Add Author to Article Show Page

app/controllers/articles_controller.rb

@@ -10,6 +10,7 @@ def new
 
   def create
     @article = Article.new(article_params)
+    @article.user = current_user
     if @article.save
       flash[:success] = "Article was successfully created."
       redirect_to @article
@@ -48,6 +49,6 @@ def destroy
   private
 
   def article_params
-    params[:article].permit(:title, :content)
+    params.require(:article).permit(:title, :content)
   end
 end

app/models/article.rb

@@ -1,4 +1,6 @@
 class Article < ApplicationRecord
   validates :title, :content, presence: true
+
+  belongs_to :user, optional: true
   has_many :comments, dependent: :destroy
 end

app/models/comment.rb

@@ -1,4 +1,5 @@
 class Comment < ApplicationRecord
   validates_presence_of :content, :email
+
   belongs_to :article
 end

app/models/user.rb

@@ -1,4 +1,6 @@
 class User < ApplicationRecord
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
+
+  has_many :articles
 end

app/views/articles/show.html.haml

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

db/migrate/20180319093819_add_user_ref_to_articles.rb

@@ -0,0 +1,5 @@
+class AddUserRefToArticles < ActiveRecord::Migration[5.2]
+  def change
+    add_reference :articles, :user, foreign_key: true
+  end
+end

db/schema.rb

@@ -10,16 +10,49 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2018_03_18_155404) do
+ActiveRecord::Schema.define(version: 2018_03_21_145002) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "active_admin_comments", force: :cascade do |t|
+    t.string "namespace"
+    t.text "body"
+    t.string "resource_type"
+    t.bigint "resource_id"
+    t.string "author_type"
+    t.bigint "author_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["author_type", "author_id"], name: "index_active_admin_comments_on_author_type_and_author_id"
+    t.index ["namespace"], name: "index_active_admin_comments_on_namespace"
+    t.index ["resource_type", "resource_id"], name: "index_active_admin_comments_on_resource_type_and_resource_id"
+  end
+
+  create_table "admin_users", force: :cascade do |t|
+    t.string "email", default: "", null: false
+    t.string "encrypted_password", default: "", null: false
+    t.string "reset_password_token"
+    t.datetime "reset_password_sent_at"
+    t.datetime "remember_created_at"
+    t.integer "sign_in_count", default: 0, null: false
+    t.datetime "current_sign_in_at"
+    t.datetime "last_sign_in_at"
+    t.inet "current_sign_in_ip"
+    t.inet "last_sign_in_ip"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["email"], name: "index_admin_users_on_email", unique: true
+    t.index ["reset_password_token"], name: "index_admin_users_on_reset_password_token", unique: true
+  end
+
   create_table "articles", force: :cascade do |t|
     t.string "title"
     t.text "content"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.bigint "user_id"
+    t.index ["user_id"], name: "index_articles_on_user_id"
   end
 
   create_table "comments", force: :cascade do |t|
@@ -49,5 +82,6 @@
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 
+  add_foreign_key "articles", "users"
   add_foreign_key "comments", "articles"
 end

features/article_author.feature

@@ -0,0 +1,19 @@
+Feature:
+  As a user
+  In order to know who's the author of an article
+  I should see the author's name in the article
+
+  Background:
+    Given I visit the Homepage
+    Given the following user exists
+      | email           | password    | password_confirmation |
+      | [email protected] | OsloOslo123 | OsloOslo123           |
+    And I am logged in as "[email protected]"
+
+  Scenario: Successfully create an article
+    When I click "New Article" link
+    Then I fill in "Title" with "A Whole New World"
+    And I fill in "Content" with "A new fantastic point of view"
+    And I click "Create Article" button
+    Then I should be on "A Whole New World" page
+    And I should see "[email protected]"

features/create_articles.feature

@@ -5,6 +5,10 @@ Feature: Create articles
 
   Background:
     Given I visit the Homepage
+    Given the following user exists
+      | email           | password    | password_confirmation |
+      | [email protected] | OsloOslo123 | OsloOslo123           |
+    And I am logged in as "[email protected]"
 
   Scenario: Successfully create an article
     When I click "New Article" link

features/support/warden.rb

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

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(:user)).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 { is_expected.to belong_to :user }
+  end
 end

spec/models/user_spec.rb

@@ -11,4 +11,8 @@
       expect(create(:user)).to be_valid
     end
   end
+
+  describe 'Associations' do
+    it { is_expected.to have_many :articles }
+  end
 end