adding carousels controller

app/assets/javascripts/management/carousel.coffee

+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/management/carousel.scss

+// Place all the styles related to the management/carousel controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/management/carousel_controller.rb

+class Management::CarouselController < ManagementController
+  before_action :set_carousel, only: [:show, :create, :update, :destroy]
+
+  def index
+    @carousels = carousel_repository.all
+  end
+
+  def show
+  end
+
+  def new
+    @carousel = Carousel.new
+  end
+
+  def create
+    @carousel = Carousel.new(carousel_params)
+
+    respond_to do |format|
+      if @carousel.save
+        format.html { redirect_to management_carousel_path(@carousel), notice: "Carousel created!" }
+      else
+        format.html { render :new }
+      end
+    end
+  end
+
+  def update
+    respond_to do |format|
+      if carousel_repository.update(@carousel, carousel_params)
+        format.html { redirect_to management_carousel_path(@carousel), notice: "Carousel updated!" }
+      else
+        format.html { render :edit }
+      end
+    end
+  end
+
+  def destroy
+    carousel_repository.destroy @carousel
+    respond_to do |format|
+      format.html { redirect_to management_carousels_path, notice: "Carousel destroyed!" }
+    end
+  end
+
+  private
+
+  def carousel_repository
+    repository.for :carousel
+  end
+
+  def set_carousel
+    @carousel = carousel_repository.find params[:id]
+  end
+
+  def carousel_params
+    params.require(:carousel).permit(:title, :url, :image)
+  end
+
+end

app/helpers/management/carousel_helper.rb

+module Management::CarouselHelper
+end

test/controllers/management/carousel_controller_test.rb

+require 'test_helper'
+
+class Management::CarouselControllerTest < ActionController::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end