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LessThan

LessThan

New in version 2.3: The LessThan constraint was introduced in Symfony 2.3.

Validates that a value is less than another value, defined in the options. To force that a value is less than or equal to another value, see LessThanOrEqual. To force a value is greater than another value, see GreaterThan.

Applies to property or method
Options
Class Symfony\Component\Validator\Constraints\LessThan
Validator Symfony\Component\Validator\Constraints\LessThanValidator

Basic Usage

If you want to ensure that the age of a Person class is less than 80, you could do the following:

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    # src/Acme/SocialBundle/Resources/config/validation.yml
    Acme\SocialBundle\Entity\Person:
        properties:
            age:
                - LessThan:
                    value: 80
    
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    // src/Acme/SocialBundle/Entity/Person.php
    namespace Acme\SocialBundle\Entity;
    
    use Symfony\Component\Validator\Constraints as Assert;
    
    class Person
    {
        /**
         * @Assert\LessThan(
         *     value = 80
         * )
         */
        protected $age;
    }
    
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    <!-- src/Acme/SocialBundle/Resources/config/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="Acme\SocialBundle\Entity\Person">
            <property name="age">
                <constraint name="LessThan">
                    <option name="value">80</option>
                </constraint>
            </property>
        </class>
    </constraint-mapping>
    
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    // src/Acme/SocialBundle/Entity/Person.php
    namespace Acme\SocialBundle\Entity;
    
    use Symfony\Component\Validator\Mapping\ClassMetadata;
    use Symfony\Component\Validator\Constraints as Assert;
    
    class Person
    {
        public static function loadValidatorMetadata(ClassMetadata $metadata)
        {
            $metadata->addPropertyConstraint('age', new Assert\LessThan(array(
                'value' => 80,
            )));
        }
    }
    

Options

value

type: mixed [default option]

This option is required. It defines the value to compare to. It can be a string, number or object.

message

type: string default: This value should be less than {{ compared_value }}.

This is the message that will be shown if the value is not less than the comparison value.

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