def generate_dates(self, num_dates=20):
"""
Generate the first num_dates dates of the recurrence and return a list of datetimes
"""
assert num_dates > 0
self.pre_save_hooks()
dates = []
rule = self.get_rrule()
try:
d = rule[0]
# Convert to time zone
date_with_tz = fleming.attach_tz_if_none(d, self.time_zone)
date_in_utc = fleming.convert_to_tz(date_with_tz, pytz.utc, True)
dates.append(date_in_utc)
for x in range(0, num_dates):
d = rule.after(d)
if not d:
break
# Convert to time zone
date_with_tz = fleming.attach_tz_if_none(d, self.time_zone)
date_in_utc = fleming.convert_to_tz(date_with_tz, pytz.utc,
True)
dates.append(date_in_utc)
except Exception: # pragma: no cover
pass
return dates
def convert_to_utc(self, dt):
"""
Treats the datetime object as being in the timezone of self.timezone and then converts it to utc timezone.
:type dt: datetime
"""
# Add timezone info
dt = fleming.attach_tz_if_none(dt, self.time_zone)
# Convert to utc
dt = fleming.convert_to_tz(dt, pytz.utc, return_naive=True)
return dt