Refactoring Grape API methods into normal controllers & other things

app/models/account.rb

@@ -76,6 +76,10 @@ class Account < ActiveRecord::Base
     @avatar_remote_url = url
   end
 
+  def to_param
+    self.username
+  end
+
   before_create do
     if local?
       keypair = OpenSSL::PKey::RSA.new(Rails.env.test? ? 1024 : 2048)

app/models/user.rb

@@ -1,9 +1,4 @@
 class User < ActiveRecord::Base
   belongs_to :account, inverse_of: :user
-
   validates :account, presence: true
-
-  def timeline
-    StreamEntry.where(account_id: self.account.following, activity_type: 'Status').order('id desc')
-  end
 end