ProFi/employees/admin.py

from django.contrib import admin
from .models import Position, Department, Employee


@admin.register(Position)
class PositionAdmin(admin.ModelAdmin):
    list_display = ('name',)
    search_fields = ('name',)


@admin.register(Department)
class DepartmentAdmin(admin.ModelAdmin):
    list_display = ('name',)
    search_fields = ('name',)


@admin.register(Employee)
class EmployeeAdmin(admin.ModelAdmin):
    list_display = ('full_name', 'position', 'department', 'account')
    list_filter = ('department', 'position')
    search_fields = (
        'account__first_name', 'account__last_name', 'account__middle_name',
        'account__phone', 'account__email', 'position__name', 'department__name'
    )
    autocomplete_fields = ('department', 'position', 'account')

    fieldsets = (
        ('Основная информация', {
            'fields': ('account', 'department', 'position')
        }),
    )

    @admin.display(description='ФИО')
    def full_name(self, obj):
        return str(obj)