First crack at fixing the 409 problems

lib/api/helpers.rb

@@ -60,6 +60,11 @@ module API
       attrs
     end
 
+    def handle_activerecord_errors(errors)
+      attribute, message = errors.first
+      conflict!(attribute) if message == 'has already been taken'
+    end
+
     # error helpers
 
     def forbidden!
@@ -87,6 +92,11 @@ module API
       render_api_error!('Method Not Allowed', 405)
     end
 
+    def conflict!(attribute)
+      message = "409 " + attribute.to_s.camelize + " has already been taken"
+      render_api_error!(message, 409)
+    end
+
     def render_api_error!(message, status)
       error!({'message' => message}, status)
     end

lib/api/projects.rb

@@ -85,6 +85,7 @@ module API
           if @project.errors[:limit_reached].present?
             error!(@project.errors[:limit_reached], 403)
           end
+          handle_activerecord_errors(@project.errors)
           not_found!
         end
       end
@@ -116,6 +117,7 @@ module API
         if @project.saved?
           present @project, with: Entities::Project
         else
+          handle_activerecord_errors(@project.errors)
           not_found!
         end
       end