Create action for user create and update their product

.gitignore

@@ -17,3 +17,6 @@
 /yarn-error.log
 
 .byebug_history
+
+# Ignore public/uploads folder
+/public/uploads/*
\ No newline at end of file

Gemfile

@@ -42,6 +42,8 @@ gem 'faker', '~> 1.6', '>= 1.6.3'
 gem 'kaminari', '~> 1.0', '>= 1.0.1'
 # Flexible authentication solution for Rails with Warden
 gem 'devise', '~> 4.3'
+# Automatic Ruby code style checking tool. Aims to enforce the community-driven Ruby Style Guide.
+gem 'rubocop', '~> 0.49.1'
 
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development

Gemfile.lock

@@ -41,6 +41,7 @@ GEM
     addressable (2.5.1)
       public_suffix (~> 2.0, >= 2.0.2)
     arel (8.0.0)
+    ast (2.3.0)
     autoprefixer-rails (7.1.1)
       execjs
     bcrypt (3.1.11)
@@ -121,6 +122,10 @@ GEM
     nokogiri (1.8.0)
       mini_portile2 (~> 2.2.0)
     orm_adapter (0.5.0)
+    parallel (1.11.2)
+    parser (2.4.0.0)
+      ast (~> 2.2)
+    powerpack (0.1.1)
     public_suffix (2.0.5)
     puma (3.9.1)
     rack (2.0.3)
@@ -149,6 +154,8 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
+    rainbow (2.2.2)
+      rake
     rake (12.0.0)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.8)
@@ -156,6 +163,14 @@ GEM
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
+    rubocop (0.49.1)
+      parallel (~> 1.10)
+      parser (>= 2.3.3.1, < 3.0)
+      powerpack (~> 0.1)
+      rainbow (>= 1.99.1, < 3.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (~> 1.0, >= 1.0.1)
+    ruby-progressbar (1.8.1)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
     sass (3.4.24)
@@ -191,6 +206,7 @@ GEM
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
+    unicode-display_width (1.2.1)
     warden (1.2.7)
       rack (>= 1.0)
     web-console (3.5.1)
@@ -223,6 +239,7 @@ DEPENDENCIES
   mysql2 (>= 0.3.18, < 0.5)
   puma (~> 3.7)
   rails (~> 5.1.1)
+  rubocop (~> 0.49.1)
   sass-rails (~> 5.0)
   selenium-webdriver
   spring

app/controllers/products_controller.rb

 class ProductsController < ApplicationController
+  before_action :authenticate_user!, only: [:new, :edit, :create, :update, :destroy]
+  before_action :correct_user, only: [:edit, :destroy]
+
+  def new
+    @product = current_user.products.build
+  end
+
+  def create
+    @product = current_user.products.build(product_params)
+    if @product.save
+      redirect_to root_url
+    else
+      render 'new'
+    end
+  end
+
+  def edit
+    @product = Product.find(params[:id])
+  end
+
+  def update
+    @product = Product.find(params[:id])
+    if @product.update(product_params)
+      redirect_to root_url
+    else
+      render 'edit'
+    end
+  end
+
+  private
+
+  def product_params
+    params.require(:product).permit(:title, :sku, :price, :description,
+                                    :category_id, :image_url)
+  end
+
+  def correct_user
+    product = current_user.products.find_by(id: params[:id])
+    redirect_to root_url if product.nil?
+  end
 end
\ No newline at end of file

app/helpers/products_helper.rb

 module ProductsHelper
   def get_product_thumbnail(product, thumbnail_width, thumbnail_height)
-    product.image_url ||
-      "product/placeholder_#{thumbnail_width}x#{thumbnail_height}"
+    # product.image_url always returns PictureUploader object
+    default_img_path = "product/placeholder_#{thumbnail_width}x#{thumbnail_height}"
+    product.image_url.present? ? product.image_url : default_img_path
   end
 end
\ No newline at end of file

app/models/product.rb

 class Product < ApplicationRecord
   belongs_to :category
+  belongs_to :user
+  mount_uploader :image_url, PictureUploader
+  validates :category_id, presence: true
 end
\ No newline at end of file

app/models/user.rb

@@ -3,4 +3,5 @@ class User < ApplicationRecord
   # :confirmable, :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
+  has_many :products
 end

app/uploaders/picture_uploader.rb

+class PictureUploader < CarrierWave::Uploader::Base
+
+  # Include RMagick or MiniMagick support:
+  # include CarrierWave::RMagick
+  # include CarrierWave::MiniMagick
+
+  # Choose what kind of storage to use for this uploader:
+  storage :file
+  # storage :fog
+
+  # Override the directory where uploaded files will be stored.
+  # This is a sensible default for uploaders that are meant to be mounted:
+  def store_dir
+    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
+  end
+
+  # Provide a default URL as a default if there hasn't been a file uploaded:
+  # def default_url(*args)
+  #   # For Rails 3.1+ asset pipeline compatibility:
+  #   # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
+  #
+  #   "/images/fallback/" + [version_name, "default.png"].compact.join('_')
+  # end
+
+  # Process files as they are uploaded:
+  # process scale: [200, 300]
+  #
+  # def scale(width, height)
+  #   # do something
+  # end
+
+  # Create different versions of your uploaded files:
+  # version :thumb do
+  #   process resize_to_fit: [50, 50]
+  # end
+
+  # Add a white list of extensions which are allowed to be uploaded.
+  # For images you might use something like this:
+  # def extension_whitelist
+  #   %w(jpg jpeg gif png)
+  # end
+
+  # Override the filename of the uploaded files:
+  # Avoid using model.id or version_name here, see uploader/store.rb for details.
+  # def filename
+  #   "something.jpg" if original_filename
+  # end
+
+end

