WIP: first prototype of the JSON API.

* Tests not included, so I cannot prove that it works

Gemfile

@@ -50,4 +50,5 @@ gem 'acts_as_commentable_with_threading'
 gem 'prawn'
 gem 'prawn_rails'
 gem 'gravtastic'
+gem 'active_model_serializers'
 

Gemfile.lock

@@ -15,6 +15,8 @@ GEM
       rack-cache (~> 1.2)
       rack-test (~> 0.6.1)
       sprockets (~> 2.2.1)
+    active_model_serializers (0.8.1)
+      activemodel (>= 3.0)
     activemodel (3.2.11)
       activesupport (= 3.2.11)
       builder (~> 3.0.0)
@@ -213,6 +215,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  active_model_serializers
   acts_as_commentable_with_threading
   bcrypt-ruby (~> 3.0.0)
   bootstrap-sass

app/controllers/api/base_controller.rb

@@ -0,0 +1,3 @@
+class Api::BaseController < ActionController::Base
+  protect_from_forgery
+end

app/controllers/api/v1/conferences_controller.rb

@@ -0,0 +1,7 @@
+class Api::V1::ConferencesController < Api::BaseController
+  respond_to :json
+
+  def index
+    respond_with Conference.all
+  end
+end

app/serializers/conference_serializer.rb

@@ -0,0 +1,23 @@
+class ConferenceSerializer < ActiveModel::Serializer
+  attributes :guid, :name, :description, :year, :socialtag, :date_range#, :url, :revision
+
+  def name
+    object.short_title
+  end
+
+  def description
+    object.title
+  end
+
+  def year
+    object.start_date.try(:year)
+  end
+
+  def socialtag
+    object.social_tag
+  end
+
+  def date_range
+    object.date_range_string
+  end
+end

config/routes.rb

@@ -53,6 +53,13 @@ Osem::Application.routes.draw do
       delete "/register" => "ConferenceRegistration#unregister"
     end
   end
+
+  namespace :api, defaults: {format: 'json'} do
+    namespace :v1 do
+      resources :conferences, :only => :index
+    end
+  end
+
   match "/admin" => redirect("/admin/conference")
 
   root :to => "home#index"