django перОл admin 2

from django.contrib import admin
from .models import University
from .models import olympiads, organizer, profile, year, ol_organizer, ol_number_int_list, ol_info

admin.site.register(University)
admin.site.register(olympiads)
admin.site.register(organizer)
admin.site.register(profile)
admin.site.register(year)
admin.site.register(ol_organizer)
admin.site.register(ol_number_int_list)
admin.site.register(ol_info)

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")


class organizerAdmin(admin.ModelAdmin):
    list_display = ("id", "name")
    list_display_links = ("name")
    list_filter = ("name")
    search_fields = ("name")



class profileAdmin(admin.ModelAdmin):
    list_display = ("id", "name")
    list_display_links = ("name")
    list_filter = ("name")
    search_fields = ("name")


class yearAdmin(admin.ModelAdmin):
    list_display = ("id", "num_of_year")
    list_display_links = ("name")
    list_filter = ("name")
    search_fields = ("name")


class ol_organizerAdmin(admin.ModelAdmin):
    list_display = ("id_year", "id_ol", "id_org")
    list_display_links = ("id_ol", "id_year")
    list_filter = ("id_ol", "id_year")
    search_fields = ("id_ol", "id_year")


class ol_number_int_listAdmin(admin.ModelAdmin):
    list_display = ("id_year", "id_ol", "number_in_list")
    list_display_links = ("id_ol", "id_year")
    list_filter = ("id_ol", "id_year")
    search_fields = ("id_ol", "id_year")


class ol_infoAdmin(admin.ModelAdmin):
    list_display = ("id_ol","id_year","id_subj","id_prof", "level"  )
    list_display_links = ("id_ol", "id_year")
    list_filter = ("id_ol", "id_year")
    search_fields = ("id_ol", "id_year")