Adding documentation for the CardScheme validation.

reference/constraints.rst

@@ -40,6 +40,7 @@ Validation Constraints Reference
    constraints/File
    constraints/Image
 
+   constraints/CardScheme
    constraints/Luhn
 
    constraints/Callback

reference/constraints/CardScheme.rst

@@ -0,0 +1,119 @@
+CardScheme
+==========
+
+.. versionadded:: 2.2
+    The CardScheme validation is new in Symfony 2.2.
+
+This constraint ensures that a credit card number is valid for a given credit card
+company. It can be used to validate the number before trying to initiate a payment 
+through a payment gateway.
+
++----------------+--------------------------------------------------------------------------+
+| Applies to     | :ref:`property or method<validation-property-target>`                    |
++----------------+--------------------------------------------------------------------------+
+| Options        | - `schemes`_                                                             |
+|                | - `message`_                                                             |
++----------------+--------------------------------------------------------------------------+
+| Class          | :class:`Symfony\\Component\\Validator\\Constraints\\CardScheme`          |
++----------------+--------------------------------------------------------------------------+
+| Validator      | :class:`Symfony\\Component\\Validator\\Constraints\\CardSchemeValidator` |
++----------------+--------------------------------------------------------------------------+
+
+Basic Usage
+-----------
+
+To use the CardScheme validator, simply apply it to a property or method on an 
+object that will contain a credit card number.
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        # src/Acme/SubscriptionBundle/Resources/config/validation.yml
+        Acme\SubscriptionBundle\Entity\Transaction:
+            properties:
+                cardNumber:
+                    - CardScheme:
+                        schemes: [VISA]
+                        message: You credit card number is invalid.
+
+    .. code-block:: xml
+
+        <!-- src/Acme/SubscriptionBundle/Resources/config/validation.xml -->
+        <class name="Acme\SubscriptionBundle\Entity\Transaction">
+            <property name="cardNumber">
+                <constraint name="CardScheme">
+                    <option name="schemes">
+                        <value>VISA</value>
+                    </option>
+                    <option name="message">You credit card number is invalid.</option>
+                </constraint>
+            </property>
+        </class>
+
+    .. code-block:: php-annotations
+
+        // src/Acme/SubscriptionBundle/Entity/Transaction.php
+        use Symfony\Component\Validator\Constraints as Assert;
+
+        class Transaction
+        {
+            /**
+             * @Assert\CardScheme(schemes = {"VISA"}, message = "You credit card number is invalid.")
+             */
+            protected $cardNumber;
+        }
+
+    .. code-block:: php
+
+        // src/Acme/SubscriptionBundle/Entity/Transaction.php
+        use Symfony\Component\Validator\Mapping\ClassMetadata;
+        use Symfony\Component\Validator\Constraints\CardScheme;
+
+        class Transaction
+        {
+            protected $cardNumber;
+
+            public static function loadValidatorMetadata(ClassMetadata $metadata)
+            {
+                $metadata->addPropertyConstraint('cardSchema', new CardScheme(array(
+                    'schemes' => array(
+                        'VISA'
+                    ),
+                    'message' => 'You credit card number is invalid.',
+                )));
+            }
+        }
+
+Available Options
+-----------------
+
+schemes
+-------
+
+**type**: ``array``
+
+This option is required and represents the name of the number scheme used to 
+validate the credit card number. Valid values are:
+
+* ``AMEX``
+* ``CHINA_UNIONPAY``
+* ``DINERS``
+* ``DISCOVER``
+* ``INSTAPAYMENT``
+* ``JCB``
+* ``LASER``
+* ``MAESTRO``
+* ``MASTERCARD``
+* ``VISA``
+
+For more information about the used schemes, see `Wikipedia`_.
+
+message
+~~~~~~~
+
+**type**: ``string`` **default**: ``Unsupported card type or invalid card number``
+
+The default message supplied when the value does not pass the CardScheme check.
+
+.. _`Wikipedia`: http://en.wikipedia.org/wiki/Bank_card_number#Issuer_identification_number_.28IIN.29

reference/constraints/map.rst.inc

@@ -57,6 +57,7 @@ File Constraints
 Financial Constraints
 ~~~~~~~~~~~~~~~~~~~~~
 
+* :doc:`CardScheme </reference/constraints/CardScheme>`
 * :doc:`Luhn </reference/constraints/Luhn>`
 
 Other Constraints