Created work package representer & current_user helper method for API

Gemfile

@@ -190,6 +190,7 @@ end
 
 # API gems
 gem 'grape', '~> 0.7.0'
+gem 'roar',   '~> 0.12.6'
 
 # Use the commented pure ruby gems, if you have not the needed prerequisites on
 # board to compile the native ones.  Note, that their use is discouraged, since

Gemfile.lock

@@ -336,7 +336,13 @@ GEM
       json (~> 1.4)
     redcarpet (3.0.0)
     ref (1.0.5)
+    representable (1.8.1)
+      multi_json
+      nokogiri
+      uber
     request_store (1.0.5)
+    roar (0.12.6)
+      representable (>= 1.6.0)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
@@ -410,6 +416,7 @@ GEM
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.38)
+    uber (0.0.4)
     uglifier (2.1.1)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)
@@ -492,6 +499,7 @@ DEPENDENCIES
   rb-readline
   rdoc (>= 2.4.2)
   request_store
+  roar (~> 0.12.6)
   rspec (~> 2.14)
   rspec-example_disabler!
   rspec-rails (~> 2.14)

app/api/api.rb

@@ -1,7 +1,20 @@
 class API < Grape::API
+  use Rack::Session::Cookie
   content_type 'hal+json', 'application/hal+json'
   format 'hal+json'
 
+  helpers do
+      def current_user
+        return nil if env['rack.session'][:user_id].nil?
+        @current_user ||= User.find(env['rack.session'][:user_id])
+      end
+
+      def current_user=(user)
+        env['rack.session'][:user_id] = user.id unless user
+        @current_user = user
+      end
+    end
+
   get do
     "Entry point"
   end

app/api/work_packages/work_package_representer.rb

@@ -0,0 +1,53 @@
+require 'roar/decorator'
+require 'roar/representer/json'
+require 'roar/representer/json/hal'
+
+module WorkPackages
+  class WorkPackageRepresenter < Roar::Decorator
+    include Roar::Representer::JSON
+    include Roar::Representer::Feature::Hypermedia
+    include Roar::Representer::JSON::HAL
+
+    property :id
+    property :subject
+    property :description
+    property :type, getter: lambda { |arg| type.try(:name) }
+    property :due_date
+    property :category, getter: lambda { |arg| category.try(:name) }
+    property :status, getter: lambda { |arg| status.try(:name) }
+    property :priority, getter: lambda { |arg| priority.try(:name) }
+    property :fixed_version, getter: lambda { |arg| fixed_version.try(:name)  }
+    property :lock_version
+    property :done_ratio
+    property :estimated_hours
+    property :start_date
+    property :created_at
+    property :updated_at
+
+    link :self do
+      "/work_packages/#{represented.id}"
+    end
+
+    property :project, class: Project, embedded: true do
+      property :id
+    end
+
+    property :author, class: User, embedded: true do
+      property :mail
+    end
+
+    property :assigned_to, as: :assignee, class: User, embedded: true do
+      property :mail
+    end
+
+    property :responsible, class: User, embedded: true do
+      property :mail
+    end
+
+
+
+    # collection :children, class: WorkPackage, embedded: true do
+    #   property :subject
+    # end
+  end
+end

app/api/work_packages/work_packages.rb

@@ -3,18 +3,19 @@ module WorkPackages
 
     resources :work_packages do
       get do
-        WorkPackage.all
+        work_packages = WorkPackage.all
       end
 
-      get :id do
-        WorkPackage.find(params[:id])
+      get ':id' do
+        work_package = current_user.work_packages.find(params[:id])
+        WorkPackageRepresenter.new(work_package).to_json
       end
 
-      patch :id do
+      patch ':id' do
         "work package update"
       end
 
-      delete :id do
+      delete :':id' do
         "work package delete"
       end