handle post custom attributes

ref #9

lib/fb_graph2/post.rb

@@ -7,7 +7,7 @@ module FbGraph2
     register_attributes(
       raw: [
         :caption, :description, :icon, :is_hidden, :link, :message, :name, :object_id, :picture,
-        :source, :story
+        :source, :status_type, :story, :type
       ],
       time: [:created_time, :updated_time],
       app: [:application],
@@ -16,13 +16,28 @@ module FbGraph2
       profiles: [:to, :with_tags],
       actions: [:actions],
       custom: [
-        :message_tags, :privacy, :properties, :shares, :status_type, :type
+        :message_tags, :privacy, :properties
       ]
     )
 
     def initialize(id, attributes = {})
       super
-      # TODO: handle custom attributes.
+      if attributes.include? :message_tags
+        self.message_tags = attributes[:message_tags].inject({}) do |message_tags, (key, values)|
+          _message_tags_ = values.collect do |value|
+            TaggedProfile.new value[:id], value
+          end
+          message_tags.merge! key => _message_tags_
+        end
+      end
+      if attributes.include? :privacy
+        self.privacy = Struct::Privacy.new attributes[:privacy]
+      end
+      if attributes.include? :properties
+        self.properties = attributes[:properties].collect do |property|
+          Struct::Property.new property
+        end
+      end
     end
   end
 end

lib/fb_graph2/struct/privacy.rb

@@ -0,0 +1,9 @@
+module FbGraph2
+  class Struct
+    class Privacy < Struct
+      register_attributes(
+        raw: [:description, :value, :friends, :allow, :deny]
+      )
+    end
+  end
+end

lib/fb_graph2/struct/property.rb

@@ -0,0 +1,9 @@
+module FbGraph2
+  class Struct
+    class Property < Struct
+      register_attributes(
+        raw: [:name, :text, :href]
+      )
+    end
+  end
+end

lib/fb_graph2/tagged_profile.rb

@@ -0,0 +1,26 @@
+module FbGraph2
+  class TaggedProfile < Node
+    register_attributes(
+      raw: [:id, :name, :type, :offset, :length],
+      custom: [:object]
+    )
+
+    def initialize(id, attributes = {})
+      super
+      self.object = klass.new self.id
+    end
+
+    def klass
+      klass = case self.type
+      when 'user'
+        User
+      when 'page'
+        Page
+      when 'group'
+        Group
+      when 'event'
+        Event
+      end
+    end
+  end
+end