Create CFP records for existing Conference records

db/migrate/20150524160616_create_call_for_participation_records.rb

@@ -0,0 +1,10 @@
+class Conference           < ActiveRecord::Base; end
+class CallForParticipation < ActiveRecord::Base; end
+
+class CreateCallForParticipationRecords < ActiveRecord::Migration
+  def change
+    Conference.all.each do |c|
+      CallForParticipation.create!(conference_id: c.id)
+    end
+  end
+end