LessThan
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LessThan
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 | LessThan |
Validator | 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.