LessThanOrEqual
LessThanOrEqual
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 | |
Class | Symfony\Component\Validator\Constraints\LessThanOrEqual |
Validator | Symfony\Component\Validator\Constraints\LessThanOrEqualValidator |
Basic Usage
The following constraints ensure that:
- the number of
siblings
of aPerson
is less than or equal to5
the
age
is less than or equal to80
Annotations
// src/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
class Person
{
/**
* @Assert\LessThanOrEqual(5)
*/
protected $siblings;
/**
* @Assert\LessThanOrEqual(
* value = 80
* )
*/
protected $age;
}
YAML
# config/validator/validation.yaml
App\Entity\Person:
properties:
siblings:
- LessThanOrEqual: 5
age:
- LessThanOrEqual:
value: 80
XML
<!-- config/validator/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 https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">
<class name="App\Entity\Person">
<property name="siblings">
<constraint name="LessThanOrEqual">
5
</constraint>
</property>
<property name="age">
<constraint name="LessThanOrEqual">
<option name="value">80</option>
</constraint>
</property>
</class>
</constraint-mapping>
PHP
// src/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Mapping\ClassMetadata;
class Person
{
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('siblings', new Assert\LessThanOrEqual(5));
$metadata->addPropertyConstraint('age', new Assert\LessThanOrEqual([
'value' => 80,
]));
}
}
Comparing Dates
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/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
class Person
{
/**
* @Assert\LessThanOrEqual("today")
*/
protected $dateOfBirth;
}
YAML
# config/validator/validation.yaml
App\Entity\Person:
properties:
dateOfBirth:
- LessThanOrEqual: today
XML
<!-- config/validator/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 https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">
<class name="App\Entity\Person">
<property name="dateOfBirth">
<constraint name="LessThanOrEqual">today</constraint>
</property>
</class>
</constraint-mapping>
PHP
// src/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Mapping\ClassMetadata;
class Person
{
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('dateOfBirth', 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/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
class Person
{
/**
* @Assert\LessThanOrEqual("today UTC")
*/
protected $dateOfBirth;
}
YAML
# config/validator/validation.yaml
App\Entity\Person:
properties:
dateOfBirth:
- LessThanOrEqual: today UTC
XML
<!-- config/validator/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 https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">
<class name="App\Entity\Person">
<property name="dateOfBirth">
<constraint name="LessThanOrEqual">today UTC</constraint>
</property>
</class>
</constraint-mapping>
PHP
// src/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Mapping\ClassMetadata;
class Person
{
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('dateOfBirth', 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/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
class Person
{
/**
* @Assert\LessThanOrEqual("-18 years")
*/
protected $dateOfBirth;
}
YAML
# config/validator/validation.yaml
App\Entity\Person:
properties:
dateOfBirth:
- LessThanOrEqual: -18 years
XML
<!-- config/validator/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 https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">
<class name="App\Entity\Person">
<property name="dateOfBirth">
<constraint name="LessThanOrEqual">-18 years</constraint>
</property>
</class>
</constraint-mapping>
PHP
// src/Entity/Person.php
namespace App\Entity;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Mapping\ClassMetadata;
class Person
{
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('dateOfBirth', new Assert\LessThanOrEqual('-18 years'));
}
}
Options
groups
type: array
| string
It defines the validation group or groups this constraint belongs to. Read more about validation groups.
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.
You can use the following parameters in this message:
Parameter | Description |
---|---|
{{ compared_value }} | The upper limit |
{{ compared_value_type }} | The expected value type |
{{ value }} | The current (invalid) value |
payload
type: mixed
default: null
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.
propertyPath
type: string
It defines the object property whose value is used to make the comparison.
For example, if you want to compare the $endDate
property of some object with regard to the $startDate
property of the same object, use propertyPath="startDate"
in the comparison constraint of $endDate
.
Tip
When using this option, its value is available in error messages as the {{ compared_value_path }}
placeholder. Although it’s not intended to include it in the error messages displayed to end users, it’s useful when using APIs for doing any mapping logic on client-side.
New in version 4.4: The {{ compared_value_path }}
placeholder was introduced in Symfony 4.4.
value
type: mixed
[default option]
This option is required. It defines the value to compare to. It can be a string, number or object.
This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.