Create an administration interface for the Category model from the ideas app that extends treebeard.admin.TreeAdmin instead of admin.ModelAdmin, as follows:

# ideas/admin.py
from django.contrib import admin
from treebeard.admin import TreeAdmin


from .models import Category 


class CategoryAdmin(TreeAdmin):
    list_display = ("title", "created", "modified",)
    list_filter = ("created",)

 
admin.site.register(Category, CategoryAdmin)