Upcoming Official Symfony Conferences
  1. Home
  2. Documentation
  3. Reference
  4. Constraints
  5. Min
WARNING: You are browsing the documentation for Symfony 2.0 which is not maintained anymore. Consider upgrading your projects to Symfony 4.1.

Min

2.0 version
Unmaintained
2.1 2.2

Min

Validates that a given number is greater than some minimum number.

Applies to property or method
Options
Class Min
Validator MinValidator

Basic Usage

To verify that the "age" field of a class is "18" or greater, you might add the following:

  • YAML
    1
2
3
4
5
    # src/Acme/EventBundle/Resources/config/validation.yml
Acme\EventBundle\Entity\Participant:
    properties:
        age:
            - Min: { limit: 18, message: You must be 18 or older to enter. }
  • Annotations
     1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
    // src/Acme/EventBundle/Entity/Participant.php
namespace Acme\EventBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Participant
{
    /**
     * @Assert\Min(limit = "18", message = "You must be 18 or older to enter.")
     */
     protected $age;
}
  • XML
    1
2
3
4
5
6
7
8
9
    <!-- src/Acme/EventBundle/Resources/config/validation.yml -->
<class name="Acme\EventBundle\Entity\Participant">
    <property name="age">
        <constraint name="Min">
            <option name="limit">18</option>
            <option name="message">You must be 18 or older to enter.</option>
        </constraint>
    </property>
</class>
  • PHP
     1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
    // src/Acme/EventBundle/Entity/Participant.php
namespace Acme\EventBundle\Entity\Participant;

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

class Participant
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('age', new Assert\Min(array(
            'limit'   => '18',
            'message' => 'You must be 18 or older to enter.',
        )));
    }
}

Options

limit

type: integer [default option]

This required option is the "min" value. Validation will fail if the given value is less than this min value.

message

type: string default: This value should be {{ limit }} or more

The message that will be shown if the underlying value is less than the limit option.

invalidMessage

type: string default: This value should be a valid number

The message that will be shown if the underlying value is not a number (per the is_numeric PHP function).

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