admin: migrate overview data-target modals

passbook/admin/views/overview.py

@@ -2,14 +2,20 @@
 from typing import Union
 
 from django.conf import settings
+from django.contrib.messages.views import SuccessMessageMixin
 from django.core.cache import cache
 from django.db.models import Count
 from django.db.models.fields.json import KeyTextTransform
-from django.views.generic import TemplateView
+from django.http.request import HttpRequest
+from django.http.response import HttpResponse
+from django.urls import reverse_lazy
+from django.utils.translation import gettext as _
+from django.views.generic import FormView, TemplateView
 from packaging.version import LegacyVersion, Version, parse
 from structlog import get_logger
 
 from passbook import __version__
+from passbook.admin.forms.overview import FlowCacheClearForm, PolicyCacheClearForm
 from passbook.admin.mixins import AdminRequiredMixin
 from passbook.admin.tasks import VERSION_CACHE_KEY, update_latest_version
 from passbook.audit.models import Event, EventAction
@@ -24,18 +30,6 @@ class AdministrationOverviewView(AdminRequiredMixin, TemplateView):
 
     template_name = "administration/overview.html"
 
-    def post(self, *args, **kwargs):
-        """Handle post (clear cache from modal)"""
-        if "clear_policies" in self.request.POST:
-            keys = cache.keys("policy_*")
-            cache.delete_many(keys)
-            LOGGER.debug("Cleared Policy cache", keys=len(keys))
-        if "clear_flows" in self.request.POST:
-            keys = cache.keys("flow_*")
-            cache.delete_many(keys)
-            LOGGER.debug("Cleared flow cache", keys=len(keys))
-        return self.get(*args, **kwargs)
-
     def get_latest_version(self) -> Union[LegacyVersion, Version]:
         """Get latest version from cache"""
         version_in_cache = cache.get(VERSION_CACHE_KEY)
@@ -75,3 +69,35 @@ class AdministrationOverviewView(AdminRequiredMixin, TemplateView):
         kwargs["cached_policies"] = len(cache.keys("policy_*"))
         kwargs["cached_flows"] = len(cache.keys("flow_*"))
         return super().get_context_data(**kwargs)
+
+
+class PolicyCacheClearView(AdminRequiredMixin, SuccessMessageMixin, FormView):
+    """View to clear Policy cache"""
+
+    form_class = PolicyCacheClearForm
+
+    template_name = "generic/form_non_model.html"
+    success_url = reverse_lazy("passbook_admin:overview")
+    success_message = _("Successfully cleared Policy cache")
+
+    def post(self, request: HttpRequest, *args, **kwargs) -> HttpResponse:
+        keys = cache.keys("policy_*")
+        cache.delete_many(keys)
+        LOGGER.debug("Cleared Policy cache", keys=len(keys))
+        return super().post(request, *args, **kwargs)
+
+
+class FlowCacheClearView(AdminRequiredMixin, SuccessMessageMixin, FormView):
+    """View to clear Flow cache"""
+
+    form_class = FlowCacheClearForm
+
+    template_name = "generic/form_non_model.html"
+    success_url = reverse_lazy("passbook_admin:overview")
+    success_message = _("Successfully cleared Flow cache")
+
+    def post(self, request: HttpRequest, *args, **kwargs) -> HttpResponse:
+        keys = cache.keys("flow_*")
+        cache.delete_many(keys)
+        LOGGER.debug("Cleared flow cache", keys=len(keys))
+        return super().post(request, *args, **kwargs)