发布于 2015-08-27 16:50:31 | 108 次阅读 | 评论: 0 | 来源: 网络整理
2.3 新版功能: 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 |
If you want to ensure that the age of a Person class is less than
80, you could do the following:
# src/Acme/SocialBundle/Resources/config/validation.yml
AcmeSocialBundleEntityPerson:
properties:
age:
- LessThan:
value: 80
// src/Acme/SocialBundle/Entity/Person.php
namespace AcmeSocialBundleEntity;
use SymfonyComponentValidatorConstraints as Assert;
class Person
{
/**
* @AssertLessThan(
* value = 80
* )
*/
protected $age;
}
<!-- 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="AcmeSocialBundleEntityPerson">
<property name="age">
<constraint name="LessThan">
<option name="value">80</option>
</constraint>
</property>
</class>
</constraint-mapping>
// src/Acme/SocialBundle/Entity/Person.php
namespace AcmeSocialBundleEntity;
use SymfonyComponentValidatorMappingClassMetadata;
use SymfonyComponentValidatorConstraints as Assert;
class Person
{
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('age', new AssertLessThan(array(
'value' => 80,
)));
}
}
type: mixed [default option]
This option is required. It defines the value to compare to. It can be a string, number or object.
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.
type: mixed default: null
2.6 新版功能: 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.
For example, you may want to used several error levels to present failed constraint differently in the front-end depending on the severity of the error.