def conditional_fetch(report_date, refetch=False):
daily_report = DailyReport.query.filter(
DailyReport.report_date == report_date).first()
if daily_report is None:
daily_report = DailyReport(report_date=report_date)
db.session.add(daily_report)
if daily_report.report_html is None or refetch:
try:
daily_report.report_html = fetch_daily_report(
report_date.strftime("%Y-%m-%d")).encode('utf-8')
daily_report.fetch_timestamp = datetime.utcnow()
except (URLError, ReportFetchError, ReportNotFoundError):
raise
db.session.commit()
return daily_report.report_html
