add class skeletons

app/controllers/books_controller.rb

@@ -0,0 +1,51 @@
+class BooksController < ApplicationController
+  before_action :set_book, only: [:show, :update, :destroy]
+
+  # GET /books
+  def index
+    @books = Book.all
+
+    render json: @books
+  end
+
+  # GET /books/1
+  def show
+    render json: @book
+  end
+
+  # POST /books
+  def create
+    @book = Book.new(book_params)
+
+    if @book.save
+      render json: @book, status: :created, location: @book
+    else
+      render json: @book.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /books/1
+  def update
+    if @book.update(book_params)
+      render json: @book
+    else
+      render json: @book.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /books/1
+  def destroy
+    @book.destroy
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_book
+      @book = Book.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def book_params
+      params.require(:book).permit(:title, :category, :cover_image, :author, :condition, :is_available, :user_id)
+    end
+end

app/controllers/ratings_controller.rb

@@ -0,0 +1,51 @@
+class RatingsController < ApplicationController
+  before_action :set_rating, only: [:show, :update, :destroy]
+
+  # GET /ratings
+  def index
+    @ratings = Rating.all
+
+    render json: @ratings
+  end
+
+  # GET /ratings/1
+  def show
+    render json: @rating
+  end
+
+  # POST /ratings
+  def create
+    @rating = Rating.new(rating_params)
+
+    if @rating.save
+      render json: @rating, status: :created, location: @rating
+    else
+      render json: @rating.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /ratings/1
+  def update
+    if @rating.update(rating_params)
+      render json: @rating
+    else
+      render json: @rating.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /ratings/1
+  def destroy
+    @rating.destroy
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_rating
+      @rating = Rating.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def rating_params
+      params.require(:rating).permit(:rate, :user_id)
+    end
+end

app/controllers/reviews_controller.rb

@@ -0,0 +1,51 @@
+class ReviewsController < ApplicationController
+  before_action :set_review, only: [:show, :update, :destroy]
+
+  # GET /reviews
+  def index
+    @reviews = Review.all
+
+    render json: @reviews
+  end
+
+  # GET /reviews/1
+  def show
+    render json: @review
+  end
+
+  # POST /reviews
+  def create
+    @review = Review.new(review_params)
+
+    if @review.save
+      render json: @review, status: :created, location: @review
+    else
+      render json: @review.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /reviews/1
+  def update
+    if @review.update(review_params)
+      render json: @review
+    else
+      render json: @review.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /reviews/1
+  def destroy
+    @review.destroy
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_review
+      @review = Review.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def review_params
+      params.require(:review).permit(:content, :rate, :book_id, :user_id)
+    end
+end

app/controllers/users_controller.rb

@@ -0,0 +1,51 @@
+class UsersController < ApplicationController
+  before_action :set_user, only: [:show, :update, :destroy]
+
+  # GET /users
+  def index
+    @users = User.all
+
+    render json: @users
+  end
+
+  # GET /users/1
+  def show
+    render json: @user
+  end
+
+  # POST /users
+  def create
+    @user = User.new(user_params)
+
+    if @user.save
+      render json: @user, status: :created, location: @user
+    else
+      render json: @user.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /users/1
+  def update
+    if @user.update(user_params)
+      render json: @user
+    else
+      render json: @user.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /users/1
+  def destroy
+    @user.destroy
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_user
+      @user = User.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def user_params
+      params.require(:user).permit(:username, :email, :phone, :location)
+    end
+end

app/models/book.rb

@@ -0,0 +1,3 @@
+class Book < ApplicationRecord
+  belongs_to :user
+end

app/models/rating.rb

@@ -0,0 +1,3 @@
+class Rating < ApplicationRecord
+  belongs_to :user
+end

app/models/review.rb

@@ -0,0 +1,4 @@
+class Review < ApplicationRecord
+  belongs_to :book
+  belongs_to :user
+end

app/models/user.rb

@@ -0,0 +1,3 @@
+class User < ApplicationRecord
+  has_many :books
+end

app/serializers/book_serializer.rb

@@ -0,0 +1,4 @@
+class BookSerializer < ActiveModel::Serializer
+  attributes :id, :title, :category, :cover_image, :author, :condition, :is_available
+  has_one :user
+end

app/serializers/rating_serializer.rb

@@ -0,0 +1,4 @@
+class RatingSerializer < ActiveModel::Serializer
+  attributes :id, :rate
+  has_one :user
+end

app/serializers/review_serializer.rb

@@ -0,0 +1,5 @@
+class ReviewSerializer < ActiveModel::Serializer
+  attributes :id, :content, :rate
+  has_one :book
+  has_one :user
+end

app/serializers/user_serializer.rb

@@ -0,0 +1,3 @@
+class UserSerializer < ActiveModel::Serializer
+  attributes :id, :username, :email, :phone, :location
+end

config/routes.rb

@@ -1,5 +1,9 @@
 Rails.application.routes.draw do
 
+  resources :ratings
+  resources :reviews
+  resources :books
+  resources :users
   # Routing logic: fallback requests for React Router.
   # Leave this here to help deploy your app later!
   get "*path", to: "fallback#index", constraints: ->(req) { !req.xhr? && req.format.html? }

db/migrate/20221011121838_create_users.rb

@@ -0,0 +1,12 @@
+class CreateUsers < ActiveRecord::Migration[6.1]
+  def change
+    create_table :users do |t|
+      t.string :username
+      t.string :email
+      t.string :phone
+      t.string :location
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20221011122442_create_books.rb

@@ -0,0 +1,15 @@
+class CreateBooks < ActiveRecord::Migration[6.1]
+  def change
+    create_table :books do |t|
+      t.string :title
+      t.string :category
+      t.string :cover_image
+      t.string :author
+      t.string :condition
+      t.boolean :is_available
+      t.references :user, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20221011122916_create_reviews.rb

@@ -0,0 +1,12 @@
+class CreateReviews < ActiveRecord::Migration[6.1]
+  def change
+    create_table :reviews do |t|
+      t.text :content
+      t.integer :rate
+      t.references :book, null: false, foreign_key: true
+      t.references :user, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20221011123006_create_ratings.rb

@@ -0,0 +1,10 @@
+class CreateRatings < ActiveRecord::Migration[6.1]
+  def change
+    create_table :ratings do |t|
+      t.integer :rate
+      t.references :user, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

spec/models/book_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Book, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/rating_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Rating, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/review_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe Review, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end

spec/models/user_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe User, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end