fixes #2166

app/models/api_key.rb

@@ -0,0 +1,10 @@
+class ApiKey < ActiveRecord::Base
+  belongs_to :user
+  validates_uniqueness_of :user_id
+  validates_uniqueness_of :key
+  attr_accessible :user_id, :key
+
+  def self.generate!(user)
+    create(:user_id => user.id, :key => SecureRandom.urlsafe_base64(32))
+  end
+end