AtLeastOneOf

This constraint checks that the value satisfies at least one of the given constraints. The validation stops as soon as one constraint is satisfied.

New in version 5.1: The AtLeastOneOf constraint was introduced in Symfony 5.1.

Applies to property or method
Options
Class AtLeastOneOf
Validator AtLeastOneOfValidator

Basic Usage

The following constraints ensure that:

  • the password of a Student either contains # or is at least 10 characters long;
  • the grades of a Student is an array which contains at least 3 elements or that each element is greater than or equal to 5.
  • Annotations
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    // src/Entity/Student.php
namespace App\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Student
{
    /**
     * @Assert\AtLeastOneOf({
     *     @Assert\Regex("/#/"),
     *     @Assert\Length(min=10)
     * })
     */
    protected $password;

    /**
     * @Assert\AtLeastOneOf({
     *     @Assert\Count(min=3),
     *     @Assert\All(
     *         @Assert\GreaterThanOrEqual(5)
     *     )
     * })
     */
    protected $grades;
}
  • YAML
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    # config/validator/validation.yaml
App\Entity\Student:
    properties:
        password:
            - AtLeastOneOf:
                - Regex: '/#/'
                - Length:
                    min: 10
        grades:
            - AtLeastOneOf:
                - Count:
                    min: 3
                - All:
                    - GreaterThanOrEqual: 5
  • XML
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    <!-- 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 https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">

    <class name="App\Entity\Student">
        <property name="password">
            <constraint name="AtLeastOneOf">
                <option name="constraints">
                    <constraint name="Regex">
                        <option name="pattern">/#/</option>
                    </constraint>
                    <constraint name="Length">
                        <option name="min">10</option>
                    </constraint>
                </option>
            </constraint>
        </property>
        <property name="grades">
            <constraint name="AtLeastOneOf">
                <option name="constraints">
                    <constraint name="Count">
                        <option name="min">3</option>
                    </constraint>
                    <constraint name="All">
                        <option name="constraints">
                            <constraint name="GreaterThanOrEqual">
                                5
                            </constraint>
                        </option>
                    </constraint>
                </option>
            </constraint>
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/Entity/Student.php
namespace App\Entity;

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

class Student
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('password', new Assert\AtLeastOneOf([
            'constraints' => [
                new Assert\Regex(['pattern' => '/#/']),
                new Assert\Length(['min' => 10]),
            ],
        ]));

        $metadata->addPropertyConstraint('grades', new Assert\AtLeastOneOf([
            'constraints' => [
                new Assert\Count(['min' => 3]),
                new Assert\All([
                    'constraints' => [
                        new Assert\GreaterThanOrEqual(['value' => 5]),
                    ],
                ]),
            ],
        ]));
    }
}

Options

constraints

type: array [default option]

This required option is the array of validation constraints from which at least one of has to be satisfied in order for the validation to succeed.

includeInternalMessages

type: bool default: true

If set to true, the message that is shown if the validation fails, will include the list of messages for the internal constraints. See option message for an example.

message

type: string default: This value should satisfy at least one of the following constraints:

This is the intro of the message that will be shown if the validation fails. By default, it will be followed by the list of messages for the internal constraints (configurable by includeInternalMessages option) . For example, if the above grades property fails to validate, the message will be This value should satisfy at least one of the following constraints: [1] This collection should contain 3 elements or more. [2] Each element of this collection should satisfy its own set of constraints.

messageCollection

type: string default: Each element of this collection should satisfy its own set of constraints.

This is the message that will be shown if the validation fails and the internal constraint is either All or Collection. See option message for an example.

groups

type: array | string

It defines the validation group or groups this constraint belongs to. Read more about validation groups.

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.