cmsmanage/rentals/admin.py

from django.contrib import admin

from .models import LockerBank, LockerRental, LockerUnit


class LockerUnitInline(admin.TabularInline):
    model = LockerUnit
    extra = 0


@admin.register(LockerBank)
class LockerBankAdmin(admin.ModelAdmin):
    inlines = [LockerUnitInline]
    prepopulated_fields = {"slug": ("name",)}


class LockerRentalInline(admin.TabularInline):
    model = LockerRental
    extra = 0


@admin.register(LockerUnit)
class LockerUnitAdmin(admin.ModelAdmin):
    inlines = [LockerRentalInline]


@admin.register(LockerRental)
class LockerRentalAdmin(admin.ModelAdmin):
    search_fields = ["user__username", "locker_unit__bank__name"]