Merge branch 'modeling-users' into 'master'

Modeling users

See merge request !3

Gemfile

@@ -23,7 +23,7 @@ gem 'jbuilder', '~> 2.0'
 gem 'sdoc', '~> 0.4.0', group: :doc
 
 # Use ActiveModel has_secure_password
-# gem 'bcrypt', '~> 3.1.7'
+gem 'bcrypt', '~> 3.1.7'
 
 # Use Unicorn as the app server
 # gem 'unicorn'

Gemfile.lock

@@ -36,6 +36,7 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.4)
+    bcrypt (3.1.13)
     binding_of_caller (0.8.0)
       debug_inspector (>= 0.0.1)
     bootstrap-sass (2.3.2.0)
@@ -196,6 +197,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  bcrypt (~> 3.1.7)
   bootstrap-sass (= 2.3.2.0)
   byebug
   capybara (= 2.1.0)

app/models/user.rb

+class User < ActiveRecord::Base
+  validates :name, presence: true, length: { maximum: 50 }
+  VALID_EMAIL_REGEX = /[\w+\-.]+@[a-z\d*\-.]+\.[a-z]+/i
+  validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false }
+  validates :password, length: { minimum: 6 }
+  before_save { self.email = email.downcase }
+  has_secure_password
+end

app/views/users/new.html.erb

-<% provide(:title, 'Sign up') %>
-<h1>Sign up</h1>
+<h1>Users#new</h1>
 <p>Find me in app/views/users/new.html.erb</p>

config/database.yml

@@ -22,4 +22,6 @@ test:
 
 production:
   <<: *default
-  database: db/production.sqlite3
+  adapter: postgresql
+  encoding: unicode
+  url: <%= ENV['DATABASE_URL'] %>

config/routes.rb

 Rails.application.routes.draw do
+  get 'users/new'
+
   root to: 'static_pages#home'
   get '/home', to: 'static_pages#home'
   get '/help', to: 'static_pages#help'

db/migrate/20200626094341_create_users.rb

+class CreateUsers < ActiveRecord::Migration
+  def change
+    create_table :users do |t|
+      t.string :name
+      t.string :email
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20200630040652_add_index_to_users_email.rb

+class AddIndexToUsersEmail < ActiveRecord::Migration
+  def change
+    add_index :users, :email, unique: true
+  end
+end

db/migrate/20200630043304_add_password_digest_to_users.rb

+class AddPasswordDigestToUsers < ActiveRecord::Migration
+  def change
+    add_column :users, :password_digest, :string
+  end
+end

db/schema.rb

+# encoding: UTF-8
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your
+# database schema. If you need to create the application database on another
+# system, you should be using db:schema:load, not running all the migrations
+# from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 20200630043304) do
+
+  create_table "users", force: :cascade do |t|
+    t.string   "name"
+    t.string   "email"
+    t.datetime "created_at",      null: false
+    t.datetime "updated_at",      null: false
+    t.string   "password_digest"
+  end
+
+  add_index "users", ["email"], name: "index_users_on_email", unique: true
+
+end

spec/models/user_spec.rb

+require 'spec_helper'
+
+describe User do
+  before { @user = User.new(name: "Example User", email: "user@example.com", 
+    password: "foobar", password_confirmation: "foobar") }
+  
+  subject { @user }
+
+  it { should respond_to(:name) }
+  it { should respond_to(:email) }
+  it { should respond_to(:password_digest) }
+  it { should respond_to(:password) }
+  it { should respond_to(:password_confirmation) }
+  it { should respond_to(:authenticate) }
+
+  it { should be_valid }
+
+  describe "when name is not present" do
+    before { @user.name = " " }
+    it { should_not be_valid }
+  end
+
+  describe "when email is not present" do
+    before { @user.email = " " }
+    it { should_not be_valid }
+  end
+
+  describe "when name is so long" do
+    before { @user.name = "a" * 51 }
+    it { should_not be_valid }
+  end
+
+  describe "when email format is invalid" do
+    it "should be invalid" do
+      addresses = %w[user@foo,com user_at_foo.org example.user@foo. foo@bar_baz.com foo@bar+baz.com]
+      addresses.each do |invalid_address|
+        @user.email = invalid_address
+        expect(@user).not_to be_valid
+      end
+    end
+  end
+
+  describe "when email format is valid" do
+    it "should be valid" do
+      addresses = %w[user@foo.COM A_US-ER@f.b.org frst.lst@foo.jp a+b@baz.cn]
+      addresses.each do |valid_address|
+        @user.email = valid_address
+        expect(@user).to be_valid
+      end
+    end
+  end
+
+  describe "when email address is already taken" do
+    before do
+      user_with_same_email = @user.dup
+      user_with_same_email.email = @user.email.upcase
+      user_with_same_email.save
+    end
+
+    it { should_not be_valid }
+  end
+
+  describe "when password is not present" do
+    before do
+      @user = User.new(name: "Example User", email: "user@example.com",
+                       password: " ", password_confirmation: " ")
+    end
+    it { should_not be_valid }
+  end
+
+  describe "when password doesn't match confirmation" do
+    before { @user.password_confirmation = "mismatch" }
+    it { should_not be_valid }
+  end
+
+  describe "return value of authenticate method" do
+    before { @user.save }
+    let(:found_user) { User.find_by(email: @user.email) }
+  
+    describe "with valid password" do
+      it { should eq found_user.authenticate(@user.password) }
+    end
+  
+    describe "with invalid password" do
+      let(:user_for_invalid_password) { found_user.authenticate("invalid") }
+  
+      it { should_not eq user_for_invalid_password }
+      specify { expect(user_for_invalid_password).to be_false }
+    end
+  end
+
+  describe "with a password that's too short" do
+    before { @user.password = @user.password_confirmation = "a" * 5 }
+    it { should be_invalid }
+  end
+end