sharix-open-tickets/views/ticket_edit.py

import bleach
from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.shortcuts import redirect, get_object_or_404
from django.urls import reverse_lazy
from django.views import View

from tickets.forms import TicketForm
from tickets.models import Ticket
from tickets.utils import UserCanWriteTicketMixin


class TicketEditView(LoginRequiredMixin, UserCanWriteTicketMixin, View):
    def post(self, request, pk):
        ticket = get_object_or_404(Ticket, pk=pk)
        form = TicketForm(request.user, request.POST, instance=ticket)

        if form.is_valid():
            ticket = form.save(commit=False)
            ticket.note = bleach.clean(form.cleaned_data["note"], strip=True)
            ticket.save()

            messages.success(
                self.request,
                f'The "{ticket.title}" ticket has been successfully edited in {ticket.ticket_list.group} > {ticket.ticket_list}.'
            )
        else:
            messages.error(self.request, "Failed to edit the ticket.")

        return redirect(reverse_lazy('tickets:ticket_detail', kwargs={'pk': pk}))