Solution to array and hashes clashes

	def fields_for_work_experience(work_experience, &block)
		prefix = work_experience.new_record? ? 'new' : 'existing'
		# uses the fields_for helper with a block that gives an extra option to the form fields preventing hash and array param clashes (also for date_selects) which
		# would otherwise cause a server error.
		fields_for("candidate[#{prefix}_work_experience_attributes][]", work_experience) { |wef| wef.with_options :index => "", &block }
	end