added some docs to Request [ci skip]

app/models/request.rb

@@ -18,6 +18,9 @@ class Request
   validate :not_already_connected
   validate :not_friending_yourself
 
+  # Initalize variables
+  # @note we should be using ActiveModel::Serialization for this
+  # @return [Request]
   def self.diaspora_initialize(opts = {})
     req = self.new
     req.sender = opts[:from]
@@ -26,17 +29,14 @@ class Request
     req
   end
 
-  def reverse_for accepting_user
-    Request.diaspora_initialize(
-      :from => accepting_user.person,
-      :to => self.sender
-    )
-  end
-
+  # Alias of sender_handle
+  # @return [String]
   def diaspora_handle
     sender_handle
   end
 
+  # @note Used for XML marshalling
+  # @return [String]
   def sender_handle
     sender.diaspora_handle
   end
@@ -44,6 +44,8 @@ class Request
     self.sender = Person.where(:diaspora_handle => sender_handle).first
   end
 
+  # @note Used for XML marshalling
+  # @return [String]
   def recipient_handle
     recipient.diaspora_handle
   end
@@ -51,19 +53,28 @@ class Request
     self.recipient = Person.where(:diaspora_handle => recipient_handle).first
   end
 
+  # Defines the abstract interface used in sending a corresponding [Notification] given the [Request]
+  # @param user [User]
+  # @param person [Person]
+  # @return [Notifications::StartedSharing]
   def notification_type(user, person)
     Notifications::StartedSharing
   end
 
+  # Defines the abstract interface used in sending the [Request]
+  # @param user [User]
+  # @return [Array<Person>] The recipient of the request
   def subscribers(user)
     [self.recipient]
   end
 
+  # Finds or initializes a corresponding [Contact], and will set Contact#sharing to true
+  # @note A [Contact] may already exist if the [Request]'s recipient is sharing with the sender
+  # @return [Request]
   def receive(user, person)
     Rails.logger.info("event=receive payload_type=request sender=#{self.sender} to=#{self.recipient}")
 
     contact = user.contacts.find_or_initialize_by_person_id(self.sender.id)
-
     contact.sharing = true
     contact.save
 
@@ -72,12 +83,14 @@ class Request
 
   private
 
+  # Checks if a [Contact] does not already exist between the requesting [User] and receiving [Person]
   def not_already_connected
     if sender && recipient && Contact.where(:user_id => self.recipient.owner_id, :person_id => self.sender.id).exists?
       errors[:base] << 'You have already connected to this person'
     end
   end
 
+  # Checks to see that the requesting [User] is not sending a request to himself
   def not_friending_yourself
     if self.recipient == self.sender
       errors[:base] << 'You can not friend yourself'