Issn¶

2.3 新版功能: The Issn constraint was introduced in Symfony 2.3.

Validates that a value is a valid International Standard Serial Number (ISSN).

Applies to	property or method
Options	message caseSensitive requireHyphen
Class	`Issn`
Validator	`IssnValidator`

Basic Usage¶

YAML

# src/Acme/JournalBundle/Resources/config/validation.yml
Acme\JournalBundle\Entity\Journal:
    properties:
        issn:
            - Issn: ~

Annotations

// src/Acme/JournalBundle/Entity/Journal.php
namespace Acme\JournalBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Journal
{
    /**
     * @Assert\Issn
     */
     protected $issn;
}

XML

<!-- src/Acme/JournalBundle/Resources/config/validation.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">

    <class name="Acme\JournalBundle\Entity\Journal">
        <property name="issn">
            <constraint name="Issn" />
        </property>
    </class>
</constraint-mapping>

PHP

// src/Acme/JournalBundle/Entity/Journal.php
namespace Acme\JournalBundle\Entity;

use Symfony\Component\Validator\Mapping\ClassMetadata;
use Symfony\Component\Validator\Constraints as Assert;

class Journal
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('issn', new Assert\Issn());
    }
}

Options¶

message¶

type: String default: This value is not a valid ISSN.

The message shown if the given value is not a valid ISSN.

caseSensitive¶

type: Boolean default: false

The validator will allow ISSN values to end with a lower case ‘x’ by default. When switching this to true, the validator requires an upper case ‘X’.

requireHyphen¶

type: Boolean default: false

The validator will allow non hyphenated ISSN values by default. When switching this to true, the validator requires a hyphenated ISSN value.