Extracted Splashpage from Conference

#418

app/controllers/admin/splashpages_controller.rb

@@ -0,0 +1,49 @@
+module Admin
+  class SplashpagesController < Admin::BaseController
+    load_and_authorize_resource :conference, find_by: :short_title
+    load_and_authorize_resource through: :conference, singleton: true
+
+    def show; end
+
+    def new
+      @splashpage = @conference.build_splashpage
+    end
+
+    def edit; end
+
+    def create
+      @splashpage = @conference.build_splashpage(splashpage_params)
+
+      if @splashpage.save
+        redirect_to admin_conference_splashpage_path,
+                    notice: 'Splashpage successfully created.'
+      else
+        render :new
+      end
+    end
+
+    def update
+      if @splashpage.update_attributes(splashpage_params)
+        redirect_to admin_conference_splashpage_path,
+                    notice: 'Splashpage successfully updated.'
+      else
+        render :edit
+      end
+    end
+
+    def destroy
+      if @splashpage.destroy
+        redirect_to admin_conference_splashpage_path, notice: 'Splashpage was successfully destroyed.'
+      else
+        redirect_to admin_conference_splashpage_path, alert: "A error prohibited this Splashpage from being destroyed: "\
+        "#{@splashpage.errors.full_messages.join('. ')}."
+      end
+    end
+
+    private
+
+    def splashpage_params
+      params[:splashpage]
+    end
+  end
+end