add new scope based on class

src/Dmishh/Bundle/SettingsBundle/DependencyInjection/Configuration.php

@@ -56,6 +56,10 @@ public function getConfigTreeBuilder()
                 ->arrayNode('settings')
                     ->prototype('array')
                         ->addDefaultsIfNotSet()
+                        ->validate()
+                            ->ifTrue(function($v){ return SettingsManagerInterface::SCOPE_USER === $v['scope'] && !isset($v['namespace']);})
+                            ->thenInvalid('You must define a namespace for the scope user.')
+                        ->end()
                         ->children()
                             ->scalarNode('scope')
                                 ->defaultValue('all')
@@ -64,6 +68,9 @@ public function getConfigTreeBuilder()
                                     ->thenInvalid('Invalid scope %s. Valid scopes are: ' . implode(', ', array_map(function ($s) { return '"' . $s . '"'; }, $scopes)) . '.')
                                 ->end()
                             ->end()
+                            ->scalarNode('namespace')
+                                ->defaultValue(null)
+                            ->end()
                             ->arrayNode('validation')
                                 ->addDefaultsIfNotSet()
                                 ->children()

src/Dmishh/Bundle/SettingsBundle/Exception/WrongScopeException.php

@@ -15,12 +15,16 @@
 
 class WrongScopeException extends SettingsException
 {
-    public function __construct($scope, $settingName)
+    public function __construct($scope, $settingName, $namespace = null)
     {
         if ($scope === SettingsManagerInterface::SCOPE_GLOBAL) {
             $message = sprintf('You tried to access setting "%s" but it is in the "%s" scope which means you must not use a SettingOwnerInterface object with this option.', $settingName, $scope);
         } elseif ($scope === SettingsManagerInterface::SCOPE_USER) {
-            $message = sprintf('You tried to access setting "%s" but it is in the "%s" scope which means you have to pass a SettingOwnerInterface object with this option.', $settingName, $scope);
+            if ($namespace !== null) {
+                $message = sprintf('You tried to access setting "%s" but it\'s namespace scope is for %s .', $settingName, $namespace);
+            } else {
+                $message = sprintf('You tried to access setting "%s" but it is in the "%s" scope which means you have to pass a SettingOwnerInterface object with this option.', $settingName, $scope);
+            }
         } else {
             $message = sprintf('Wrong scope "%s" for setting "%s". Check your configuration.', $scope, $settingName);
         }

src/Dmishh/Bundle/SettingsBundle/Manager/SettingsManager.php

@@ -263,6 +263,11 @@ private function validateSetting($name, SettingsOwnerInterface $owner = null)
         if ($scope !== SettingsManagerInterface::SCOPE_ALL) {
             if ($scope === SettingsManagerInterface::SCOPE_GLOBAL && $owner !== null || $scope === SettingsManagerInterface::SCOPE_USER && $owner === null) {
                 throw new WrongScopeException($scope, $name);
+            } elseif ($owner !== null) {
+                $namespace = $this->settingsConfiguration[$name]['namespace'];
+                if (!$owner instanceof $namespace) {
+                    throw new WrongScopeException($scope, $name, $namespace);
+                }
             }
         }