added a way to disable forms, and force validation to be enabled when forms are enabled (closes #840)

UPDATE.md

@@ -9,19 +9,27 @@ timeline closely anyway.
 beta1 to beta2
 --------------
 
+* Forms must now be explicitly enabled (automatically done in Symfony SE):
+
+        form: ~
+
+        # equivalent to
+        form:
+            enabled: true
+
 * The Routing Exceptions have been moved:
 
-    Before:
+  Before:
 
-    Symfony\Component\Routing\Matcher\Exception\Exception
-    Symfony\Component\Routing\Matcher\Exception\NotFoundException
-    Symfony\Component\Routing\Matcher\Exception\MethodNotAllowedException
+        Symfony\Component\Routing\Matcher\Exception\Exception
+        Symfony\Component\Routing\Matcher\Exception\NotFoundException
+        Symfony\Component\Routing\Matcher\Exception\MethodNotAllowedException
 
-    After:
+  After:
 
-    Symfony\Component\Routing\Exception\Exception
-    Symfony\Component\Routing\Exception\NotFoundException
-    Symfony\Component\Routing\Exception\MethodNotAllowedException
+        Symfony\Component\Routing\Exception\Exception
+        Symfony\Component\Routing\Exception\NotFoundException
+        Symfony\Component\Routing\Exception\MethodNotAllowedException
 
 * The form component's ``csrf_page_id`` option has been renamed to
   ``intention``.

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php

@@ -46,7 +46,7 @@ class Configuration implements ConfigurationInterface
             ->end()
         ;
 
-        $this->addCsrfProtectionSection($rootNode);
+        $this->addFormSection($rootNode);
         $this->addEsiSection($rootNode);
         $this->addProfilerSection($rootNode);
         $this->addRouterSection($rootNode);
@@ -58,10 +58,18 @@ class Configuration implements ConfigurationInterface
         return $treeBuilder;
     }
 
-    private function addCsrfProtectionSection(ArrayNodeDefinition $rootNode)
+    private function addFormSection(ArrayNodeDefinition $rootNode)
     {
         $rootNode
             ->children()
+                ->arrayNode('form')
+                    ->canBeUnset()
+                    ->treatNullLike(array('enabled' => true))
+                    ->treatTrueLike(array('enabled' => true))
+                    ->children()
+                        ->booleanNode('enabled')->defaultTrue()->end()
+                    ->end()
+                ->end()
                 ->arrayNode('csrf_protection')
                     ->canBeUnset()
                     ->treatNullLike(array('enabled' => true))
@@ -84,7 +92,7 @@ class Configuration implements ConfigurationInterface
                     ->treatNullLike(array('enabled' => true))
                     ->treatTrueLike(array('enabled' => true))
                     ->children()
-                        ->booleanNode('enabled')->end()
+                        ->booleanNode('enabled')->defaultTrue()->end()
                     ->end()
                 ->end()
             ->end()
@@ -228,6 +236,8 @@ class Configuration implements ConfigurationInterface
             ->children()
                 ->arrayNode('translator')
                     ->canBeUnset()
+                    ->treatNullLike(array('enabled' => true))
+                    ->treatTrueLike(array('enabled' => true))
                     ->children()
                         ->booleanNode('enabled')->defaultTrue()->end()
                         ->scalarNode('fallback')->defaultValue('en')->end()
@@ -243,6 +253,8 @@ class Configuration implements ConfigurationInterface
             ->children()
                 ->arrayNode('validation')
                     ->canBeUnset()
+                    ->treatNullLike(array('enabled' => true))
+                    ->treatTrueLike(array('enabled' => true))
                     // For XML, namespace is a child of validation, so it must be moved under annotations
                     ->beforeNormalization()
                         ->ifTrue(function($v) { return is_array($v) && !empty($v['annotations']) && !empty($v['namespace']); })
@@ -253,7 +265,7 @@ class Configuration implements ConfigurationInterface
                         })
                     ->end()
                     ->children()
-                        ->booleanNode('enabled')->end()
+                        ->booleanNode('enabled')->defaultTrue()->end()
                         ->scalarNode('cache')->end()
                         ->arrayNode('annotations')
                             ->canBeUnset()

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php

@@ -69,7 +69,18 @@ class FrameworkExtension extends Extension
             $loader->load('test.xml');
         }
 
