save progress. added user feedback view and stuff

app/controllers/user_exercise_feedbacks_controller.rb

@@ -0,0 +1,42 @@
+class UserExerciseFeedbackController < ApplicationController
+  include CommonBehavior
+
+  def authorize!
+    authorize(@uef)
+  end
+  private :authorize!
+
+  def create
+    @tag = Tag.new(tag_params)
+    authorize!
+    create_and_respond(object: @tag)
+  end
+
+  def destroy
+    destroy_and_respond(object: @tag)
+  end
+
+  def edit
+  end
+
+  def uef_params
+    params[:tag].permit(:feedback_text, :difficulty)
+  end
+  private :uef_params
+
+  def new
+    @uef = UserExerciseFeedback.new
+    authorize!
+  end
+
+  def show
+  end
+
+  def update
+    update_and_respond(object: @UserExerciseFeedback, params: uef_params)
+  end
+
+  def to_s
+    name
+  end
+end