Generated model Answer with migration

db/migrate/20140227235843_create_answers.rb

@@ -0,0 +1,10 @@
+class CreateAnswers < ActiveRecord::Migration
+  def change
+    create_table :answers do |t|
+      t.text :response
+      t.references :question, index: true
+
+      t.timestamps
+    end
+  end
+end