from django.contrib import admin
from mptt.admin import MPTTModelAdmin

from .models import Specialization


class SpecializationAdmin(MPTTModelAdmin):
    readonly_fields = ('pk', 'lft', 'rght', 'tree_id', 'level')
    list_display = ('pk', 'name', 'order')

    def get_queryset(self, request):
        qs = super(SpecializationAdmin, self).get_queryset(request)

        qs.order_by('order')
        return qs


admin.site.register(Specialization, SpecializationAdmin)