def expand(self, start, range, items, float_offset=0):
# Need to return whether the limit was applied or not
limited = False
# Now create list of items to include
include = []
# Always include the initial DTSTART if within the range
if range.isDateWithinPeriod(start):
include.append(start)
else:
limited = True
# RRULES
for iter in self.mRrules:
if iter.expand(start, range, include, float_offset=float_offset):
limited = True
# RDATES
for iter in self.mRdates:
if range.isDateWithinPeriod(iter):
include.append(iter)
else:
limited = True
for iter in self.mRperiods:
if range.isPeriodOverlap(iter):
include.append(iter.getStart())
else:
limited = True
# Make sure the list is unique
include = [x for x in set(include)]
include.sort(key=lambda x: x.getPosixTime())
# Now create list of items to exclude
exclude = []
# EXRULES
for iter in self.mExrules:
iter.expand(start, range, exclude, float_offset=float_offset)
# EXDATES
for iter in self.mExdates:
if range.isDateWithinPeriod(iter):
exclude.append(iter)
for iter in self.mExperiods:
if range.isPeriodOverlap(iter):
exclude.append(iter.getStart())
# Make sure the list is unique
exclude = [x for x in set(exclude)]
exclude.sort(key=lambda x: x.getPosixTime())
# Add difference between to the two sets (include - exclude) to the
# results
items.extend(set_difference(include, exclude))
return limited
def expand(self, start, range, items, float_offset=0, maxInstances=None):
# Need to return whether the limit was applied or not
limited = False
# Now create list of items to include
include = []
# Always include the initial DTSTART if within the range
if range.isDateWithinPeriod(start):
include.append(start)
else:
limited = True
# RRULES
for iter in self.mRrules:
if iter.expand(start, range, include, float_offset=float_offset, maxInstances=maxInstances):
limited = True
# RDATES
for iter in self.mRdates:
if range.isDateWithinPeriod(iter):
include.append(iter)
if maxInstances and len(include) > maxInstances:
raise TooManyInstancesError("Too many instances")
else:
limited = True
for iter in self.mRperiods:
if range.isPeriodOverlap(iter):
include.append(iter.getStart())
if maxInstances and len(include) > maxInstances:
raise TooManyInstancesError("Too many instances")
else:
limited = True
# Make sure the list is unique
include = [x for x in set(include)]
include.sort(key=lambda x: x.getPosixTime())
# Now create list of items to exclude
exclude = []
# EXRULES
for iter in self.mExrules:
iter.expand(start, range, exclude, float_offset=float_offset)
# EXDATES
for iter in self.mExdates:
if range.isDateWithinPeriod(iter):
exclude.append(iter)
for iter in self.mExperiods:
if range.isPeriodOverlap(iter):
exclude.append(iter.getStart())
# Make sure the list is unique
exclude = [x for x in set(exclude)]
exclude.sort(key=lambda x: x.getPosixTime())
# Add difference between to the two sets (include - exclude) to the
# results
items.extend(set_difference(include, exclude))
return limited
def expandPeriod(self, period, results):
# Check for recurrence and True master
if ((self.mRecurrences is not None)
and self.mRecurrences.hasRecurrence()
and not self.isRecurrenceInstance()):
# Expand recurrences within the range
items = []
self.mRecurrences.expand(self.mStart, period, items)
# Look for overridden recurrence items
cal = self.mParentComponent
if cal is not None:
# Remove recurrence instances from the list of items
recurs = []
cal.getRecurrenceInstancesIds(
definitions.cICalComponent_VEVENT, self.getUID(), recurs)
recurs.sort()
if len(recurs) != 0:
temp = []
temp = set_difference(items, recurs)
items = temp
# Now get actual instances
instances = []
cal.getRecurrenceInstancesItems(
definitions.cICalComponent_VEVENT, self.getUID(),
instances)
# Get list of each ones with RANGE
prior = []
future = []
for iter in instances:
if iter.isAdjustPrior():
prior.append(iter)
if iter.isAdjustFuture():
future.append(iter)
# Check for special behaviour
if len(prior) + len(future) == 0:
# Add each expanded item
for iter in items:
results.append(self.createExpanded(self, iter))
else:
# Sort each list first
prior.sort(self.sort_by_dtstart)
future.sort(self.sort_by_dtstart)
# Add each expanded item
for iter1 in items:
# Now step through each using the slave item
# instead of the master as appropriate
slave = None
# Find most appropriate THISANDPRIOR item
for i in range(len(prior) - 1, 0, -1):
riter2 = prior[i]
if riter2.getStart() > iter1:
slave = riter2
break
# Find most appropriate THISANDFUTURE item
for i in range(len(future) - 1, 0, -1):
riter2 = future.elementAt(i)
if riter2.getStart() < iter1:
slave = riter2
break
if slave is None:
slave = self
results.append(self.createExpanded(slave, iter1))
else:
# Add each expanded item
for iter in items:
results.append(self.createExpanded(self, iter))
elif self.withinPeriod(period):
if self.isRecurrenceInstance():
rid = self.mRecurrenceID
else:
rid = None
results.append(ComponentExpanded(self, rid))
def expandPeriod(self, period, results):
# Check for recurrence and True master
if ((self.mRecurrences is not None) and self.mRecurrences.hasRecurrence()
and not self.isRecurrenceInstance()):
# Expand recurrences within the range
items = []
self.mRecurrences.expand(self.mStart, period, items)
# Look for overridden recurrence items
cal = self.mParentComponent
if cal is not None:
# Remove recurrence instances from the list of items
recurs = []
cal.getRecurrenceInstancesIds(definitions.cICalComponent_VEVENT, self.getUID(), recurs)
recurs.sort()
if len(recurs) != 0:
temp = []
temp = set_difference(items, recurs)
items = temp
# Now get actual instances
instances = []
cal.getRecurrenceInstancesItems(definitions.cICalComponent_VEVENT, self.getUID(), instances)
# Get list of each ones with RANGE
prior = []
future = []
for iter in instances:
if iter.isAdjustPrior():
prior.append(iter)
if iter.isAdjustFuture():
future.append(iter)
# Check for special behaviour
if len(prior) + len(future) == 0:
# Add each expanded item
for iter in items:
results.append(self.createExpanded(self, iter))
else:
# Sort each list first
prior.sort(self.sort_by_dtstart)
future.sort(self.sort_by_dtstart)
# Add each expanded item
for iter1 in items:
# Now step through each using the slave item
# instead of the master as appropriate
slave = None
# Find most appropriate THISANDPRIOR item
for i in range(len(prior) - 1, 0, -1):
riter2 = prior[i]
if riter2.getStart() > iter1:
slave = riter2
break
# Find most appropriate THISANDFUTURE item
for i in range(len(future) - 1, 0, -1):
riter2 = future.elementAt(i)
if riter2.getStart() < iter1:
slave = riter2
break
if slave is None:
slave = self
results.append(self.createExpanded(slave, iter1))
else:
# Add each expanded item
for iter in items:
results.append(self.createExpanded(self, iter))
elif self.withinPeriod(period):
if self.isRecurrenceInstance():
rid = self.mRecurrenceID
else:
rid = None
results.append(ComponentExpanded(self, rid))
