def get_value(self, name, language=None):
if name in ('rrule_interval', 'rrule_byday', 'rrule_until'):
f_name, kk, param = name.partition('_')
property = self.metadata.get_property(f_name, language=language)
if property:
value = property.get_parameter(param)
if param == 'byday' and value is not None:
bydays = []
for v in value:
bydays.append(DaysOfWeek.get_name_by_shortname(v))
return bydays
return value
proxy = super(Event, self)
return proxy.get_value(name, language)
def get_dates(start, end, rrule):
dates = set()
days = range((end - start).days + 1)
f = lambda date: dates.update([ date + timedelta(x) for x in days ])
# Case 1: No recurrence rule
if not rrule or not rrule.value:
f(start)
return dates
# Case 2: Recurrence rule
rrule_name = rrule.value
rrule_interval = int(rrule.get_parameter('interval') or 1)
bydays = rrule.get_parameter('byday')
if bydays:
bydays = [ int(DaysOfWeek.get_name_by_shortname(v))
for v in bydays ]
until = rrule.get_parameter('until')
if until:
until += timedelta(1)
else:
until = max(start, date.today()) + MAX_DELTA
next_date = rrules[rrule_name]
while start < until:
interval = rrule_interval
if bydays:
# Check any day of byday parameter
for byday in bydays:
# Skip previous byday values
if start.isoweekday() > byday:
continue
# Go ahead to current byday value
while start.isoweekday() < byday:
start = next_day(start)
if start >= until:
break
# Add current day (== byday value)
f(start)
else:
f(start)
# Go to next date based on rrule value and interval
while interval > 0:
start = next_date(start)
interval -= 1
return dates
class RRule_Field(Select_Field):
"""Recurrence Rule
- byday allowed on value 'weekly' only
- default byday is MO,TU,WE,TH,FR,SA,SU
- interval not allowed on value 'daily'
- default interval is 1
Examples:
rrule;byday=MO,WE,FR;interval=1:weekly
rrule;interval=2:monthly
"""
datatype = RRule_Datatype
parameters_schema = {'interval': RRuleInterval_Datatype,
'byday': DaysOfWeek(multiple=True),
'until': RRuleUntil_Datatype}
widget = RRule_Widget
def set_value(self, resource, context, name, form):
if name in ('rrule_interval', 'rrule_byday', 'rrule_until', 'allday'):
return False
elif name == 'rrule':
value = form.get(name, None)
if value:
kw = {
'interval': form.get('rrule_interval', None),
'until': form.get('rrule_until', None)}
byday = form.get('rrule_byday', None)
if value == 'weekly' and byday:
kw['byday'] = [ DaysOfWeek.get_shortname(v)
for v in byday ]
resource.set_value(name, value, **kw)
return False
proxy = super(Event_Edit, self)
return proxy.set_value(resource, context, name, form)
