Implement service instance update

src/servala/frontend/templates/frontend/organizations/service_instance_update.html

@@ -0,0 +1,39 @@
+{% extends "frontend/base.html" %}
+{% load i18n %}
+{% load static %}
+{% load partials %}
+{% block html_title %}
+    {% block page_title %}
+        {% block title %}
+            {% blocktranslate with instance_name=instance.name organization_name=request.organization.name %}Update {{ instance_name }} in {{ organization_name }}{% endblocktranslate %}
+        {% endblock %}
+    {% endblock page_title %}
+{% endblock html_title %}
+{% partialdef service-form %}
+{% if form %}
+    <div class="card">
+        <div class="card-header d-flex align-items-center"></div>
+        <div class="card-body">
+            {% if form_error %}
+                <div class="alert alert-danger">
+                    {% translate "Oops! Something went wrong with the service form generation. Please try again later." %}
+                </div>
+            {% else %}
+                {% include "includes/tabbed_fieldset_form.html" with form=form %}
+            {% endif %}
+        </div>
+    </div>
+{% endif %}
+{% endpartialdef %}
+{% block content %}
+    <section class="section">
+        <div class="card">
+            {% if not form %}
+                <div class="alert alert-warning" role="alert">
+                    {% translate "Cannot update this service instance because its details could not be retrieved from the underlying system. It might have been deleted externally." %}
+                </div>
+            {% else %}
+                <div id="service-form">{% partial service-form %}</div>
+            {% endif %}
+        </section>
+    {% endblock %}

src/servala/frontend/views/service.py

@@ -17,7 +17,11 @@ from servala.frontend.forms.service import (
     ServiceFilterForm,
     ServiceInstanceFilterForm,
 )
-from servala.frontend.views.mixins import HtmxViewMixin, OrganizationViewMixin
+from servala.frontend.views.mixins import (
+    HtmxUpdateView,
+    HtmxViewMixin,
+    OrganizationViewMixin,
+)
 
 
 class ServiceListView(OrganizationViewMixin, ListView):
@@ -310,12 +314,43 @@ class ServiceInstanceDetailView(
 
         return fieldsets
 
-    def get_context_data(self, **kwargs):
-        """Return service instance for the current organization."""
-        context = super().get_context_data(**kwargs)
-        if self.object.spec:
-            context["spec_fieldsets"] = self.get_nested_spec()
-        return context
+
+class ServiceInstanceUpdateView(
+    ServiceInstanceMixin, OrganizationViewMixin, HtmxUpdateView
+):
+    template_name = "frontend/organizations/service_instance_update.html"
+    permission_type = "change"
+
+    def get_form_class(self):
+        return self.object.context.model_form_class
+
+    def get_form_kwargs(self):
+        kwargs = super().get_form_kwargs()
+        kwargs["instance"] = self.object.spec_object
+        return kwargs
+
+    def form_valid(self, form):
+        try:
+            spec_data = form.get_nested_data().get("spec")
+            self.object.update_spec(spec_data=spec_data, updated_by=self.request.user)
+            messages.success(
+                self.request,
+                _("Service instance '{name}' updated successfully.").format(
+                    name=self.object.name
+                ),
+            )
+            return redirect(self.object.urls.base)
+        except ValidationError as e:
+            messages.error(self.request, e.message or str(e))
+            return self.form_invalid(form)
+        except Exception as e:
+            messages.error(
+                self.request, _("Error updating instance: {error}").format(error=str(e))
+            )
+            return self.form_invalid(form)
+
+    def get_success_url(self):
+        return self.object.urls.base
 
 
 class ServiceInstanceListView(OrganizationViewMixin, ListView):
@@ -331,7 +366,12 @@ class ServiceInstanceListView(OrganizationViewMixin, ListView):
     def get_queryset(self):
         """Return all service instances for the current organization with filtering."""
         queryset = ServiceInstance.objects.filter(
-            organization=self.request.organization
+            organization=self.request.organization,
+            is_deleted=False,  # Exclude soft-deleted
+        ).select_related(
+            "context__service_offering__provider",
+            "context__control_plane",
+            "context__service_definition__service",
         )
         if self.filter_form.is_valid():
             queryset = self.filter_form.filter_queryset(queryset)