Merge 8634fc8 into 99acf34

Gemfile

@@ -44,6 +44,10 @@ gem 'bcrypt', '~> 3.1.7'
 gem 'bootstrap-sass', '>= 3.3.5'
 gem 'sprockets-rails', '>= 2.3.3'
 
+# REST API framework.
+gem 'grape'
+gem 'grape-entity'
+
 group :production do
   # Use Unicorn as the app server
   gem 'unicorn'

Gemfile.lock

@@ -55,6 +55,10 @@ GEM
     autoprefixer-rails (6.1.0.1)
       execjs
       json
+    axiom-types (0.1.1)
+      descendants_tracker (~> 0.0.4)
+      ice_nine (~> 0.11.0)
+      thread_safe (~> 0.3, >= 0.3.1)
     bcrypt (3.1.10)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
@@ -66,6 +70,8 @@ GEM
       thor (~> 0.19)
     builder (3.2.2)
     byebug (8.0.1)
+    coercible (1.0.0)
+      descendants_tracker (~> 0.0.1)
     coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
@@ -82,6 +88,8 @@ GEM
     datetime_picker_rails (0.0.5)
       momentjs-rails (>= 2.8.1)
     debug_inspector (0.0.2)
+    descendants_tracker (0.0.4)
+      thread_safe (~> 0.3, >= 0.3.1)
     devise (3.5.2)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -92,6 +100,7 @@ GEM
     docile (1.1.5)
     domain_name (0.5.25)
       unf (>= 0.0.5, < 1.0.0)
+    equalizer (0.0.11)
     erubis (2.7.0)
     execjs (2.6.0)
     factory_girl (4.5.0)
@@ -105,10 +114,24 @@ GEM
       multipart-post (>= 1.2, < 3)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
+    grape (0.13.0)
+      activesupport
+      builder
+      hashie (>= 2.1.0)
+      multi_json (>= 1.3.2)
+      multi_xml (>= 0.5.2)
+      rack (>= 1.3.0)
+      rack-accept
+      rack-mount
+      virtus (>= 1.0.0)
+    grape-entity (0.4.8)
+      activesupport
+      multi_json (>= 1.3.2)
     hashie (3.4.3)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
     i18n (0.7.0)
+    ice_nine (0.11.1)
     inline_svg (0.6.1)
       activesupport (>= 4.0.4)
       loofah (>= 2.0)
@@ -199,6 +222,10 @@ GEM
     pg (0.18.3)
     powerpack (0.1.1)
     rack (1.6.4)
+    rack-accept (0.4.5)
+      rack (>= 0.4)
+    rack-mount (0.8.3)
+      rack (>= 1.0.0)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.3)
@@ -291,6 +318,11 @@ GEM
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)
+    virtus (1.0.5)
+      axiom-types (~> 0.1)
+      coercible (~> 1.0)
+      descendants_tracker (~> 0.0, >= 0.0.3)
+      equalizer (~> 0.0, >= 0.0.9)
     warden (1.2.3)
       rack (>= 1.0)
     web-console (2.2.1)
@@ -313,6 +345,8 @@ DEPENDENCIES
   devise
   factory_girl_rails
   faker
+  grape
+  grape-entity
   jbuilder (~> 2.0)
   jquery-rails
   omniauth

app/api/animal/api.rb

@@ -0,0 +1,59 @@
+module Animal
+  # Class with grape api for Animal project.
+  class API < Grape::API
+    version 'v1', using: :path
+    format :json
+
+    helpers do
+      def current_user
+        @current_user ||= User.authorize!(env)
+      end
+
+      def authenticate!
+        error!('401 Unauthorized', 401) unless current_user
+      end
+    end
+
+    http_basic do |username, password|
+      # verify user's password here
+      user = User.find_by email: username
+      user.valid_password? password if user
+    end
+
+    desc 'Pet index.', params: Entities::Pet.documentation
+    get '/pet' do
+      authenticate!
+      pets = Pet.all
+      present pets, with: Entities::Pet, type: :full
+    end
+
+    desc 'Create a pet.', params: Entities::Pet.documentation
+    params do
+      requires(
+        :all,
+        except: [:id, :email],
+        using: Entities::Pet.documentation.except(:id, :email)
+      )
+    end
+    post '/pet' do
+      authenticate!
+      Pet.transaction do
+        Pet.create_with_params! params, @current_user
+      end
+    end
+
+    desc 'Breed index.', params: Entities::Breed.documentation
+    get '/breed' do
+      authenticate!
+      breeds = Breed.all
+      present breeds, with: Entities::Breed, type: :full
+    end
+
+    desc 'Birth index.', params: Entities::Birth.documentation
+    get '/birth' do
+      authenticate!
+      births = Birth.all
+      present births, with: Entities::Birth, type: :full
+    end
+  end
+end

