Add a fake "provider" configuration node to satisfy SecurityExtension…

…, issue #179

DependencyInjection/Factory/Security/TwoFactorFactory.php

@@ -57,6 +57,8 @@ public function addConfiguration(NodeDefinition $node)
             ->scalarNode('csrf_token_generator')->defaultNull()->end()
             ->scalarNode('csrf_parameter')->defaultValue(self::DEFAULT_CSRF_PARAMETER)->end()
             ->scalarNode('csrf_token_id')->defaultValue(self::DEFAULT_CSRF_TOKEN_ID)->end()
+            // Fake node for SecurityExtension, which requires a provider to be set when multiple user providers are registered
+            ->scalarNode('provider')->defaultNull()->end()
         ;
     }
 

Resources/doc/configuration.md

@@ -96,6 +96,11 @@ security:
                 csrf_token_generator: security.csrf.token_manager # CSRF protection will be enabled if a service id of CsrfTokenManagerInterface is given. Default: null
                 csrf_parameter: _csrf_token                       # The default CSRF parameter name
                 csrf_token_id: two_factor                         # The default CSRF token id, used for generating the token value. It is advised to use a different id per form
+
+                # If you have multiple user providers registered, Symfony's security extension requires you to configure
+                # a user provider. You're forced to configure this node, although it doesn't have any effect on the
+                # TwoFactorBundle. So set this to any of you user providers, it doesn't matter which one.
+                provider: any_user_provider
 ```
 
 For detailed information on the authentication methods see the individual documentation: