
            );
        }
    }
}

或者,如果您有Symfony 2.4,则可以使用Expression使用ExpressionLanguage组件的新验证器.

Acme\SocialBundle\Entity\Person:
    properties:
        age:
            - Expression:
                expression: "this.getAge() not in [15, 16, 17]"