app/views/devise/registrations/edit.html.erb

@@ -15,7 +15,7 @@
               <div class="row">
                 <div class="col-xs-12">
                   <div class="form-group">
-                    <%= f.label :email %><br />
+                    <%= f.label :email %>
                     <%= f.email_field :email, autofocus: true, class: "form-control" %>
                   </div>
                 </div>

app/views/products/_form.html.erb

+<%= form_for(@product) do |f| %>
+    <%= render 'shared/error_messages', object: @product %>
+
+    <div class="row">
+      <div class="col-xs-12">
+        <div class="form-group">
+          <%= f.label :title %>
+          <%= f.text_field :title, class: "form-control" %>
+        </div>
+      </div>
+
+      <div class="col-md-6">
+        <div class="form-group">
+          <%= f.label :sku %>
+          <%= f.text_field :sku, class: "form-control", step: :any %>
+        </div>
+      </div>
+
+      <div class="col-md-6">
+        <div class="form-group">
+          <%= f.label :price %>
+          <%= f.number_field :price, class: "form-control" %>
+        </div>
+      </div>
+
+      <div class="col-xs-12">
+        <div class="form-group">
+          <%= f.label :description %>
+          <%= f.text_area :description, class: "form-control", rows: 7 %>
+        </div>
+      </div>
+
+      <div class="col-xs-12">
+        <div class="form-group">
+          <%= f.label :category, 'Product Category' %>
+          <%= f.collection_select :category_id, Category.all, :id, :title, { prompt: 'Select a category' }, class: 'form-control' %>
+        </div>
+      </div>
+
+      <div class="col-xs-12">
+        <div class="form-group">
+          <%= f.label :image_url, 'Product Image' %>
+          <%= f.file_field :image_url %>
+        </div>
+      </div>
+
+      <div class="row">
+        <div class="col-xs-12">
+          <div class="form-action clearfix mt-none">
+            <%= f.submit "Submit", class: "btn btn-primary" %>
+          </div>
+        </div>
+      </div>
+    </div>
+<% end %>
\ No newline at end of file

app/views/products/edit.html.erb

+<div class="container">
+  <div class="row">
+    <div class="col-md-9 col-md-push-3 create-product form-section">
+      <h1 class="h2 heading-primary font-weight-normal">
+        Edit Product #<%= @product.id %>
+      </h1>
+
+      <div class="featured-box featured-box-primary featured-box-flat featured-box-text-left mt-md">
+        <div class="box-content">
+          <%= render 'form' %>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>
\ No newline at end of file

app/views/products/new.html.erb

+<div class="container">
+  <div class="row">
+    <div class="col-md-9 col-md-push-3 create-product form-section">
+      <h1 class="h2 heading-primary font-weight-normal">
+        New Product
+      </h1>
+
+      <div class="featured-box featured-box-primary featured-box-flat featured-box-text-left mt-md">
+        <div class="box-content">
+          <%= render 'form' %>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>
\ No newline at end of file

app/views/shared/_error_messages.html.erb

+<% if object.errors.any? %>
+  <div id="error_explanation" class="alert alert-danger">
+    <h4><%= pluralize(object.errors.count, "error") %> prohibited your data from being saved:</h4>
+    <ul>
+      <% object.errors.full_messages.each do |message| %>
+          <li><%= message %></li>
+      <% end %>
+    </ul>
+  </div>
+<% end %>
\ No newline at end of file

config/routes.rb

@@ -3,4 +3,5 @@ Rails.application.routes.draw do
   root 'static_pages#index'
   resources :categories
   devise_for :users
+  resources :products
 end

db/migrate/20170608073720_add_user_ref_to_products.rb

+class AddUserRefToProducts < ActiveRecord::Migration[5.1]
+  def change
+    add_reference :products, :user, foreign_key: true
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170608032601) do
+ActiveRecord::Schema.define(version: 20170608073720) do
 
   create_table "categories", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t|
     t.string "title"
@@ -26,7 +26,9 @@ ActiveRecord::Schema.define(version: 20170608032601) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "image_url"
+    t.bigint "user_id"
     t.index ["category_id"], name: "index_products_on_category_id"
+    t.index ["user_id"], name: "index_products_on_user_id"
   end
 
   create_table "users", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t|
@@ -47,4 +49,5 @@ ActiveRecord::Schema.define(version: 20170608032601) do
   end
 
   add_foreign_key "products", "categories"
+  add_foreign_key "products", "users"
 end

db/seeds.rb

@@ -11,7 +11,7 @@ Category.destroy_all
 
 # Create Product Categories
 4.times do |n|
-  title = "Category #{n}"
+  title = "Category #{n + 1}"
   desc = Faker::Lorem.paragraphs
   Category.create!(title: title, description: desc)
 end