app/api/animal/entities.rb

@@ -0,0 +1,36 @@
+module Animal
+  # Entities for Animal API.
+  module Entities
+    # General Entity with id, and timestamps.
+    class Id < Grape::Entity
+      expose :id
+      expose :created_at
+      expose :updated_at
+    end
+
+    # General Entity plus name field.
+    class Named < Id
+      expose :name
+    end
+
+    # Pet entity (Pet and Birth model).
+    class Pet < Named
+      expose :email, as: :owner_email
+      expose :breed_id
+      expose :gender
+      expose :father_id
+      expose :mother_id
+    end
+
+    # Breed entity like Breed model.
+    class Breed < Named
+    end
+
+    # Birth entity like Birth model.
+    class Birth < Id
+      expose :child_id
+      expose :father_id
+      expose :mother_id
+    end
+  end
+end

app/controllers/pets_controller.rb

@@ -8,26 +8,12 @@ def new
   def create
     Pet.transaction do
       pet = create_pet
-      create_birth(pet)
       redirect_to action: 'show', id: pet.id
     end
   end
 
   def create_pet
-    Pet.create! do |p|
-      p.name = params[:name]
-      p.breed_id = params[:breed_id]
-      p.gender = params[:gender]
-      p.owner = current_user
-    end
-  end
-
-  def create_birth(pet)
-    Birth.create! do |b|
-      b.child = pet
-      b.mother_id = params[:mother_id]
-      b.father_id = params[:father_id]
-    end
+    Pet.create_with_params! params, current_user
   end
 
   def index

app/models/pet.rb

@@ -10,6 +10,8 @@ class Pet < ActiveRecord::Base
   validates :owner, presence: true
   validates :gender, presence: true
 
+  delegate :email, to: :owner
+
   def birth
     Birth.find_by child: self
   end
@@ -22,6 +24,14 @@ def mother
     birth.mother if birth && birth.mother
   end
 
+  def father_id
+    father.id if father
+  end
+
+  def mother_id
+    mother.id if mother
+  end
+
   def children
     if gender == 'male'
       births = Birth.where father: self
@@ -31,6 +41,25 @@ def children
     births.includes(:child).map(&:child)
   end
 
+  def self.create_with_params!(params, user)
+    pet = self.create! do |p|
+      p.name = params[:name]
+      p.breed_id = params[:breed_id]
+      p.gender = params[:gender]
+      p.owner = user
+    end
+    pet.create_birth_with_params! params
+    pet
+  end
+
+  def create_birth_with_params!(params)
+    Birth.create! do |b|
+      b.child = self
+      b.mother_id = params[:mother_id]
+      b.father_id = params[:father_id]
+    end
+  end
+
   def self.where_can_be_father
     where gender: 0
   end

app/models/user.rb

@@ -4,4 +4,8 @@ class User < ActiveRecord::Base
   # :confirmable, :lockable, :timeoutable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
+
+  def self.authorize!(env)
+    find_by email: env['REMOTE_USER']
+  end
 end

config/application.rb

@@ -6,7 +6,7 @@
 # you've limited to :test, :development, or :production.
 Bundler.require(*Rails.groups)
 
-module HelloAnimalsRails
+module AnimalsRails
   # Rails Application
   class Application < Rails::Application
     # Settings in config/environments/* take precedence over those
@@ -29,5 +29,9 @@ class Application < Rails::Application
 
     # Do not swallow errors in after_commit/after_rollback callbacks.
     config.active_record.raise_in_transactional_callbacks = true
+
+    # Add REST API to app.
+    config.paths.add 'app/api', glob: '**/*.rb'
+    config.autoload_paths += Dir["#{Rails.root}/app/api/*"]
   end
 end

config/initializers/session_store.rb

@@ -1,5 +1,5 @@
 # Be sure to restart your server when you modify this file.
 
 Rails.application.config.session_store(
-  :cookie_store, key: '_hello_animals_rails_session'
+  :cookie_store, key: '_animals_rails_session'
 )

config/routes.rb

@@ -11,6 +11,9 @@
   resources :pets
 
   devise_for :users
+
+  mount Animal::API => '/api'
+
   # The priority is based upon order of creation: first created -> highest
   # priority.
   # See how all your routes lay out with "rake routes".