Merge pull request #53 from erbunao/epic-create-update

Add epic creation and update

lib/tracker_api/endpoints/epic.rb

@@ -10,7 +10,21 @@ def initialize(client)
       def get(project_id, id, params={})
         data = client.get("/projects/#{project_id}/epics/#{id}", params: params).body
 
-        Resources::Epic.new({ project_id: project_id }.merge(data))
+        Resources::Epic.new({ client: client, project_id: project_id }.merge(data))
+      end
+
+      def create(project_id, params={})
+        data = client.post("/projects/#{project_id}/epics", params: params).body
+
+        Resources::Epic.new({ client: client }.merge(data))
+      end
+
+      def update(epic, params={})
+        raise ArgumentError, 'Valid epic required to update.' unless epic.instance_of?(Resources::Epic)
+
+        data = client.put("/projects/#{epic.project_id}/epics/#{epic.id}", params: params).body
+
+        epic.attributes = data
       end
     end
   end

lib/tracker_api/resources/epic.rb

@@ -3,6 +3,8 @@ module Resources
     class Epic
       include Shared::HasId
 
+      attribute :client
+
       attribute :comment_ids, Array[Integer]
       attribute :comments, Array[Comment]
       attribute :created_at, DateTime
@@ -16,6 +18,21 @@ class Epic
       attribute :project_id, Integer
       attribute :updated_at, DateTime
       attribute :url, String
+
+      class UpdateRepresenter < Representable::Decorator
+        include Representable::JSON
+
+        property :name
+        property :description
+        property :label, class: Label, decorator: Label::UpdateRepresenter, render_empty: true
+      end
+
+      # Save changes to an existing Epic.
+      def save
+        raise ArgumentError, 'Can not update an epic with an unknown project_id.' if project_id.nil?
+
+        Endpoints::Epic.new(client).update(self, UpdateRepresenter.new(self))
+      end
     end
   end
 end

lib/tracker_api/resources/project.rb

@@ -149,6 +149,22 @@ def create_story(params)
         Endpoints::Story.new(client).create(id, params)
       end
 
+      # Find a epic by id for the project.
+      #
+      # @param [Fixnum] epic_id id of epic to get
+      # @return [Epic] epic with given id
+      def epic(epic_id, params={})
+        Endpoints::Epic.new(client).get(id, epic_id, params)
+      end
+
+      # Create a new epic in the project.
+      #
+      # @param [Hash] params attributes to create the epic with
+      # @return [epic] newly created Epic
+      def create_epic(params)
+        Endpoints::Epic.new(client).create(id, params)
+      end
+
       # Add a new membership for the project.
       #
       # @param [Hash] params attributes to add a member; must have at least email or user_id