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from datetime import timedelta
from django.conf import settings
from django.shortcuts import redirect
from django.urls import reverse_lazy
from django.utils.datetime_safe import datetime
from django.views.generic import ListView, DetailView
from AKModel.models import AKSlot, Room, AKTrack
Benjamin Hättasch
committed
from AKModel.metaviews.admin import FilterByEventSlugMixin
class PlanIndexView(FilterByEventSlugMixin, ListView):
"""
Default plan view
Shows two lists of current and upcoming AKs and a graphical full plan below
"""
model = AKSlot
template_name = "AKPlan/plan_index.html"
context_object_name = "akslots"
ordering = "start"
def get_queryset(self):
# Ignore slots not scheduled yet
return super().get_queryset().filter(start__isnull=False).select_related('ak', 'room', 'ak__category')
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
context["event"] = self.event
current_timestamp = datetime.now().astimezone(self.event.timezone)
context["akslots_now"] = []
context["akslots_next"] = []
rooms = set()
buildings = set()
# Get list of current and next slots
for akslot in context["akslots"]:
# Construct a list of all rooms used by these slots on the fly
if akslot.room is not None:
rooms.add(akslot.room)
# Store buildings for hierarchical view
if akslot.room.location != '':
buildings.add(akslot.room.location)
# Recent AKs: Started but not ended yet
if akslot.start <= current_timestamp <= akslot.end:
context["akslots_now"].append(akslot)
# Next AKs: Not started yet, list will be filled in order until threshold is reached
elif akslot.start > current_timestamp:
if len(context["akslots_next"]) < settings.PLAN_MAX_NEXT_AKS:
context["akslots_next"].append(akslot)
# Sort list of rooms by title
context["rooms"] = sorted(rooms, key=lambda x: x.title)
if settings.PLAN_SHOW_HIERARCHY:
context["buildings"] = sorted(buildings)
context["tracks"] = self.event.aktrack_set.all()
return context
class PlanScreenView(PlanIndexView):
"""
Plan view optimized for screens and projectors
This again shows current and upcoming AKs as well as a graphical plan,
but no navigation elements and trys to use the available space as best as possible
such that no scrolling is needed.
The view contains a frontend functionality for auto-reload.
"""
template_name = "AKPlan/plan_wall.html"
def get(self, request, *args, **kwargs):
s = super().get(request, *args, **kwargs)
# Don't show wall when event is not active -> redirect to normal schedule
if not self.event.active or (self.event.plan_hidden and not request.user.is_staff):
return redirect(reverse_lazy("plan:plan_overview", kwargs={"event_slug": self.event.slug}))
return s
def get_queryset(self):
now = datetime.now().astimezone(self.event.timezone)
# Wall during event: Adjust, show only parts in the future
if self.event.start < now < self.event.end:
# Determine interesting range (some hours ago until some hours in the future as specified in the settings)
self.start = now - timedelta(hours=settings.PLAN_WALL_HOURS_RETROSPECT)
else:
self.start = self.event.start
self.end = self.event.end
# Restrict AK slots to relevant ones
# This will automatically filter all rooms not needed for the selected range in the orginal get_context method
akslots = super().get_queryset().filter(start__gt=self.start)
# Find the earliest hour AKs start and end (handle 00:00 as 24:00)
self.earliest_start_hour = 23
self.latest_end_hour = 1
for akslot in akslots.all():
start_hour = akslot.start.astimezone(self.event.timezone).hour
if start_hour < self.earliest_start_hour:
# Use hour - 1 to improve visibility of date change
self.earliest_start_hour = max(start_hour - 1, 0)
end_hour = akslot.end.astimezone(self.event.timezone).hour
# Special case: AK starts before but ends after midnight -- show until midnight
if end_hour < start_hour:
self.latest_end_hour = 24
elif end_hour > self.latest_end_hour:
# Always use hour + 1, since AK may end at :xy and not always at :00
self.latest_end_hour = min(end_hour + 1, 24)
return akslots
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
context["start"] = self.start
context["earliest_start_hour"] = self.earliest_start_hour
context["latest_end_hour"] = self.latest_end_hour
return context
class PlanRoomView(FilterByEventSlugMixin, DetailView):
"""
Plan view for a single room
"""
template_name = "AKPlan/plan_room.html"
model = Room
context_object_name = "room"
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
# Restrict AKSlot list to the given room
# while joining AK, room and category information to reduce the amount of necessary SQL queries
context["slots"] = AKSlot.objects.filter(room=context['room']).select_related('ak', 'ak__category', 'ak__track')
return context
class PlanTrackView(FilterByEventSlugMixin, DetailView):
"""
Plan view for a single track
"""
template_name = "AKPlan/plan_track.html"
model = AKTrack
context_object_name = "track"
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
# Restrict AKSlot list to given track
# while joining AK, room and category information to reduce the amount of necessary SQL queries
context["slots"] = AKSlot.objects.\
filter(event=self.event, ak__track=context['track']).\
select_related('ak', 'room', 'ak__category')