Simple Tweet by Cynthia

Gemfile

@@ -16,12 +16,14 @@ gem 'ffaker'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.1.4'
-# Use sqlite3 as the database for Active Record
-gem 'sqlite3'
+
 # Use Puma as the app server
 gem 'puma', '~> 3.7'
 # Use SCSS for stylesheets
+gem 'bootstrap-sass', '~> 3.3.7'
 gem 'sass-rails', '~> 5.0'
+# For bootstrap
+gem 'jquery-rails'
 # Use Uglifier as compressor for JavaScript assets
 gem 'uglifier', '>= 1.3.0'
 # See https://github.com/rails/execjs#readme for more supported runtimes
@@ -51,6 +53,7 @@ group :development, :test do
   gem 'factory_bot_rails'
   gem 'shoulda-matchers', '~> 3.1'
   gem 'rails-controller-testing'
+  gem 'sqlite3'
 end
 
 group :development do
@@ -62,5 +65,9 @@ group :development do
   gem 'spring-watcher-listen', '~> 2.0.0'
 end
 
+group :production do
+  gem 'pg', '~> 0.20'
+end
+
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

@@ -41,11 +41,16 @@ GEM
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     arel (8.0.0)
+    autoprefixer-rails (9.0.0)
+      execjs
     bcrypt (3.1.11)
     bcrypt (3.1.11-java)
     bcrypt (3.1.11-x64-mingw32)
     bcrypt (3.1.11-x86-mingw32)
     bindex (0.5.0)
+    bootstrap-sass (3.3.7)
+      autoprefixer-rails (>= 5.2.1)
+      sass (>= 3.3.4)
     builder (3.2.3)
     byebug (10.0.0)
     capybara (2.17.0)
@@ -97,6 +102,10 @@ GEM
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
+    jquery-rails (4.3.3)
+      rails-dom-testing (>= 1, < 3)
+      railties (>= 4.2.0)
+      thor (>= 0.14, < 2.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -124,6 +133,9 @@ GEM
     nokogiri (1.8.1-x86-mingw32)
       mini_portile2 (~> 2.3.0)
     orm_adapter (0.5.0)
+    pg (0.21.0)
+    pg (0.21.0-x64-mingw32)
+    pg (0.21.0-x86-mingw32)
     public_suffix (3.0.1)
     puma (3.11.2)
     puma (3.11.2-java)
@@ -251,6 +263,7 @@ PLATFORMS
   x86-mswin32
 
 DEPENDENCIES
+  bootstrap-sass (~> 3.3.7)
   byebug
   capybara (~> 2.13)
   carrierwave
@@ -259,7 +272,9 @@ DEPENDENCIES
   factory_bot_rails
   ffaker
   jbuilder (~> 2.5)
+  jquery-rails
   listen (>= 3.0.5, < 3.2)
+  pg (~> 0.20)
   puma (~> 3.7)
   rails (~> 5.1.4)
   rails-controller-testing
@@ -276,4 +291,4 @@ DEPENDENCIES
   web-console (>= 3.3.0)
 
 BUNDLED WITH
-   1.16.1
+   1.16.3

app/assets/javascripts/application.js

@@ -10,6 +10,8 @@
 // Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
 // about supported directives.
 //
+//= require jquery
+//= require bootstrap-sprockets
 //= require rails-ujs
 //= require turbolinks
 //= require_tree .

app/assets/stylesheets/application.css → app/assets/stylesheets/application.scss

@@ -10,6 +10,7 @@
  * files in this directory. Styles in this file should be added after the last require_* statement.
  * It is generally better to create a new file per style scope.
  *
- *= require_tree .
- *= require_self
  */
+ @import 'bootstrap-sprockets';
+ @import 'bootstrap';
+ @import 'style';

app/assets/stylesheets/style.scss

@@ -0,0 +1,18 @@
+//攥寫自己的css.
+.tweet-item {
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  padding: 4px;
+  margin-bottom: 20px;
+
+}
+
+//edit page按鈕
+.update-btn {
+  float:right;
+}
+
+.avatar-image {
+  height: 100px;
+  width: auto;
+}

app/controllers/admin/base_controller.rb

@@ -1,3 +1,14 @@
 class Admin::BaseController < ApplicationController
+# 後台登入先確認user登入再確認身份為admin，authenticate_admin方法要另外定義
+before_action :authenticate_user!
+before_action :authenticate_admin
 
