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LessThanOrEqual

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LessThanOrEqual
- Basic Usage
- Comparing Dates
- Options
  - value
  - message
  - payload

LessThanOrEqual¶

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

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

Applies to	property or method
Options	value message payload
Class	`Symfony\Component\Validator\Constraints\LessThanOrEqual`
Validator	`Symfony\Component\Validator\Constraints\LessThanOrEqualValidator`

Basic Usage¶

The following constraints ensure that:

the number of siblings of a Person is less than or equal to 5
the age is less than or equal to 80

Annotations

// src/AppBundle/Entity/Person.php
namespace AppBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Person
{
    /**
     * @Assert\LessThanOrEqual(5)
     */
    protected $siblings;

    /**
     * @Assert\LessThanOrEqual(
     *     value = 80
     * )
     */
    protected $age;
}

YAML

# src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\Person:
    properties:
        siblings:
            - LessThanOrEqual: 5
        age:
            - LessThanOrEqual:
                value: 80

XML

<!-- src/AppBundle/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="AppBundle\Entity\Person">
        <property name="siblings">
            <constraint name="LessThanOrEqual">
                <value>5</value>
            </constraint>
        </property>
        <property name="age">
            <constraint name="LessThanOrEqual">
                <option name="value">80</option>
            </constraint>
        </property>
    </class>
</constraint-mapping>

PHP

// src/AppBundle/Entity/Person.php
namespace AppBundle\Entity;

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

class Person
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('siblings', new Assert\LessThanOrEqual(5));

        $metadata->addPropertyConstraint('age', new Assert\LessThanOrEqual(array(
            'value' => 80,
        )));
    }
}

Comparing Dates¶

New in version 2.6: The feature to compare dates was introduced in Symfony 2.6.

This constraint can be used to compare DateTime objects against any date string accepted by the DateTime constructor. For example, you could check that a date must be today or in the past like this:

Annotations

// src/AppBundle/Entity/Person.php
namespace AppBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Person
{
    /**
     * @Assert\LessThanOrEqual("today")
     */
    protected $age;
}

YAML

# src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\Person:
    properties:
        age:
            - LessThanOrEqual: today

XML

<!-- src/AppBundle/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="AppBundle\Entity\Person">
        <property name="age">
            <constraint name="LessThanOrEqual">today</constraint>
        </property>
    </class>
</constraint-mapping>

PHP

// src/AppBundle/Entity/Person.php
namespace AppBundle\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\LessThanOrEqual('today'));
    }
}

Be aware that PHP will use the server’s configured timezone to interpret these dates. If you want to fix the timezone, append it to the date string:

Annotations

// src/AppBundle/Entity/Person.php
namespace AppBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Person
{
    /**
     * @Assert\LessThanOrEqual("today UTC")
     */
    protected $age;
}

YAML

# src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\Person:
    properties:
        age:
            - LessThanOrEqual: today UTC

XML

<!-- src/AppBundle/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="AppBundle\Entity\Person">
        <property name="age">
            <constraint name="LessThanOrEqual">today UTC</constraint>
        </property>
    </class>
</constraint-mapping>

PHP

// src/AppBundle/Entity/Person.php
namespace AppBundle\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\LessThanOrEqual('today UTC'));
    }
}

The DateTime class also accepts relative dates or times. For example, you can check that a person must be at least 18 years old like this:

Annotations

// src/AppBundle/Entity/Person.php
namespace AppBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Person
{
    /**
     * @Assert\LessThanOrEqual("-18 years")
     */
    protected $age;
}

YAML

# src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\Person:
    properties:
        age:
            - LessThanOrEqual: -18 years

XML

<!-- src/AppBundle/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="AppBundle\Entity\Person">
        <property name="age">
            <constraint name="LessThanOrEqual">-18 years</constraint>
        </property>
    </class>
</constraint-mapping>

PHP

// src/AppBundle/Entity/Person.php
namespace AppBundle\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\LessThanOrEqual('-18 years'));
    }
}

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 or equal to {{ compared_value }}.

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

payload¶

type: mixed default: null

New in version 2.6: The payload option was introduced in Symfony 2.6.

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.

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