Add Author to Article Show Page

app/controllers/articles_controller.rb

@@ -8,7 +8,7 @@ def create
     @article = Article.new(article_params)
     if @article.save
       flash[:success] = "Article was successfully created."
-      redirect_to @article
+      redirect_to article_path(@article)
     else
       flash[:error] = "Field cannot be blank"
       render 'new'
@@ -22,6 +22,6 @@ def show
   private
 
   def article_params
-    params[:article].permit(:title, :content)
+    params[:article].permit(:title, :content, :author)
   end
 end

app/models/article.rb

@@ -1,3 +1,5 @@
 class Article < ApplicationRecord
-  validates :title, :content, presence: true
+  validates :title, :content, :author, presence: true
+
+  belongs_to :author
 end

app/models/author.rb

@@ -0,0 +1,5 @@
+class Author < ApplicationRecord
+  validates :author, presence: true
+
+  has_many :articles
+end

app/views/articles/new.html.haml

@@ -3,6 +3,10 @@
     = form.label :title
     %br/
     = form.text_field :title, id: :article_title
+  %p
+    = form.label :author
+    %br/
+    = form.text_field :author, id: :article_author
   %p
     = form.label :content
     %br/

app/views/articles/show.html.haml

@@ -1,6 +1,9 @@
 %p
   %strong Title:
   = @article.title
+%p
+  %strong Authors:
+  [email protected]
 %p
   %strong Text:
   = @article.content

db/migrate/20180318172631_create_author.rb

@@ -0,0 +1,7 @@
+class CreateAuthor < ActiveRecord::Migration[5.2]
+  def change
+    create_table :authors do |t|
+      t.string :author
+    end
+  end
+end

db/migrate/20180318173006_add_author_ref_to_article.rb

@@ -0,0 +1,5 @@
+class AddAuthorRefToArticle < ActiveRecord::Migration[5.2]
+  def change
+    add_reference :articles, :author, 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: 2018_03_17_113155) do
+ActiveRecord::Schema.define(version: 2018_03_18_173006) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -20,6 +20,13 @@
     t.text "content"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.string "author"
+    t.bigint "author_id"
+    t.index ["author_id"], name: "index_articles_on_author_id"
+  end
+
+  create_table "authors", force: :cascade do |t|
+    t.string "author"
   end
 
   create_table "users", force: :cascade do |t|
@@ -40,4 +47,5 @@
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 
+  add_foreign_key "articles", "authors"
 end

features/support/warden.rb

@@ -1,3 +1,3 @@
 Warden.test_mode!
 World Warden::Test::Helpers
-After { Warden.test_reset! }
+After { Warden.test_reset! }

spec/factories/authors.rb

@@ -0,0 +1,5 @@
+FactoryBot.define do
+  factory :author do
+    author 'Man McMaster'
+  end
+end

spec/models/article_spec.rb

@@ -8,12 +8,16 @@
 
   describe 'Factory' do
     it 'should have valid Factory' do
-      expect(create(:article)).to be_valid
+      expect(create(:author)).to be_valid
     end
   end
 
   describe 'Validations' do
     it { is_expected.to validate_presence_of :title }
     it { is_expected.to validate_presence_of :content }
   end
+
+  describe 'Associations' do
+    it { should belong_to :author }
+  end
 end

spec/models/author_spec.rb

@@ -0,0 +1,17 @@
+require 'rails_helper'
+
+RSpec.describe Author, type: :model do
+  describe 'Associations' do
+    it { should have_many :articles}
+  end
+
+  describe 'Validations' do
+    it { is_expected.to validate_presence_of :author }
+  end
+
+  describe 'Factory' do
+    it 'should have valid Factory' do
+      expect(create(:author)).to be_valid
+    end
+  end
+end