def setComplete(self, complete):
"""
The setting of the complete flag will automatically delete all
associated Pending periods; conversely clearing the flag will
restore all future opportunities to Pending.
"""
# if we haven't initilized yet, get out of town
if self.complete is None:
self.complete = complete
self.save()
return
# only make changes on *transitions* of state
if complete and not self.complete:
# False -> True: delete all pending
for p in self.pendingPeriods():
p.move_to_deleted_state()
elif not complete and self.complete:
# True -> False: resurrect all deleted
for p in self.deletedPeriods():
p.state = Period_State.get_state("P")
p.save()
self.complete = complete
self.save()
def get_prescheduled_times(start, end, project = None):
"""
Returns a list of binary tuples of the form (start, end) that
describe when this project cannot observe because other
projects already have scheduled telescope periods during
the time range specified by the start and end arguments.
NOTE: this is functionally identical to
Project.get_prescheduled_times, but uses a DB query to
improve performance; Project cannot do this becuase the query
causes circular references.
"""
def truncatePeriodRange(p, start, end):
"we don't care about periods outside of range"
s = max(p.start, start)
e = min(p.end(), end)
return (s, e)
# first query DB simply by the time range
minutes = timedelta2minutes(end - start)
ps1 = Period.get_periods(start, minutes)
# now filter out other stuff
pId = None
if project is not None:
pId = project.id
scheduled = Period_State.get_state('S')
times = [truncatePeriodRange(p, start, end) for p in ps1 \
if p.session.project.id != pId \
and p.state == scheduled \
and AnalogSet.overlaps((p.start, p.end()), (start, end))]
return sorted(AnalogSet.unions(times))
def getBlackedOutSchedulablePeriods(self, now):
"""
Of the future periods for this elective overlapping in the time
range that are not deleted or completed, which schedulable ones
have been blacked out? Returns a list of offending periods.
"""
state = Period_State.get_state('D')
ps = self.periods.exclude(state=state).order_by('start')
periods = list(ps)
if not periods:
return []
pranges = [(p.start, p.end(), p) for p in periods]
start = max(now, pranges[0][0])
_, _, _, brs = \
self.session.getBlackedOutSchedulableTime(start
, pranges[-1][1])
branges = [r for sublist in brs for r in sublist] # flatten lists
retval = []
for p in pranges:
for b in branges:
if p[0] < b[1] and b[0] < p[1]:
retval.append(p[2])
break
return retval
def getRange(self):
state = Period_State.get_state('D')
ps = self.periods.exclude(state=state).order_by('start')
periods = list(ps)
if periods:
return [periods[0].start, periods[-1].end()]
else:
return []
def getPeriodRange(self):
state = Period_State.get_state("D")
ps = self.period_set.exclude(state=state).order_by("start")
periods = list(ps)
if periods:
return [periods[0].start, periods[-1].end()]
else:
return []
def restore_electives(start, duration):
"""
Looks for any elective periods in the deleted state,
and brings them back to pending.
"""
for p in Period.get_periods(start
, duration
, ignore_deleted = False):
if p.isDeleted() and p.session.isElective():
p.state = Period_State.get_state("P")
p.save()
def setComplete(self, complete):
"""
When a window is set as not complete, the default period
comes back.
"""
remaining = self.timeRemaining()
if not complete and self.complete and \
remaining != 0 and self.default_period is not None:
self.default_period.duration = remaining
self.default_period.state = Period_State.get_state("P")
self.default_period.save()
self.complete = complete
self.save()
def periodDateRange(self):
"""
Returns the earliest & latest start times
of all its non-deleted periods
"""
deleted = Period_State.get_state('D')
try:
min = self.periods.exclude(state=deleted).order_by('start')[0].start
except IndexError:
min = None
try:
max = self.periods.exclude(state=deleted).order_by('-start')[0].start
except IndexError:
max = None
return (min, max)
def restore_windows(start, duration):
"""
Looks for any windowed periods in the deleted state,
and brings them back to pending if:
* a default period
* from a non-gauranteed window
"""
for p in Period.get_periods(start
, duration
, ignore_deleted = False):
if p.isDeleted() and p.session.isWindowed() and \
p.is_windowed_default() and not p.session.guaranteed():
p.state = Period_State.get_state("P")
p.save()
def periodsByState(self, s):
"get periods by their state, which is one of ['P', 'D', 'S']"
state = Period_State.get_state(s)
return self.periods.filter(state=state)
def nonDefaultPeriods(self):
deleted = Period_State.get_state('D')
return [p for p in self.periods.exclude(state=deleted).all() if p != self.default_period]
def hasPeriodsAfter(self, dt):
deleted = Period_State.get_state('D')
return self.periods.exclude(state=deleted).filter(start__gt=dt).exists()
def move_to_deleted_state(self):
"all in the name"
self.state = Period_State.get_state("D")
self.save()
