django calendar free/busy/availabilitty
What about using Django's range test.
For example:
appoinment = Appointment()
appointment.start_time = datetime.datetime.now()
# 1 hour appointment
appointment.end_time = appointment.start_time + datetime.timedelta(hours=1)
# more stuff here
appointment.save()
# Checking for collision
# where the start time for an appointment is between the the start and end times
# You would want to filter this on user, etc
# There is also a problem if you book an appointment within another appointment
start_conflict = Appointment.objects.filter(
start_time__range=(appointment.start_time,
appointment.end_time))
end_conflict = Appointment.objects.filter(
end_time__range=(appointment.start_time,
appointment.end_time))
during_conflict = Appointment.objects.filter(
start_date__lte=appointment.start_time,
end_date__gte=appointment.end_time)
if (start_conflict or end_conflict or during_conflict):
# reject, for there is a conflict
Something like that? I haven't tried this myself so you may have to tweak it a bit.
EDIT: Added the during_conflict
bit.