Apply some low-hanging query count reduction

froide_govplan/cms_plugins.py

@@ -5,8 +5,8 @@ from cms.plugin_pool import plugin_pool
 
 from .models import (
     PLUGIN_TEMPLATES,
-    GovernmentPlanSection,
     GovernmentPlansCMSPlugin,
+    GovernmentPlanSection,
     GovernmentPlanSectionsCMSPlugin,
 )
 
@@ -39,13 +39,15 @@ class GovernmentPlanSectionsPlugin(CMSPluginBase):
     def render(self, context, instance, placeholder):
         context = super().render(context, instance, placeholder)
 
-        if instance.government:
+        if instance.government_id:
             sections = GovernmentPlanSection.objects.filter(
-                government=instance.government
+                government_id=instance.government_id
             )
         else:
             sections = GovernmentPlanSection.objects.all()
 
+        sections = sections.select_related("government")
+
         context["sections"] = sections
 
         return context

froide_govplan/models.py

@@ -411,7 +411,7 @@ class GovernmentPlanSection(models.Model):
     def get_plans(self):
         return (
             GovernmentPlan.objects.filter(
-                categories__in=self.categories.all(), government=self.government
+                categories__in=self.categories.all(), government_id=self.government_id
             )
             .distinct()
             .order_by("title")
@@ -486,8 +486,8 @@ if CMSPlugin:
                 plans = GovernmentPlan.objects.all()
 
             filters = {}
-            if self.government:
-                filters["government"] = self.government
+            if self.government_id:
+                filters["government_id"] = self.government_id
 
             cat_list = self.categories.all().values_list("id", flat=True)
             if cat_list:

froide_govplan/views.py

@@ -27,7 +27,9 @@ class GovPlanSectionDetailView(GovernmentMixin, DetailView):
     template_name = "froide_govplan/section.html"
 
     def get_queryset(self):
-        return GovernmentPlanSection.objects.filter(government=self.government)
+        return GovernmentPlanSection.objects.filter(
+            government=self.government
+        ).select_related("government")
 
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)