Improve development

.gitignore

@@ -22,3 +22,5 @@ config/application.yml
 # Ignore Sqlite DB
 db/*.sqlite3
 
+# Ignore image files attachments
+/public/system

Gemfile

@@ -18,14 +18,18 @@ gem 'coffee-rails', '~> 4.2'
 gem 'jquery-rails'
 gem 'turbolinks', '~> 5'
 gem 'jbuilder', '~> 2.5'
+
 group :development, :test do
   gem 'byebug', platform: :mri
 end
 
 group :development do
+  gem 'better_errors'
+  gem 'binding_of_caller'
   gem 'web-console', '>= 3.3.0'
   gem 'listen', '~> 3.0.5'
   gem 'spring'
   gem 'spring-watcher-listen', '~> 2.0.0'
 end
+
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

@@ -42,7 +42,13 @@ GEM
     autoprefixer-rails (7.1.4.1)
       execjs
     bcrypt (3.1.11)
+    better_errors (2.4.0)
+      coderay (>= 1.0.0)
+      erubi (>= 1.0.0)
+      rack (>= 0.9.0)
     bindex (0.5.0)
+    binding_of_caller (0.7.3)
+      debug_inspector (>= 0.0.1)
     bootstrap-sass (3.3.7)
       autoprefixer-rails (>= 5.2.1)
       sass (>= 3.3.4)
@@ -51,6 +57,7 @@ GEM
     climate_control (0.2.0)
     cocaine (0.5.8)
       climate_control (>= 0.0.3, < 1.0)
+    coderay (1.1.2)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0)
@@ -60,12 +67,14 @@ GEM
     coffee-script-source (1.12.2)
     concurrent-ruby (1.0.5)
     crass (1.0.2)
+    debug_inspector (0.0.3)
     devise (4.3.0)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0, < 5.2)
       responders
       warden (~> 1.2.3)
+    erubi (1.7.0)
     erubis (2.7.0)
     execjs (2.7.0)
     ffi (1.9.18)
@@ -191,6 +200,8 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  better_errors
+  binding_of_caller
   bootstrap-sass (~> 3.3, >= 3.3.6)
   byebug
   coffee-rails (~> 4.2)

app/models/book.rb

@@ -2,6 +2,6 @@ class Book < ApplicationRecord
   belongs_to :user
   belongs_to :category
   has_many :reviews
-  has_attached_file :book_img, styles: { book_index: "300x300>", book_show: "325x475>" }, default_url: "/images/:style/missing.png"
+  has_attached_file :book_img, styles: { book_index: "300x300>", book_show: "325x475>" }, default_url: "/images/missing.png"
   validates_attachment_content_type :book_img, content_type: /\Aimage\/.*\z/
 end

db/seeds.rb

@@ -5,3 +5,40 @@
 #
 #   movies = Movie.create([{ name: 'Star Wars' }, { name: 'Lord of the Rings' }])
 #   Character.create(name: 'Luke', movie: movies.first)
+
+categories_names = ["Fantasy", "Technology", "Biography", "Fiction"]
+categories_names.each do |category_name|
+  Category.find_or_create_by(name: category_name)
+end
+puts 'Categories seeded.'
+
+user_1 = User.where(email: 'user_1@example.org').first_or_create!(
+  password: 'test123',
+  password_confirmation: 'test123'
+)
+
+user_2 = User.where(email: 'user_2@example.org').first_or_create!(
+  password: 'test123',
+  password_confirmation: 'test123'
+)
+puts 'Users seeded.'
+
+categories = Category.first(10)
+(0..2).to_a.each do |category_index|
+  category = categories[category_index]
+  (1..3).to_a.each do |number|
+    book = Book.where(title: "Book #{number}", category_id: category.id).first_or_create!(
+      description: "Description of Book in category #{category.name}",
+      author: 'Author of Book',
+      user: user_1
+    )
+
+    if book.reviews.empty?
+      book.reviews.create([
+        { rating: rand(5), comment: 'Comment for Book', user: user_1 },
+        { rating: rand(5), comment: 'Comment for Book', user: user_2 }
+      ])
+    end
+  end
+end
+puts 'Books and Reviews seeded.'