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Location: symposion_app/symposion/schedule/views.py

Patrick Altman
Update and rename README.md to README.rst
from django.core.exceptions import ObjectDoesNotExist
from django.http import Http404, HttpResponse
from django.shortcuts import render, get_object_or_404, redirect
from django.template import loader, Context

from django.contrib.auth.decorators import login_required

from symposion.schedule.forms import SlotEditForm
from symposion.schedule.models import Schedule, Day, Slot, Presentation
from symposion.schedule.timetable import TimeTable


def fetch_schedule(slug):
    qs = Schedule.objects.all()
    
    if slug is None:
        if qs.count() > 1:
            raise Http404()
        schedule = next(iter(qs), None)
        if schedule is None:
            raise Http404()
    else:
        schedule = get_object_or_404(qs, section__slug=slug)
    
    return schedule


def schedule_conference(request):
    
    schedules = Schedule.objects.filter(published=True, hidden=False)
    
    sections = []
    for schedule in schedules:
        days_qs = Day.objects.filter(schedule=schedule)
        days = [TimeTable(day) for day in days_qs]
        sections.append({
            "schedule": schedule,
            "days": days,
        })
    
    ctx = {
        "sections": sections,
    }
    return render(request, "schedule/schedule_conference.html", ctx)


def schedule_detail(request, slug=None):
    
    schedule = fetch_schedule(slug)
    if not schedule.published and not request.user.is_staff:
        raise Http404()
    
    days_qs = Day.objects.filter(schedule=schedule)
    days = [TimeTable(day) for day in days_qs]
    
    ctx = {
        "schedule": schedule,
        "days": days,
    }
    return render(request, "schedule/schedule_detail.html", ctx)


def schedule_list(request, slug=None):
    schedule = fetch_schedule(slug)
    
    presentations = Presentation.objects.filter(section=schedule.section)
    presentations = presentations.exclude(cancelled=True)
    
    ctx = {
        "schedule": schedule,
        "presentations": presentations,
    }
    return render(request, "schedule/schedule_list.html", ctx)


def schedule_list_csv(request, slug=None):
    schedule = fetch_schedule(slug)
    
    presentations = Presentation.objects.filter(section=schedule.section)
    presentations = presentations.exclude(cancelled=True).order_by("id")
    
    response = HttpResponse(mimetype="text/csv")
    if slug:
        file_slug = slug
    else:
        file_slug = "presentations"
    response["Content-Disposition"] = 'attachment; filename="%s.csv"' % file_slug
    
    response.write(loader.get_template("schedule/schedule_list.csv").render(Context({
        "presentations": presentations,
        
    })))
    return response


@login_required
def schedule_edit(request, slug=None):
    
    if not request.user.is_staff:
        raise Http404()
    
    schedule = fetch_schedule(slug)
    
    days_qs = Day.objects.filter(schedule=schedule)
    days = [TimeTable(day) for day in days_qs]
    ctx = {
        "schedule": schedule,
        "days": days,
    }
    return render(request, "schedule/schedule_edit.html", ctx)


@login_required
def schedule_slot_edit(request, slug, slot_pk):
    
    if not request.user.is_staff:
        raise Http404()
    
    slot = get_object_or_404(Slot, day__schedule__section__slug=slug, pk=slot_pk)
    
    if request.method == "POST":
        form = SlotEditForm(request.POST, slot=slot)
        if form.is_valid():
            save = False
            if "content_override" in form.cleaned_data:
                slot.content_override = form.cleaned_data["content_override"]
                save = True
            if "presentation" in form.cleaned_data:
                presentation = form.cleaned_data["presentation"]
                if presentation is None:
                    slot.unassign()
                else:
                    slot.assign(presentation)
            if save:
                slot.save()
        return redirect("schedule_edit", slug)
    else:
        form = SlotEditForm(slot=slot)
        ctx = {
            "slug": slug,
            "form": form,
            "slot": slot,
        }
        return render(request, "schedule/_slot_edit.html", ctx)


def schedule_presentation_detail(request, pk):
    
    presentation = get_object_or_404(Presentation, pk=pk)
    if presentation.slot:
        schedule = presentation.slot.day.schedule
    else:
        schedule = None
    
    ctx = {
        "presentation": presentation,
        "schedule": schedule,
    }
    return render(request, "schedule/presentation_detail.html", ctx)