DivisibleBy

Validates that a value is divisible by another value, defined in the options.

参考

If you need to validate that the number of elements in a collection is divisible by a certain number, use the Count constraint with the divisibleBy option.

Applies to property or method
Options
Class DivisibleBy
Validator DivisibleByValidator

Basic Usage

The following constraints ensure that:

  • the weight of the Item is provided in increments of 0.25
  • the quantity of the Item must be divisible by 5
  • Annotations
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    // src/Entity/Item.php
namespace App\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Item
{

    /**
     * @Assert\DivisibleBy(0.25)
     */
    protected $weight;

    /**
     * @Assert\DivisibleBy(
     *     value = 5
     * )
     */
    protected $quantity;
}
  • YAML
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    # config/validator/validation.yaml
App\Entity\Item:
    properties:
        weight:
            - DivisibleBy: 0.25
        quantity:
            - DivisibleBy:
                value: 5
  • XML
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    <!-- 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\Item">
        <property name="weight">
            <constraint name="DivisibleBy">
                <value>0.25</value>
            </constraint>
        </property>
        <property name="quantity">
            <constraint name="DivisibleBy">
                <option name="value">5</option>
            </constraint>
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/Entity/Item.php
namespace App\Entity;

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

class Item
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('weight', new Assert\DivisibleBy(0.25));

        $metadata->addPropertyConstraint('quantity', new Assert\DivisibleBy([
            'value' => 5,
        ]));
    }
}

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 a multiple of {{ compared_value }}.

This is the message that will be shown if the value is not divisible by the comparison 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.

ちなみに

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.

value

type: mixed [default option]

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