create task

Gemfile

@@ -9,6 +9,8 @@ gem 'puma', '~> 3.11'
 gem 'bootsnap', '>= 1.1.0', require: false
 gem 'haml-rails', '~> 2.0'
 gem 'devise_invitable', '~> 2.0.0'
+gem 'fast_jsonapi'
+gem 'carrierwave', '~> 2.0'
 
 group :development, :test do
   gem 'pry-byebug'

Gemfile.lock

@@ -58,6 +58,13 @@ GEM
       msgpack (~> 1.0)
     builder (3.2.3)
     byebug (11.0.1)
+    carrierwave (2.0.1)
+      activemodel (>= 5.0.0)
+      activesupport (>= 5.0.0)
+      addressable (~> 2.6)
+      image_processing (~> 1.1)
+      mimemagic (>= 0.3.0)
+      mini_mime (>= 0.1.3)
     coderay (1.1.2)
     concurrent-ruby (1.1.5)
     crass (1.0.4)
@@ -79,6 +86,8 @@ GEM
     factory_bot_rails (5.0.2)
       factory_bot (~> 5.0.2)
       railties (>= 4.2.0)
+    fast_jsonapi (1.5)
+      activesupport (>= 4.2)
     ffi (1.11.1)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
@@ -98,6 +107,9 @@ GEM
       ruby_parser (~> 3.5)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
+    image_processing (1.9.3)
+      mini_magick (>= 4.9.5, < 5)
+      ruby-vips (>= 2.0.13, < 3)
     launchy (2.4.3)
       addressable (~> 2.3)
     letter_opener (1.7.0)
@@ -115,6 +127,7 @@ GEM
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
     mimemagic (0.3.3)
+    mini_magick (4.9.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -183,6 +196,8 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.2)
+    ruby-vips (2.0.15)
+      ffi (~> 1.9)
     ruby_dep (1.5.0)
     ruby_parser (3.13.1)
       sexp_processor (~> 4.9)
@@ -215,10 +230,12 @@ PLATFORMS
 
 DEPENDENCIES
   bootsnap (>= 1.1.0)
+  carrierwave (~> 2.0)
   database_cleaner
   devise_invitable (~> 2.0.0)
   factory_bot_rails
   faker!
+  fast_jsonapi
   haml-rails (~> 2.0)
   letter_opener
   listen (>= 3.0.5, < 3.2)

app/controllers/application_controller.rb

@@ -2,4 +2,23 @@
 
 class ApplicationController < ActionController::API
   before_action :authenticate_user!
+
+  def render_success(serializer)
+    render json: serializer.serialized_json, status: :ok
+  end
+
+  def render_errors(task)
+    render json: wrong_attribute(task.errors.full_messages), status: :unprocessable_entity
+  end
+
+  def wrong_attribute(errors)
+    {
+      "errors": [
+        {
+          "status": '422',
+          "detail": errors
+        }
+      ]
+    }
+  end
 end

app/controllers/tasks_controller.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+class TasksController < ApplicationController
+  # POST /tasks
+  def create
+    task = Task.new(task_params)
+
+    if task.save
+      render_success(TaskSerializer.new(task))
+    else
+      render_errors(task)
+    end
+  end
+
+  # PATCH /tasks/:id
+  def update
+    task = Task.find(params[:id])
+
+    if task.update_attributes(task_params)
+      render_success(TaskSerializer.new(task))
+    else
+      render_errors(task)
+    end
+  end
+
+  # DELETE /tasks/:id
+  def destroy
+    task = Task.find(params[:id])
+    task.destroy
+    render json: {}, status: :no_content
+  end
+
+  private
+
+  def task_params
+    params.permit(:title, :body, :difficulty, :theme_id, picture_attributes: %i[image id _destroy],
+                                                         user_tasks_attributes: %i[id task_id user_id _destroy])
+  end
+end

app/controllers/themes_controller.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class ThemesController < ApplicationController
+  # POST /themes
+  def create
+    theme = Theme.new(theme_params)
+    if theme.save
+      render_success(ThemeSerializer.new(theme))
+    else
+      render_errors(theme)
+    end
+  end
+
+  # PATCH /themes/:id
+  def update
+    theme = Theme.find(params[:id])
+    if theme.update_attributes(theme_params)
+      render_success(ThemeSerializer.new(theme))
+    else
+      render_errors(theme)
+    end
+  end
+
+  # DELETE /themes/:id
+  def destroy
+    theme = Theme.find(params[:id])
+    theme.destroy
+    render json: {}, status: :no_content
+  end
+
+  private
+
+  def theme_params
+    params.permit(:title)
+  end
+end

app/controllers/user_tasks_controller.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class UserTasksController < ApplicationController
+  # POST /user_tasks
+  def create
+    user_task = UserTask.new(user_tasks_params)
+
+    if user_task.save
+      render_success(UserTaskSerializer.new(user_task))
+    else
+      render_errors(user_task)
+    end
+  end
+
+  private
+
+  def user_tasks_params
+    params.permit(:user_id, :task_id)
+  end
+end

