add migrating for dummy emails

db/migrate/20140927005000_add_dummy_for_missing_emails.rb

@@ -0,0 +1,7 @@
+class AddDummyForMissingEmails < ActiveRecord::Migration
+  def up
+    Enterprise.all.each do |enterprise|
+      enterprise.update_attributes({:email => "missing@example.com"}) if enterprise.read_attribute(:email).blank?  
+    end
+  end
+end