django myAdmin перечОл

from django.contrib import admin
from .models import University
from .models import olympiads

admin.site.register(University)
admin.site.register(olympiads)

class UniversityAdmin(admin.ModelAdmin):
    list_display = ("id", "short_name", "country", "url")
    list_display_links = ("short_name",)
    list_filter = ("country",)
    search_fields = ("short_name", "country",)


class olympiadsAdmin(admin.ModelAdmin):
    list_display = ("name","url")
    list_display_links =  ("name")
    list_filter = ("name")
    search_fields =  ("name")