[action] add ability to add action by container tag

DependencyInjection/Compiler/PayumActionsPass.php

@@ -0,0 +1,99 @@
+<?php
+namespace Payum\Bundle\PayumBundle\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+
+class PayumActionsPass implements CompilerPassInterface
+{
+
+    /**
+     * {@inheritDoc}
+     */
+    public function process(ContainerBuilder $container)
+    {
+        foreach ($container->findTaggedServiceIds('payum.action') as $id => $tagAttributes) {
+
+            foreach ($tagAttributes as $attributes) {
+                $paymentIds = array();
+
+                if (isset($attributes['all']) && $attributes['all']) {
+                    $paymentIds = array_merge($paymentIds, $this->findAllPaymentIds($container));
+                }
+
+                if (isset($attributes['factory']) && $attributes['factory']) {
+                    $paymentIds = array_merge(
+                        $paymentIds,
+                        $this->findPaymentIdsByFactory($container, $attributes['factory'])
+                    );
+                }
+                if (isset($attributes['context']) && $attributes['context']) {
+                    $paymentIds = array_merge(
+                        $paymentIds,
+                        $this->findPaymentIdsByContext($container, $attributes['context'])
+                    );
+                }
+
+                $paymentIds = array_filter(array_unique($paymentIds));
+                foreach ($paymentIds as $paymentId) {
+                    $payment = $container->getDefinition($paymentId);
+                    $payment->addMethodCall('addAction', array(
+                        new Reference($id),
+                        isset($attributes['prepend']) && $attributes['prepend']
+                    ));
+                }
+            }
+        }
+    }
+
+    /**
+     * @param ContainerBuilder $container
+     * @param string $factoryName
+     *
+     * @return string[]
+     */
+    protected function findPaymentIdsByFactory(ContainerBuilder $container, $factoryName)
+    {
+        $paymentIds = array();
+        foreach ($container->findTaggedServiceIds('payum.payment') as $id => $tagAttributes) {
+            foreach ($tagAttributes as $attributes) {
+                if (isset($attributes['factory']) && $attributes['factory'] == $factoryName) {
+                    $paymentIds[] = $id;
+                }
+            }
+        }
+
+        return $paymentIds;
+    }
+
+    /**
+     * @param ContainerBuilder $container
+     * @param string $contextName
+     *
+     * @return string[]
+     */
+    protected function findPaymentIdsByContext(ContainerBuilder $container, $contextName)
+    {
+        $paymentIds = array();
+        foreach ($container->findTaggedServiceIds('payum.payment') as $id => $tagAttributes) {
+            foreach ($tagAttributes as $attributes) {
+                if (isset($attributes['context']) && $attributes['context'] == $contextName) {
+                    $paymentIds[] = $id;
+                }
+            }
+        }
+
+        return $paymentIds;
+    }
+
+    /**
+     * @param ContainerBuilder $container
+     *
+     * @return string[]
+     */
+    protected function findAllPaymentIds(ContainerBuilder $container)
+    {
+        return array_keys($container->findTaggedServiceIds('payum.payment'));
+    }
+}

DependencyInjection/Factory/Payment/PaymentFactoryInterface.php

@@ -1,13 +1,14 @@
 <?php
 namespace Payum\Bundle\PayumBundle\DependencyInjection\Factory\Payment;
 
-use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\NodeDefinition;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
 
 interface PaymentFactoryInterface
 {
     /**
-     * @param \Symfony\Component\DependencyInjection\ContainerBuilder $container
+     * @param ContainerBuilder $container
      * @param string $contextName
      * @param array $config
      * 
@@ -24,7 +25,7 @@ function create(ContainerBuilder $container, $contextName, array $config);
     function getName();
 
     /**
-     * @param \Symfony\Component\Config\Definition\Builder\NodeDefinition $builder
+     * @param NodeDefinition $builder
      * 
      * @return void
      */

