Refactoring Conference/Event media to new media object

close #420

app/controllers/admin/commercials_controller.rb

@@ -0,0 +1,57 @@
+class Admin::CommercialsController < ApplicationController
+  before_action :set_conference
+  before_action :set_commercial, only: [:edit, :update, :destroy]
+
+  def index
+    @commercials = @conference.commercials
+  end
+
+  def new
+    @commercial = @conference.commercials.build
+  end
+
+  def edit
+  end
+
+  def create
+    @commercial = @conference.commercials.build(commercial_params)
+
+    if @commercial.save
+      redirect_to admin_conference_commercials_path,
+                  notice: 'Commercial was successfully created.'
+    else
+      flash[:alert] = "A error prohibited this Commercial from being saved: #{@commercial.errors.full_messages.join('. ')}."
+      render :new
+    end
+  end
+
+  def update
+    if @commercial.update(commercial_params)
+      redirect_to admin_conference_commercials_path,
+                  notice: 'Commercial was successfully updated.'
+    else
+      flash[:alert] = "A error prohibited this Commercial from being saved: #{@commercial.errors.full_messages.join('. ')}."
+      render :edit
+    end
+  end
+
+  def destroy
+    @commercial.destroy
+    redirect_to admin_conference_commercials_path, notice: 'Commercial was successfully destroyed.'
+  end
+
+  private
+
+  def set_commercial
+    @commercial = @conference.commercials.find(params[:id])
+  end
+
+  def set_conference
+    @conference = Conference.find_by(short_title: params[:conference_id])
+  end
+
+  def commercial_params
+    #params.require(:commercial).permit(:commercial_id, :commercial_type)
+    params[:commercial]
+  end
+end