SymfonyWorld Online 2021 Summer Edition
June 17 – 18, 2021
SymfonyWorld Online 2021 Winter Edition
December 9 – 10, 2021
  1. Home
  2. Documentation
  3. Reference
  4. Constraints
  5. Isbn

Warning: You are browsing the documentation for Symfony 2.3, which is no longer maintained.

Read the updated version of this page for Symfony 5.3 (the current stable version).

Isbn

2.3 version
Maintained
4.4 5.3 current 5.4 dev 6.0
Unmaintained
2.3 2.4 2.5 2.6 2.7 2.8 3.0 3.1 3.2 3.3 3.4 4.0 4.1 4.2 4.3 5.0 5.1 5.2

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
     1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
    // 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
    1
2
3
4
5
6
7
8
    # 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
     1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
    <!-- 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
     1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
    // 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.