+private
+
+def authenticate_admin
+    unless current_user.admin? #admin?要另外在user model定義
+      flash[:alert] = "Not allow!"
+      redirect_to root_path
+    end
+  end
 end

app/controllers/admin/tweets_controller.rb

@@ -1,7 +1,15 @@
 class Admin::TweetsController < Admin::BaseController
+# 後台登入先確認user登入再確認身份為admin，authenticate_admin方法要另外定義
+before_action :authenticate_user!
+before_action :authenticate_admin
   def index
+    @tweets = Tweet.all.order(created_at: :desc) #管理者瀏覽所有tweet資料
   end
 
   def destroy
+    @tweets = Tweet.find(params[:id])
+    @tweets.destroy
+    redirect_to admin_root_path
+    flash[:alert] = "tweet was deleted"
   end
 end

app/controllers/admin/users_controller.rb

@@ -1,4 +1,8 @@
 class Admin::UsersController < Admin::BaseController
+ # 後台登入先確認user登入再確認身份為admin，authenticate_admin方法要另外定義
+before_action :authenticate_user!
+before_action :authenticate_admin 
   def index
+    @users =  User.order(tweets_count: :desc)
   end
 end

app/controllers/application_controller.rb

@@ -1,7 +1,25 @@
 class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
+  before_action :configure_permitted_parameters, if: :devise_controller?
 
   # 請參考 Devise 文件自訂表單後通過 Strong Parameters 的方法
   # https://github.com/plataformatec/devise#strong-parameters
   # 注意有 sign_up 和 account_update 兩種參數要處理
+
+   protected
+
+  def configure_permitted_parameters
+    devise_parameter_sanitizer.permit(:sign_up, keys: [:name])
+    devise_parameter_sanitizer.permit(:account_update, keys: [:name])
+  end
+
+  private
+
+  def authenticate_admin  
+    unless current_user.admin?
+      flash[:alert] = "Not allow"
+      redirect_to root_path
+    end
+  end
+
 end

app/controllers/followships_controller.rb

@@ -1,7 +1,18 @@
 class FollowshipsController < ApplicationController
   def create
+    @followship = current_user.followships.build(following_id: params[:following_id])
+    if @followship.save
+      flash[:notice] = "Successfully followed"
+      redirect_back(fallback_location: root_path)
+    else
+      flash[:alert] = @followship.errors.full_messages.to_sentence
+      redirect_back(fallback_location: root_path)
+    end
   end
-
   def destroy
+    @followship = current_user.followships.where(following_id: params[:id])
+    @followship.destroy_all
+    flash[:alert] = "Followship destroyed"
+    redirect_back(fallback_location: root_path)
   end
 end

app/controllers/replies_controller.rb

@@ -1,9 +1,24 @@
 class RepliesController < ApplicationController
 
   def index
+    @tweet = Tweet.find(params[:tweet_id])
+    @reply = Reply.new
+    @replies = @tweet.replies.order(created_at: :desc)
+    @user = @tweet.user
   end
 
   def create
+    @tweet = Tweet.find(params[:tweet_id])
+    @reply = @tweet.replies.build(reply_params)
+    @reply.user_id = current_user.id
+    @reply.save!
+    redirect_to tweet_replies_path(@tweet)
+  end
+
+  private
+
+  def reply_params
+    params.require(:reply).permit(:comment)
   end
 
 end

app/controllers/tweets_controller.rb

@@ -1,16 +1,44 @@
 class TweetsController < ApplicationController
-
+# 登入認證
+before_action :authenticate_user!
   def index
-    @users # 基於測試規格，必須講定變數名稱，請用此變數中存放關注人數 Top 10 的使用者資料
+    @tweets = Tweet.all.order(created_at: :desc)
+    @tweet = Tweet.new #在index建立tweet容器來建立短文
+    # 基於測試規格，必須講定變數名稱，請用此變數中存放關注人數 Top 10 的使用者資料
+    # 必須搭配counter_cache才年通過測試
+    @users = User.order(followers_count: :desc).limit(10)
+    # 以下也可以通過自動測試  
+    #@users = User.all.sort_by {|user| user.followers.size}.reverse.first(10)
   end
 