DependencyInjection/PayumExtension.php

@@ -69,7 +69,12 @@ protected function loadContexts(array $config, ContainerBuilder $container)
                 $contextConfig[$paymentFactoryName]
             );
             $paymentsServicesIds[$contextName] = $paymentId;
-
+
+            $container->getDefinition($paymentId)->addTag('payum.payment', array(
+                'factory' => $paymentFactoryName,
+                'context' => $contextName
+            ));
+
             foreach ($contextConfig['storages'] as $modelClass => $storageConfig) {
                 $storageFactoryName = $this->findSelectedStorageFactoryNameInStorageConfig($storageConfig);
                 $storageId = $this->storageFactories[$storageFactoryName]->create(

PayumBundle.php

@@ -1,6 +1,7 @@
 <?php
 namespace Payum\Bundle\PayumBundle;
 
+use Payum\Bundle\PayumBundle\DependencyInjection\Compiler\PayumActionsPass;
 use Payum\Bundle\PayumBundle\DependencyInjection\Factory\Payment\KlarnaCheckoutPaymentFactory;
 use Payum\Bundle\PayumBundle\DependencyInjection\Factory\Payment\OfflinePaymentFactory;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
@@ -37,5 +38,7 @@ public function build(ContainerBuilder $container)
 
         $extension->addStorageFactory(new FilesystemStorageFactory);
         $extension->addStorageFactory(new DoctrineStorageFactory);
+
+        $container->addCompilerPass(new PayumActionsPass);
     }
 }

Resources/doc/custom_action_usage.md

@@ -0,0 +1,90 @@
+# Custom action usage
+
+Payment comes with built in actions but sometime you have to add your own. First you have to define a service:
+
+```yaml
+# src/Acme/PaymentBundle/Resources/config/services.yml
+
+services:
+    acme.payum.action.foo:
+        class: Acme\PaymentBundle\Payum\Action\FooAction
+```
+
+There are several ways to add it to a payment:
+
+* Set it explicitly in config.yml. 
+
+    ```yaml
+    # app/config/config.yml
+
+    payum:
+        contexts:
+            a_context:
+                a_factory:
+                    actions:
+                        - acme.payum.action.foo
+    ```
+
+* Tag it
+
+    
+    More powerful method is to add a tag `payum.action` to action server. Payum will do the reset.
+    You can define a `factory` attribute inside that tag. 
+    In this case the action will be added to all payments created by requested factory.
+
+    ```yaml
+    # app/config/config.yml
+
+    payum:
+        contexts:
+            a_context:
+                a_factory: ~
+    ```
+
+    ```yaml
+    # src/Acme/PaymentBundle/Resources/config/services.yml
+
+    services:
+        acme.payum.action.foo:
+            class: Acme\PaymentBundle\Payum\Action\FooAction
+            tags:
+                - {payum.action, { factory: a_factory }}
+
+    ```
+
+    Or you can set concrete `context` name. 
+    In this case the action will be added only to the payment with requested context name.
+
+    ```yaml
+    # app/config/config.yml
+
+    payum:
+        contexts:
+            a_context:
+                a_factory: ~
+    ```
+
+    ```yaml
+    # src/Acme/PaymentBundle/Resources/config/services.yml
+
+    services:
+        acme.payum.action.foo:
+            class: Acme\PaymentBundle\Payum\Action\FooAction
+            tags:
+                - {payum.action, {context: a_context}}
+    ```
+
+    If `prepend` set to true the action is added before the rest. 
+    If you want to add the action to all configured payments set `all` to true.
+
+    ```yaml
+    # src/Acme/PaymentBundle/Resources/config/services.yml
+
+    services:
+        acme.payum.action.foo:
+            class: Acme\PaymentBundle\Payum\Action\FooAction
+            tags:
+                - {payum.action, { prepend: true, all: true }}
+    ```
+
+Back to [index](index.md).

Resources/doc/index.md

@@ -3,6 +3,7 @@
 * [Get it started](get_it_started.md)
 * [Simple purchase examples](simple_purchase_examples.md).
 * [Purchase done action](purchase_done_action.md).
+* [Custom action usage](custom_action_usage.md).
 * [Custom api usage](custom_api_usage.md).
 * [Sandbox](sandbox.md).
 * [Console commands](console_commands.md).