-        $this->registerFormConfiguration($config, $container, $loader);
+        if (isset($config['session'])) {
+            $this->registerSessionConfiguration($config['session'], $container, $loader);
+        }
+
+        if ($hasForm = isset($config['form']) && !empty($config['form']['enabled'])) {
+            $this->registerFormConfiguration($config, $container, $loader);
+            $config['validation']['enabled'] = true;
+        }
+
+        if (!empty($config['validation']['enabled'])) {
+            $this->registerValidationConfiguration($config['validation'], $container, $loader);
+        }
 
         if (isset($config['esi'])) {
             $this->registerEsiConfiguration($config['esi'], $loader);
@@ -83,10 +94,6 @@ class FrameworkExtension extends Extension
             $this->registerRouterConfiguration($config['router'], $container, $loader);
         }
 
-        if (isset($config['session'])) {
-            $this->registerSessionConfiguration($config['session'], $container, $loader);
-        }
-
         if (isset($config['templating'])) {
             $this->registerTemplatingConfiguration($config['templating'], $config['ide'], $container, $loader);
         }
@@ -95,10 +102,6 @@ class FrameworkExtension extends Extension
             $this->registerTranslatorConfiguration($config['translator'], $container);
         }
 
-        if (isset($config['validation'])) {
-            $this->registerValidationConfiguration($config['validation'], $container, $loader);
-        }
-
         $this->addClassesToCompile(array(
             'Symfony\\Component\\HttpFoundation\\ParameterBag',
             'Symfony\\Component\\HttpFoundation\\HeaderBag',
@@ -151,7 +154,7 @@ class FrameworkExtension extends Extension
             $container->setParameter('form.type_extension.csrf.field_name', $config['csrf_protection']['field_name']);
         }
 
-        if (isset($config['session'])) {
+        if ($container->hasDefinition('session')) {
             $container->removeDefinition('file.temporary_storage');
             $container->setDefinition('file.temporary_storage', $container->getDefinition('file.temporary_storage.session'));
             $container->removeDefinition('file.temporary_storage.session');
@@ -453,10 +456,6 @@ class FrameworkExtension extends Extension
      */
     private function registerValidationConfiguration(array $config, ContainerBuilder $container, XmlFileLoader $loader)
     {
-        if (empty($config['enabled'])) {
-            return;
-        }
-
         $loader->load('validator.xml');
 
         $container->setParameter('validator.mapping.loader.xml_files_loader.mapping_files', $this->getValidatorXmlMappingFiles($container));

src/Symfony/Bundle/FrameworkBundle/Resources/config/schema/symfony-1.0.xsd

@@ -9,6 +9,7 @@
 
     <xsd:complexType name="config">
         <xsd:all>
+            <xsd:element name="form" type="form" minOccurs="0" maxOccurs="1" />
             <xsd:element name="csrf-protection" type="csrf_protection" minOccurs="0" maxOccurs="1" />
             <xsd:element name="esi" type="esi" minOccurs="0" maxOccurs="1" />
             <xsd:element name="profiler" type="profiler" minOccurs="0" maxOccurs="1" />
@@ -35,6 +36,10 @@
         </xsd:restriction>
     </xsd:simpleType>
 
+    <xsd:complexType name="form">
+        <xsd:attribute name="enabled" type="xsd:boolean" />
+    </xsd:complexType>
+
     <xsd:complexType name="csrf_protection">
         <xsd:attribute name="enabled" type="xsd:boolean" />
         <xsd:attribute name="field-name" type="xsd:string" />

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/full.php

@@ -2,6 +2,7 @@
 
 $container->loadFromExtension('framework', array(
     'secret' => 's3cr3t',
+    'form' => null,
     'csrf_protection' => array(
         'enabled'    => true,
         'field_name' => '_csrf',

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/full.xml

@@ -8,6 +8,7 @@
 
     <framework:config secret="s3cr3t">
         <framework:csrf-protection enabled="true" field-name="_csrf" />
+        <framework:form />
         <framework:esi enabled="true" />
         <framework:profiler only-exceptions="true" />
         <framework:router cache-warmer="true" resource="%kernel.root_dir%/config/routing.xml" type="xml" />

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/full.yml

@@ -1,5 +1,6 @@
 framework:
     secret: s3cr3t
+    form: ~
     csrf_protection:
         enabled:    true
         field_name: _csrf