app/controllers/users_controller.rb

@@ -3,7 +3,7 @@
 class UsersController < ApplicationController
   # POST /users
   def create
-    User.invite!(email: '[email protected]', fullname: 'John Doe')
-    render json: { success: 'invite sent' }, status: :ok
+    user = User.invite!(email: '[email protected]', fullname: 'John Doe')
+    render_success(UserSerializer.new(user))
   end
 end

app/mailers/task_mailer.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class TaskMailer < ApplicationMailer
+  def create_task
+    email = User.find(params[:user]).email
+    @task = Task.find(params[:task]).title
+
+    mail(to: email, subject: 'Task created')
+  end
+end

app/models/picture.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class Picture < ApplicationRecord
+  belongs_to :task
+
+  mount_uploader :image, PictureUploader
+end

app/models/task.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class Task < ApplicationRecord
+  belongs_to :theme
+
+  has_one :picture, dependent: :destroy
+  has_many :user_tasks, dependent: :destroy
+  has_many :users, through: :user_tasks
+
+  validates :title, :body, :difficulty, presence: true
+  validates :difficulty, numericality: { only_integer: true, less_than_or_equal_to: 10 }
+
+  accepts_nested_attributes_for :picture
+  accepts_nested_attributes_for :user_tasks
+end

app/models/theme.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class Theme < ApplicationRecord
+  has_many :tasks, dependent: :destroy
+
+  validates :title, presence: true
+end

app/models/user.rb

@@ -4,6 +4,9 @@ class User < ApplicationRecord
   devise :database_authenticatable, :invitable,
          :recoverable, :rememberable, :validatable
 
+  has_many :user_tasks, dependent: :destroy
+  has_many :tasks, through: :user_tasks
+
   validates :email, :password, presence: true
   validates :email, uniqueness: true
   validates :password, length: { in: 8..20 }

app/models/user_task.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class UserTask < ApplicationRecord
+  belongs_to :user
+  belongs_to :task
+
+  after_commit :create_task
+
+  private
+
+  def create_task
+    TaskMailer.with(user: user_id, task: task_id).create_task.deliver_later
+  end
+end

app/serializers/task_serializer.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class TaskSerializer
+  include FastJsonapi::ObjectSerializer
+  attributes :title, :body, :difficulty, :theme_id
+end

app/serializers/theme_serializer.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class ThemeSerializer
+  include FastJsonapi::ObjectSerializer
+  attributes :title
+end

app/serializers/user_serializer.rb

@@ -0,0 +1,4 @@
+class UserSerializer
+  include FastJsonapi::ObjectSerializer
+  attributes :email, :fullname
+end

app/serializers/user_task_serializer.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class UserTaskSerializer
+  include FastJsonapi::ObjectSerializer
+  attributes :user_id, :task_id
+end

app/uploaders/picture_uploader.rb

@@ -0,0 +1,23 @@
+class PictureUploader < CarrierWave::Uploader::Base
+  include CarrierWave::MiniMagick
+
+  storage :file
+
+  def store_dir
+    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
+  end
+
+  # process scale: [200, 300]
+
+  # def scale(width, height)
+  #   # do something
+  # end
+
+  # version :thumb do
+  #   process resize_to_fit: [50, 50]
+  # end
+
+  def extension_whitelist
+    %w(jpg jpeg gif png)
+  end
+end

app/views/layouts/mailer.html.haml

@@ -0,0 +1,8 @@
+!!!
+%html
+  %head
+    %meta{:content => "text/html; charset=utf-8", "http-equiv" => "Content-Type"}/
+    :css
+      /* Email styles need to be inline */
+  %body
+    = yield

app/views/layouts/mailer.text.haml

@@ -0,0 +1 @@
+= yield

app/views/task_mailer/create_task.html.haml

@@ -0,0 +1 @@
+%p Task: #{@task} created

config/routes.rb

@@ -3,4 +3,7 @@
   root 'home#homepage'
 
   resources :users, only: :create
+  resources :themes
+  resources :tasks
+  resources :user_tasks, only: [:create, :destroy]
 end

db/migrate/20190908064945_create_users.rb

@@ -1,7 +1,7 @@
 class CreateUsers < ActiveRecord::Migration[5.2]
   def change
     create_table :users do |t|
-      t.string :fullname, null: false
+      t.string  :fullname, null: false
       t.boolean :mentor, default: true
     end
   end

db/migrate/20190910101032_create_themes.rb

@@ -0,0 +1,9 @@
+class CreateThemes < ActiveRecord::Migration[5.2]
+  def change
+    create_table :themes do |t|
+      t.string :title, null: false
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20190910101038_create_tasks.rb

@@ -0,0 +1,12 @@
+class CreateTasks < ActiveRecord::Migration[5.2]
+  def change
+    create_table :tasks do |t|
+      t.string  :title, null: false
+      t.text    :body, null: false
+      t.integer :difficulty, null: false
+      t.integer :theme_id, null: false, index: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20190910134404_create_user_tasks.rb

@@ -0,0 +1,8 @@
+class CreateUserTasks < ActiveRecord::Migration[5.2]
+  def change
+    create_table :user_tasks do |t|
+      t.belongs_to :user
+      t.belongs_to :task
+    end
+  end
+end