question builder

app/models/question.rb

@@ -0,0 +1,14 @@
+class Question < ActiveRecord::Base
+  attr_accessible :title, :global, :answers_attributes, :answer_ids, :question_type_id
+  
+  belongs_to :question_type
+  has_and_belongs_to_many :conferences
+  
+  has_many :qanswers, :dependent => :delete_all
+  has_many :answers, :through => :qanswers, :dependent => :delete_all
+  
+  validates :title, :presence => true
+  validates :answers, :presence => true
+  
+  accepts_nested_attributes_for :answers, :allow_destroy => true
+end