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  5. Isbn
WARNING: You are browsing the documentation for Symfony 2.3 which is not maintained anymore. Consider upgrading your projects to Symfony 5.1.

Isbn

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Isbn

New in version 2.3: The Isbn constraint was introduced in Symfony 2.3.

This constraint validates that an International Standard Book Number (ISBN) is either a valid ISBN-10, a valid ISBN-13 or both.

Applies to property or method
Options
Class Symfony\Component\Validator\Constraints\Isbn
Validator Symfony\Component\Validator\Constraints\IsbnValidator

Basic Usage

To use the Isbn validator, simply apply it to a property or method on an object that will contain a ISBN number.

  • Annotations
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    // src/AppBundle/Entity/Book.php
namespace AppBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Book
{
    /**
     * @Assert\Isbn(
     *     isbn10 = true,
     *     isbn13 = true,
     *     bothIsbnMessage = "This value is neither a valid ISBN-10 nor a valid ISBN-13."
     * )
     */
    protected $isbn;
}
  • YAML
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    # src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\Book:
    properties:
        isbn:
            - Isbn:
                isbn10: true
                isbn13: true
                bothIsbnMessage: This value is neither a valid ISBN-10 nor a valid ISBN-13.
  • XML
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    <!-- src/AppBundle/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="AppBundle\Entity\Book">
        <property name="isbn">
            <constraint name="Isbn">
                <option name="isbn10">true</option>
                <option name="isbn13">true</option>
                <option name="bothIsbnMessage">
                    This value is neither a valid ISBN-10 nor a valid ISBN-13.
                </option>
            </constraint>
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/AppBundle/Entity/Book.php
namespace AppBundle\Entity;

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

class Book
{
    protected $isbn;

    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('isbn', new Assert\Isbn(array(
            'isbn10'          => true,
            'isbn13'          => true,
            'bothIsbnMessage' => 'This value is neither a valid ISBN-10 nor a valid ISBN-13.'
        )));
    }
}

Available Options

isbn10

type: boolean default: false

If this required option is set to true the constraint will check if the code is a valid ISBN-10 code.

isbn13

type: boolean default: false

If this required option is set to true the constraint will check if the code is a valid ISBN-13 code.

isbn10Message

type: string default: This value is not a valid ISBN-10.

The message that will be shown if the isbn10 option is true and the given value does not pass the ISBN-10 check.

isbn13Message

type: string default: This value is not a valid ISBN-13.

The message that will be shown if the isbn13 option is true and the given value does not pass the ISBN-13 check.

bothIsbnMessage

type: string default: This value is neither a valid ISBN-10 nor a valid ISBN-13.

The message that will be shown if both the isbn10 and isbn13 options are true and the given value does not pass the ISBN-13 nor the ISBN-13 check.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.