Make HTMX integration more flexible

src/servala/frontend/forms/mixins.py

@@ -1,3 +1,5 @@
+from django.utils.functional import cached_property
+
 from servala.frontend.forms.renderers import InlineFormRenderer
 
 
@@ -7,8 +9,6 @@ class HtmxMixin:
     Useful when sending single fields with htmx.
     """
 
-    default_renderer = InlineFormRenderer
-
     def __init__(self, *args, **kwargs):
         self.single_field = kwargs.pop("single_field", None)
 
@@ -18,3 +18,8 @@ class HtmxMixin:
             field = self.fields[self.single_field]
             self.fields.clear()
             self.fields[self.single_field] = field
+
+    @cached_property
+    def default_renderer(self):
+        if self.single_field:
+            return InlineFormRenderer

src/servala/frontend/templates/frontend/profile.html

@@ -15,7 +15,7 @@
 <td>
     {{ request.user.email }}
     <button class="btn btn-primary"
-            hx-get="{% url 'frontend:profile' %}?fragment=user-email-edit"
+            hx-get="{% url 'frontend:profile' %}?fragment=user-email-edit&hx-single-field=email"
             hx-target="closest td"
             hx-swap="outerHTML">{% translate "Edit" %}</button>
 </td>
@@ -24,7 +24,7 @@
 <td>
     {{ request.user.company|default:"–" }}
     <button class="btn btn-primary"
-            hx-get="{% url 'frontend:profile' %}?fragment=user-company-edit"
+            hx-get="{% url 'frontend:profile' %}?fragment=user-company-edit&hx-single-field=company"
             hx-target="closest td"
             hx-swap="outerHTML">{% translate "Edit" %}</button>
 </td>

src/servala/frontend/views/mixins.py

@@ -25,8 +25,11 @@ class HtmxMixin(TemplateView):
 
     def get_form_kwargs(self):
         result = super().get_form_kwargs()
-        if self.is_htmx and (field_name := self.request.POST.get("hx-single-field")):
-            result["single_field"] = field_name
+        if self.is_htmx:
+            data = (
+                self.request.POST if self.request.method == "POST" else self.request.GET
+            )
+            result["single_field"] = data.get("hx-single-field")
         return result
 
     def form_valid(self, form):