Add difficulty levels

app/controllers/admin/difficulty_levels_controller.rb

@@ -0,0 +1,30 @@
+class Admin::DifficultyLevelsController < ApplicationController
+  before_filter :verify_organizer
+  
+  def index
+    @conference = Conference.find_all_by_short_title(params[:conference_id]).first
+  end
+
+  def update
+    if @conference.update_attributes(params[:conference])
+      if !(@conference.difficulty_levels.count > 0) && @conference.use_difficulty_levels == true
+        begin 
+          @conference.use_difficulty_levels = false
+          @conference.save!
+          flash[:error] = "You cannot enable the usage of difficulty levels without having set any levels."
+          redirect_to(admin_conference_difficulty_levels_path(:conference_id => @conference.short_title))
+        rescue ActiveRecord::RecordInvalid
+          flash[:error] = "Something went wrong. Difficulty Levels update failed."
+          redirect_to(admin_conference_difficulty_levels_path(:conference_id => @conference.short_title))  
+        end
+      else
+        flash[:notice] = "Difficulty Levels were successfully updated."
+        redirect_to(admin_conference_difficulty_levels_path(:conference_id => @conference.short_title))
+      end
+    else
+      flash[:error] = "Difficulty Levels update failed."
+      redirect_to(admin_conference_difficulty_levels_path(:conference_id => @conference.short_title))
+    end
+
+  end
+end

app/controllers/admin/events_controller.rb

@@ -70,6 +70,7 @@ class Admin::EventsController < ApplicationController
     @comments = @event.root_comments
     @comment_count = @event.comment_threads.count
     @ratings = @event.votes.includes(:person)
+    @difficulty_levels = @conference.difficulty_levels
   end
 
   def edit
@@ -101,6 +102,9 @@ class Admin::EventsController < ApplicationController
     if params.has_key? :event_type_id
       @event.update_attribute(:event_type_id, params[:event_type_id])
     end
+    if params.has_key? :difficulty_level_id
+      @event.update_attribute(:difficulty_level_id, params[:difficulty_level_id])
+    end
     if @event.update_attributes(params[:event]) && @event.submitter.update_attributes(params[:person])
       flash[:notice] = "Successfully updated #{@event.title}."
     else