refactor oauth applications

app/controllers/concerns/oauth_applications.rb

 module OauthApplications
   extend ActiveSupport::Concern
+  prepend ::EE::OauthApplications
 
   included do
     before_action :prepare_scopes, only: [:create, :update]
@@ -16,13 +17,4 @@ module OauthApplications
   def load_scopes
     @scopes = Doorkeeper.configuration.scopes
   end
-
-  def log_audit_event
-    AuditEventService.new(current_user,
-                          current_user,
-                          action: :custom,
-                          custom_message: 'OAuth access granted',
-                          ip_address: request.remote_ip)
-        .for_user(@application.name).security_event
-  end
 end

ee/app/controllers/ee/concerns/oauth_applications.rb

+module EE
+  module OauthApplications
+    extend ActiveSupport::Concern
+
+    def log_audit_event
+      AuditEventService.new(current_user,
+                            current_user,
+                            action: :custom,
+                            custom_message: 'OAuth access granted',
+                            ip_address: request.remote_ip)
+          .for_user(@application.name).security_event
+    end
+  end
+end