feat: mixin for update forms

config/mixins.py

@@ -0,0 +1,66 @@
+from typing import Type
+
+from django import forms
+from django.db import models
+from django.shortcuts import render
+from django.views.generic import TemplateView
+
+
+class HTMXFormComponent(TemplateView):
+    form_class: Type[forms.ModelForm] = None
+    template_name: str = "components/default/form.html"
+    hx_trigger = ""
+    view_name = ""
+
+    def get_view_name(self):
+        return self.view_name
+
+    def get_form_class(self) -> Type[forms.ModelForm]:
+        return self.form_class
+
+    def get_form(self, initial=True):
+        instance = self.get_object()
+
+        if initial:
+            return self.form_class(initial=self.get_initial_values(instance), instance=instance)
+
+        return self.form_class(self.request.POST, instance=instance)
+
+    def get_object(self) -> models.Model:
+        raise NotImplementedError
+
+    def get_initial_values(self, instance):
+        return {}
+
+    def get_context_data(self, **kwargs):
+        form = self.get_form()
+
+        return {
+            "form": form,
+            "url": self.get_view_name(),
+        }
+
+    def post(self, request, *args, **kwargs):
+        form = self.get_form(initial=False)
+
+        if form.is_valid():
+            instance = form.save()
+
+            response = render(
+                request,
+                self.template_name,
+                {
+                    "form": form,
+                    "instance": instance,
+                },
+            )
+            response["HX-Trigger"] = self.hx_trigger
+            return response
+
+        return render(
+            request,
+            self.template_name,
+            {
+                "form": form,
+            },
+        )