def export_areas():
compounddate = request.args.get('compounddate','')
if not compounddate:
abort(400)
month = compounddate[4:6]
year = compounddate[0:4]
start = datetime.date(int(year), int(month), 1)
start = datetime.datetime.combine(start, datetime.time())
end = datetime.date(int(year), int(month), calendar.monthrange(int(year), int(month))[1])
end = datetime.datetime.combine(end, datetime.time())
report = Report.find_by_period(start, end)
polygons = Cell.polygon_by_report(report)
return json.dumps(polygons)
