Min

Caution

The Min constraint is deprecated since version 2.1 and will be removed in Symfony 2.3. Use Range with the min option instead.

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

Applies to	property or method
Options	limit message invalidMessage
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
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PHP

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        # 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. }
    

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        // 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;
}
    

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        <!-- src/Acme/EventBundle/Resources/config/validation.yml -->
<?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="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>
</constraint-mapping>
    

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        // 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.