def metro_areas():
	try:
		c = get_db().cursor()
		try:
			unique_values = dao.get_unique_values(c, 'metro_areas', 'name')
			result = {'metro_areas': unique_values}
			response = jsonify(result)
			response.status_code = 200
			return response
		finally:
			c.close()
	except Exception as e:
		print e
		abort(500)
def get_unique_values(c, table, field):
	return dao.get_unique_values(c, table, field)