old_contents: from __future__ import unicode_literals
  from django.contrib import admin
  
  from symposion.schedule.models import (
      Schedule,
      Day,
      Room,
      SlotKind,
      Slot,
      SlotRoom,
      Presentation,
  )
  
  
  class DayInline(admin.StackedInline):
      model = Day
      extra = 2
  
  
  class SlotKindInline(admin.StackedInline):
      model = SlotKind
  
  
  class ScheduleAdmin(admin.ModelAdmin):
      model = Schedule
      inlines = [DayInline, SlotKindInline]
  
  
  class SlotRoomInline(admin.TabularInline):
      model = SlotRoom
      extra = 1
  
  
  class SlotAdmin(admin.ModelAdmin):
      list_filter = ("day", "kind")
      list_display = ("day", "start", "end", "kind", "content_override")
      inlines = [SlotRoomInline]
  
  
  class RoomAdmin(admin.ModelAdmin):
      list_display = ["name", "order", "schedule"]
      list_filter = ["schedule"]
      inlines = [SlotRoomInline]
  
  
  class PresentationAdmin(admin.ModelAdmin):
      model = Presentation
      list_filter = ("section", "cancelled", "slot")
  
  
  admin.site.register(Day)
  admin.site.register(SlotKind, list_display=["label", "schedule"])
  admin.site.register(SlotRoom, list_display=["slot", "room"])
  admin.site.register(Schedule, ScheduleAdmin)
  admin.site.register(Room, RoomAdmin)
  admin.site.register(Slot, SlotAdmin)
  admin.site.register(Presentation, PresentationAdmin)
  
new_contents: from __future__ import unicode_literals
  from django.contrib import admin
  
  from symposion.schedule.models import (
      Schedule,
      Day,
      Room,
      SlotKind,
      Slot,
      SlotRoom,
      Presentation,
  )
  
  
  class DayInline(admin.StackedInline):
      model = Day
      extra = 2
  
  
  class SlotKindInline(admin.StackedInline):
      model = SlotKind
  
  
  class ScheduleAdmin(admin.ModelAdmin):
      model = Schedule
      inlines = [DayInline, SlotKindInline]
  
  
  class SlotRoomInline(admin.TabularInline):
      model = SlotRoom
      extra = 1
  
  
  class SlotAdmin(admin.ModelAdmin):
      list_filter = ("day", "kind")
      list_display = ("day", "start", "end", "kind", "content_override")
      inlines = [SlotRoomInline]
  
  
  class RoomAdmin(admin.ModelAdmin):
      list_display = ["name", "order", "schedule"]
      list_filter = ["schedule"]
      inlines = [SlotRoomInline]
  
  
  class PresentationAdmin(admin.ModelAdmin):
      model = Presentation
      list_display = ("title", "speaker", "section", "slot")
      list_filter = ("section", "cancelled", "slot")
  
  
  admin.site.register(Day)
  admin.site.register(SlotKind, list_display=["label", "schedule"])
  admin.site.register(SlotRoom, list_display=["slot", "room"])
  admin.site.register(Schedule, ScheduleAdmin)
  admin.site.register(Room, RoomAdmin)
  admin.site.register(Slot, SlotAdmin)
  admin.site.register(Presentation, PresentationAdmin)
  
subject: Make Presentation admin list more usable.