from django.contrib import admin from django.template.response import TemplateResponse from django.urls import path from django.conf.urls import url from uncloud_pay.views import BillViewSet from hardcopy import bytestring_to_pdf from django.core.files.temp import NamedTemporaryFile from django.http import FileResponse from django.template.loader import render_to_string from uncloud_pay.models import Bill, Order, BillRecord, BillingAddress class BillRecordInline(admin.TabularInline): model = Bill.bill_records.through class BillAdmin(admin.ModelAdmin): inlines = [ BillRecordInline ] # change_list_template = "uncloud_pay/change_list.html" def get_urls(self): info = "%s_%s" % (self.model._meta.app_label, self.model._meta.model_name) pat = lambda regex, fn: url(regex, self.admin_site.admin_view(fn), name='%s_%s' % (info, fn.__name__)) url_patterns = [ pat(r'^([0-9]+)/as_pdf/$', self.my_view), ] + super().get_urls() return url_patterns # def changelist_view(self, request, extra_context=None): # extra_context = extra_context or {} # print("view exec") # return super().changelist_view( # request, extra_context=extra_context, # ) def my_view(self, request, object_id): bill = self.get_object(request, object_id=object_id) print(bill) if bill is None: raise self._get_404_exception(object_id) output_file = NamedTemporaryFile() bill_html = render_to_string("bill.html.j2", {'bill': bill, 'bill_records': bill.bill_records.all() }) bytestring_to_pdf(bill_html.encode('utf-8'), output_file) response = FileResponse(output_file, content_type="application/pdf") response['Content-Disposition'] = f'filename="bill_{bill}.pdf"' return response # ... context = dict( # Include common variables for rendering the admin template. self.admin_site.each_context(request), # Anything else you want in the context... # key=value, ) #return TemplateResponse(request, "admin/change_list.html", context) admin.site.register(Bill, BillAdmin) admin.site.register(Order) admin.site.register(BillRecord) admin.site.register(BillingAddress)