   def create
+    @tweet = current_user.tweets.build(tweet_params)
+    if @tweet.save
+      flash[:notice] = "Tweeted successfully"
+      redirect_to tweets_path
+    else
+      flash.now[:alert] = "Tweeted faield"
+      render :index
+    end
   end
 
   def like
+    @tweet = Tweet.find(params[:id])
+    @tweet.likes.create!(user: current_user)
+    redirect_back(fallback_location: tweets_path) #導回上一頁
   end
 
   def unlike
+    @tweet = Tweet.find(params[:id])
+    likes = Like.where(tweet: @tweet, user: current_user)
+    likes.destroy_all
+    redirect_to tweets_path
+  end
+
+  private
+
+  def tweet_params
+    params.require(:tweet).permit(:description)
   end
 
 end

app/controllers/users_controller.rb

@@ -1,24 +1,44 @@
 class UsersController < ApplicationController
-
+before_action :set_user, only: [:edit, :update, :followings, :followers, :likes, :tweets]
   def tweets
+    @user = User.find(params[:id])
+    @tweets = @user.tweets.includes(:user).order("tweets.created_at desc")
   end
-
+  
   def edit
+    unless @user == current_user
+      redirect_to tweets_user_path(@user)
+    end
   end
 
   def update
+    @user.update(user_params)
+    redirect_to edit_user_path(@user)
   end
 
   def followings
-    @followings # 基於測試規格，必須講定變數名稱
+    # For ordering on the attribute of an associated model you have to include it:
+    @followings = @user.followings.includes(:followships).order("followships.created_at desc") # 基於測試規格，必須講定變數名稱
   end
 
   def followers
-    @followers # 基於測試規格，必須講定變數名稱
+    @followers = @user.followers.includes(:followships).order("followships.created_at desc") # 基於測試規格，必須講定變數名稱
+    @user.followers_count
   end
 
   def likes
-    @likes # 基於測試規格，必須講定變數名稱
+    @likes = @user.liked_tweets.includes(:likes).order("likes.created_at desc")
+    # 基於測試規格，必須講定變數名稱
+  end
+
+  private
+
+  def set_user
+    @user = User.find(params[:id])
+  end
+
+  def user_params
+    params.require(:user).permit(:name, :avatar, :introduction)
   end
 
 end

app/models/followship.rb

@@ -1,4 +1,14 @@
 class Followship < ApplicationRecord
+  # 限制使用者只能追蹤另一個使用者一次
   validates :following_id, uniqueness: { scope: :user_id }
+  # 限制是否追蹤自己
+  validate :check_self_following
+  belongs_to :user
+  belongs_to :following, class_name:"User" ,counter_cache: :followers_count
 
+  def check_self_following
+    if user_id == following_id
+      errors[:following_id] <<  "Can's follow yourself"
+    end
+  end
 end

app/models/like.rb

@@ -1,2 +1,4 @@
 class Like < ApplicationRecord
+  belongs_to :user
+  belongs_to :tweet
 end

app/models/reply.rb

@@ -1,2 +1,4 @@
 class Reply < ApplicationRecord
+  belongs_to :user
+  belongs_to :tweet
 end

app/models/tweet.rb

@@ -1,4 +1,18 @@
 class Tweet < ApplicationRecord
   validates_length_of :description, maximum: 140
+# 建立user跟tweet的關聯，一個tweet只會有一個user
+  belongs_to :user, counter_cache: true
+# tweet限制字數及空白
+  validates :user_id, presence: true
+  validates :description, presence: true, length: {maximum: 140}
+# tweet有很多回覆，當tweet被刪除時，順便刪除回覆
+  has_many :replies, dependent: :destroy
 
+# 使用者可以喜歡很多評論
+  has_many :likes, dependent: :destroy
+  has_many :liked_users, through: :likes, source: :user
+
+  def is_liked?(user)
+    self.liked_users.include?(user)
+  end
 end