First checkin

app/models/room.rb

@@ -0,0 +1,18 @@
+class Room < ActiveRecord::Base
+  attr_accessible :name, :size, :public
+
+  belongs_to :conference
+  has_many :events
+
+  before_create :generate_guid
+
+  private
+
+  def generate_guid
+    begin
+      guid = SecureRandom.urlsafe_base64
+    end while Person.where(:guid => guid).exists?
+    self.guid = guid
+  end
+
+end