venue_commercial association establihed

app/controllers/venue_commercial_controller.rb

@@ -0,0 +1,58 @@
+module Admin
+  class CommercialsController < Admin::BaseController
+    load_and_authorize_resource :conference, find_by: :short_title
+    load_and_authorize_resource :venue ,through: :conference, singelton: true
+    before_action :set_venue
+
+    def create
+      @commercial = @venue.commercial.build(commercial_params)
+      authorize! :create, @commercial
+
+      #FIXME redirect to tab#commercial
+      if @commercial.save
+        redirect_to admin_conference_venue_path,
+                    notice: 'Commercial was successfully created.'
+      else
+        redirect_to admin_conference_venue_path,
+                    error: 'An error prohibited this Commercial from being saved: '\
+                    "#{@commercial.errors.full_messages.join('. ')}."
+
+      end
+    end
+
+    def update
+      if @commercial.update(commercial_params)
+        redirect_to admin_conference_venue_path,
+                    notice: 'Commercial was successfully updated.'
+      else
+        redirect_to admin_conference_venue_path,
+                    error: 'An error prohibited this Commercial from being saved: '\
+                    "#{@commercial.errors.full_messages.join('. ')}."
+      end
+    end
+
+    def destroy
+      @commercial.destroy
+      redirect_to admin_conference_venue_path, notice: 'Commercial was successfully destroyed.'
+    end
+
+    def render_commercial
+      result = Commercial.render_from_url(params[:url])
+      if result[:error]
+        render text: result[:error], status: 400
+      else
+        render text: result[:html]
+      end
+    end
+
+    private
+
+    def commercial_params
+      params.require(:commercial).permit(:url)
+    end
+    
+    def set_venue
+      @venue = @conference.venue
+    end
+  end
+end