From b3cfa88bb9e009e6fb8431a3a2a4e348d898a21c Mon Sep 17 00:00:00 2001
From: Thibault Jouan <tj@a13.fr>
Date: Fri, 1 May 2015 20:06:20 +0000
Subject: [PATCH] Implement playlists/show in API

---
 app/controllers/api/playlists_controller.rb |  4 ++++
 app/views/api/playlists/show.rabl           |  4 ++++
 config/routes.rb                            |  2 +-
 spec/integration/api/playlists_spec.rb      | 10 ++++++++++
 4 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 app/views/api/playlists/show.rabl

diff --git a/app/controllers/api/playlists_controller.rb b/app/controllers/api/playlists_controller.rb
index b3a576a..4466bad 100644
--- a/app/controllers/api/playlists_controller.rb
+++ b/app/controllers/api/playlists_controller.rb
@@ -4,6 +4,10 @@ module API
       @playlists = Playlist.all
     end
 
+    def show
+      @playlist = Playlist.find(params[:id])
+    end
+
     def create
       @playlist = current_user.playlists.build playlist_params
       @playlist.save
diff --git a/app/views/api/playlists/show.rabl b/app/views/api/playlists/show.rabl
new file mode 100644
index 0000000..002dfce
--- /dev/null
+++ b/app/views/api/playlists/show.rabl
@@ -0,0 +1,4 @@
+object @playlist
+
+attribute :id
+attribute :name
diff --git a/config/routes.rb b/config/routes.rb
index 7e3922a..dd5ae1a 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -4,7 +4,7 @@ Rails.application.routes.draw do
   namespace :api do
     get '/ping', to: 'application#ping'
     match '*all', to: 'application#cor_preflight', via: :options
-    resources :playlists, only: %i[index create]
+    resources :playlists, only: %i[index show create]
     resources :sessions, only: :create
     resources :sounds, only: :show
     resources :tracks, only: :index
diff --git a/spec/integration/api/playlists_spec.rb b/spec/integration/api/playlists_spec.rb
index 9ef4ede..4251281 100644
--- a/spec/integration/api/playlists_spec.rb
+++ b/spec/integration/api/playlists_spec.rb
@@ -15,6 +15,16 @@ describe 'API playlists' do
     ]
   end
 
+  it 'shows a playlist' do
+    playlist = create :playlist
+    get api_playlist_path playlist, format: :json
+
+    expect(json).to match(
+      id:   playlist.id,
+      name: playlist.name
+    )
+  end
+
   it 'creates playlist' do
     playlist = attributes_for :playlist
     post api_playlists_path,