from django.contrib import admin from vbv_lernwelt.shop.models import CheckoutInformation @admin.action(description="Create invoice for selected checkouts") def generate_invoice(modeladmin, request, queryset): pass @admin.register(CheckoutInformation) class CheckoutInformationAdmin(admin.ModelAdmin): list_display = ( "product_sku", "user", "product_name", "product_price", "updated_at", "state", "invoice_transmitted_at", ) actions = [generate_invoice]