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from datetime import datetime, timedelta
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from dateutil import rrule
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from interval import IntervalSet, Interval
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from django.db import models
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from model_utils.managers import InheritanceManager
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from calebasse.agenda.conf import default
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from calebasse.exceptions import CalebasseException
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from calebasse import agenda
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__all__ = (
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'EventManager',
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'OccurrenceManager',
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)
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class EventManager(InheritanceManager):
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""" This class allows you to manage events, appointment, ...
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"""
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def _set_event(self, event, participants=[], description='', services=[],
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start_datetime=None, end_datetime=None, note=None, room=None, **rrule_params):
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""" Private method to configure an Event or an EventAct
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"""
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event.description = description
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event.participants = participants
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event.services = services
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event.room = room
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if note is not None:
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event.notes.create(note=note)
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start_datetime = start_datetime or datetime.now().replace(
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minute=0, second=0, microsecond=0
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)
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occurence_duration = default.DEFAULT_OCCURRENCE_DURATION
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end_datetime = end_datetime or start_datetime + occurence_duration
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event.add_occurrences(start_datetime, end_datetime, **rrule_params)
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event.save()
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return event
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def create_event(self, title, event_type, participants=[], description='',
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services=[], start_datetime=None, end_datetime=None, room=None, note=None,
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**rrule_params):
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"""
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Convenience function to create an ``Event``, optionally create an
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``EventType``, and associated ``Occurrence``s. ``Occurrence`` creation
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rules match those for ``Event.add_occurrences``.
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Args:
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event_type: can be either an ``EventType`` object or the label
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is either created or retrieved.
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participants: List of CalebasseUser
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start_datetime: will default to the current hour if ``None``
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end_datetime: will default to ``start_datetime`` plus
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default.DEFAULT_OCCURRENCE_DURATION hour if ``None``
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freq, count, rrule_params:
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follow the ``dateutils`` API (see http://labix.org/python-dateutil)
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Returns:
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Event object
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"""
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if isinstance(event_type, str):
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event_type, created = agenda.models.EventType.objects.get_or_create(
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label=event_type
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)
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event = self.create(title=title, event_type=event_type)
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return self._set_event(event, participants, services = services,
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start_datetime = start_datetime, end_datetime = end_datetime,
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room=room, **rrule_params)
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def create_holiday(self, start_date, end_date, peoples=[], services=[], motive=''):
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event_type, created = agenda.models.EventType.objects.get_or_create(
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label=u"Vacances"
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)
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event = self.create(title="Conge", event_type=event_type)
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start_datetime = datetime(start_date.year, start_date.month, start_date.day)
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end_datetime = datetime(end_date.year, end_date.month, end_date.day, 23, 59)
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return self._set_event(event, peoples, motive, services, start_datetime, end_datetime)
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class OccurrenceManager(models.Manager):
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def daily_occurrences(self, date=None, participants=None, services=None,
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event_type=None):
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'''
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Returns a queryset of for instances that have any overlap with a
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particular day.
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Args:
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date: may be either a datetime.datetime, datetime.date object, or
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``None``. If ``None``, default to the current day.
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participants: a list of CalebasseUser
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'''
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date = date or datetime.now()
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start = datetime(date.year, date.month, date.day)
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end = start.replace(hour=23, minute=59, second=59)
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qs = self.select_related('event').filter(
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models.Q(
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start_time__gte=start,
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start_time__lte=end,
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) |
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models.Q(
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end_time__gte=start,
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end_time__lte=end,
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) |
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models.Q(
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start_time__lt=start,
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end_time__gt=end,
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)
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)
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if participants:
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qs = qs.filter(event__participants__in=participants)
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if services:
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qs = qs.filter(event__services__in=services)
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if event_type:
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qs = qs.filter(event__event_type=event_type)
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return qs
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def daily_disponiblity(self, date, occurrences, participants):
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result = dict()
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quater = 0
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occurrences_set = {}
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for participant in participants:
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occurrences_set[participant.id] = IntervalSet((o.to_interval() for o in occurrences[participant.id]))
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start_datetime = datetime(date.year, date.month, date.day, 8, 0)
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end_datetime = datetime(date.year, date.month, date.day, 8, 15)
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while (start_datetime.hour <= 19):
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for participant in participants:
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if not result.has_key(start_datetime.hour):
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result[start_datetime.hour] = [0, 1, 2, 3]
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result[start_datetime.hour][0] = []
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result[start_datetime.hour][1] = []
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result[start_datetime.hour][2] = []
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result[start_datetime.hour][3] = []
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quater = 0
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interval = IntervalSet.between(start_datetime, end_datetime)
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delta = interval - occurrences_set[participant.id]
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if delta and delta[0].upper_bound == interval[0].upper_bound and \
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delta[0].lower_bound and interval[0].upper_bound :
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result[start_datetime.hour][quater].append({'id': participant.id, 'dispo': 'free'})
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else:
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result[start_datetime.hour][quater].append({'id': participant.id, 'dispo': 'busy'})
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quater += 1
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start_datetime += timedelta(minutes=15)
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end_datetime += timedelta(minutes=15)
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return result
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