Valid

Version: 2.0
Edit this page

Warning: You are browsing the documentation for Symfony 2.0, which is no longer maintained.

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

Valid

This constraint is used to enable validation on objects that are embedded as properties on an object being validated. This allows you to validate an object and all sub-objects associated with it.

Applies to property or method
Options
Class Type

Basic Usage

In the following example, create two classes Author and Address that both have constraints on their properties. Furthermore, Author stores an Address instance in the $address property.

1
2
3
4
5
6
7
8
// src/Acme/HelloBundle/Entity/Address.php
namespace Amce\HelloBundle\Entity;

class Address
{
    protected $street;
    protected $zipCode;
}
1
2
3
4
5
6
7
8
9
// src/Acme/HelloBundle/Entity/Author.php
namespace Amce\HelloBundle\Entity;

class Author
{
    protected $firstName;
    protected $lastName;
    protected $address;
}
  • YAML
  • Annotations
  • XML
  • PHP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
# src/Acme/HelloBundle/Resources/config/validation.yml
Acme\HelloBundle\Entity\Address:
    properties:
        street:
            - NotBlank: ~
        zipCode:
            - NotBlank: ~
            - MaxLength: 5

Acme\HelloBundle\Entity\Author:
    properties:
        firstName:
            - NotBlank: ~
            - MinLength: 4
        lastName:
            - NotBlank: ~

With this mapping, it is possible to successfully validate an author with an invalid address. To prevent that, add the Valid constraint to the $address property.

  • YAML
  • Annotations
  • XML
  • PHP
1
2
3
4
5
# src/Acme/HelloBundle/Resources/config/validation.yml
Acme\HelloBundle\Author:
    properties:
        address:
            - Valid: ~

If you validate an author with an invalid address now, you can see that the validation of the Address fields failed.

AcmeHelloBundleAuthor.address.zipCode: This value is too long. It should have 5 characters or less

Options

traverse

type: boolean default: true

If this constraint is applied to a property that holds an array of objects, then each object in that array will be validated only if this option is set to true.

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