models.py 文件源码

def timetable_entries_which_violate_constraints(self):
        start_date = self.start.date()
        entries_which_violate_constraints = []
        for constraint in self.constraints.all():
            constraint_start = timezone.make_aware(
                datetime.combine(start_date, constraint.start_time),
                timezone.get_current_timezone())
            constraint_end = timezone.make_aware(
                datetime.combine(start_date, constraint.end_time),
                timezone.get_current_timezone())
            participations = Participation.objects.filter(entry__meeting=self,
                user=constraint.user, ignored_for_optimization=False,
                entry__timetable_index__isnull=False)
            for participation in participations:
                start = participation.entry.start
                end = participation.entry.end
                if (constraint_start >= start and constraint_start < end) or \
                    (constraint_end > start and constraint_end <= end) or \
                    (constraint_start <= start and constraint_end >= end):
                    entries_which_violate_constraints.append(participation.entry)
        return entries_which_violate_constraints