Symfony 4 was released on November 30th.
Update now to the best Symfony ever!

You are browsing the Symfony 4 documentation, which changes significantly from Symfony 3.x. If your app doesn't use Symfony 4 yet, browse the Symfony 3.4 documentation.

Language

Language

Validates that a value is a valid language Unicode language identifier (e.g. fr or zh-Hant).

Applies to property or method
Options
Class Language
Validator LanguageValidator

Basic Usage

  • Annotations
     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    // src/Entity/User.php
    namespace App\Entity;
    
    use Symfony\Component\Validator\Constraints as Assert;
    
    class User
    {
        /**
         * @Assert\Language()
         */
         protected $preferredLanguage;
    }
    
  • YAML
    1
    2
    3
    4
    5
    # config/validator/validation.yaml
    App\Entity\User:
        properties:
            preferredLanguage:
                - Language: ~
    
  • XML
     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    <!-- config/validator/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="App\Entity\User">
            <property name="preferredLanguage">
                <constraint name="Language" />
            </property>
        </class>
    </constraint-mapping>
    
  • PHP
     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    13
    // src/Entity/User.php
    namespace App\Entity;
    
    use Symfony\Component\Validator\Mapping\ClassMetadata;
    use Symfony\Component\Validator\Constraints as Assert;
    
    class User
    {
        public static function loadValidatorMetadata(ClassMetadata $metadata)
        {
            $metadata->addPropertyConstraint('preferredLanguage', new Assert\Language());
        }
    }
    

Options

message

type: string default: This value is not a valid language.

This message is shown if the string is not a valid language code.

payload

type: mixed default: null

This option can be used to attach arbitrary domain-specific data to a constraint. The configured payload is not used by the Validator component, but its processing is completely up to you.

For example, you may want to use several error levels to present failed constraints differently in the front-end depending on the severity of the error.

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