Showing full template hierarchy for debug toolbar

greenweb/settings/development.py

@@ -13,6 +13,22 @@
 
 INSTALLED_APPS.insert(0, "whitenoise.runserver_nostatic")  # noqa
 
+# this snippet allows us to see the hierarchy of templates used to render a page
+# without it DEBUG_TOOLBAR runs out of "cache slots", and shows a message saying:
+
+# "Data for this panel isn't available anymore. Please reload the page and retry."
+
+# For more, see:
+# https://timonweb.com/django/fixing-the-data-for-this-panel-isnt-available-anymore-error-in-django-debug-toolbar/
+if DEBUG:
+    hide_toolbar_patterns = ["/media/", "/static/"]
+
+    DEBUG_TOOLBAR_CONFIG = {
+        "SHOW_TOOLBAR_CALLBACK": lambda request: not any(
+            request.path.startswith(p) for p in hide_toolbar_patterns
+        ),
+    }
+
 
 # Insert debug_toolbar middleware as first element
 # https://django-debug-toolbar.readthedocs.io/en/latest/installation.html#middleware