Tapes are now Clips, also they have categories

app/controllers/categories_controller.rb

@@ -0,0 +1,49 @@
+class CategoriesController < ApplicationController
+  allow_unauthenticated_access only: %i[ index show ]
+  before_action :set_category, only: %i[ show edit update destroy ]
+  def index
+    @categories = Category.all
+  end
+
+  def show
+    @clips = Clip.where("category_id = ?", params[:id])
+  end
+
+  def new
+    @category = Category.new
+  end
+
+  def create
+    @category = Category.new(category_params)
+    if @category.save
+      redirect_to @category
+    else
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  def edit
+  end
+
+  def update
+    if @category.update(category_params)
+      redirect_to @category
+    else
+      render :edit, status: :unprocessable_entity
+    end
+  end
+
+  def destroy
+    @category.destroy
+    redirect_to categories_path
+  end
+
+  private
+    def set_category
+      @category = Category.find(params[:id])
+    end
+
+    def category_params
+      params.expect(category: [ :name ])
+    end
+end