old_contents: from django.contrib import admin
  
  from entries.models import *
  
  admin.site.register(Tournament)
  admin.site.register(Competition)
  admin.site.register(Session)
  admin.site.register(SessionRound)
  admin.site.register(CompetitionEntry)
  admin.site.register(SessionEntry)
  admin.site.register(TargetAllocation)
  
new_contents: from django.contrib import admin
  
  from entries.models import *
  
  
  class CompetitionEntryAdmin(admin.ModelAdmin):
      list_display = ('archer', 'club', 'competition')
      list_filter = ('competition', 'club')
  
  admin.site.register(Tournament)
  admin.site.register(Competition)
  admin.site.register(Session)
  admin.site.register(SessionRound)
  admin.site.register(CompetitionEntry, CompetitionEntryAdmin)
  admin.site.register(SessionEntry)
  admin.site.register(TargetAllocation)
  
subject: Add Competition entry admin.