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发布于 2015-08-27 16:37:56 | 118 次阅读 | 评论: 0 | 来源: 网络整理

When applied to an array (or Traversable object), this constraint allows you to apply a collection of constraints to each element of the array.

Applies to property or method
Options
Class All
Validator AllValidator

Basic Usage

Suppose that you have an array of strings, and you want to validate each entry in that array:

  • YAML
    # src/Acme/UserBundle/Resources/config/validation.yml
    AcmeUserBundleEntityUser:
        properties:
            favoriteColors:
                - All:
                    - NotBlank:  ~
                    - Length:
                        min: 5
    
  • Annotations
    // src/Acme/UserBundle/Entity/User.php
    namespace AcmeUserBundleEntity;
    
    use SymfonyComponentValidatorConstraints as Assert;
    
    class User
    {
        /**
         * @AssertAll({
         *     @AssertNotBlank,
         *     @AssertLength(min = 5)
         * })
         */
         protected $favoriteColors = array();
    }
    
  • XML
    <!-- src/Acme/UserBundle/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="AcmeUserBundleEntityUser">
            <property name="favoriteColors">
                <constraint name="All">
                    <option name="constraints">
                        <constraint name="NotBlank" />
                        <constraint name="Length">
                            <option name="min">5</option>
                        </constraint>
                    </option>
                </constraint>
            </property>
        </class>
    </constraint-mapping>
    
  • PHP
    // src/Acme/UserBundle/Entity/User.php
    namespace AcmeUserBundleEntity;
    
    use SymfonyComponentValidatorMappingClassMetadata;
    use SymfonyComponentValidatorConstraints as Assert;
    
    class User
    {
        public static function loadValidatorMetadata(ClassMetadata $metadata)
        {
            $metadata->addPropertyConstraint('favoriteColors', new AssertAll(array(
                'constraints' => array(
                    new AssertNotBlank(),
                    new AssertLength(array('min' => 5)),
                ),
            )));
        }
    }
    

Now, each entry in the favoriteColors array will be validated to not be blank and to be at least 5 characters long.

Options

constraints

type: array [default option]

This required option is the array of validation constraints that you want to apply to each element of the underlying array.

payload

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.

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