Speeding up with cache

src/ktools/django/jinja/templatetags.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from functools import lru_cache
 from typing import Any
 
 from django.forms.boundfield import BoundField
@@ -18,6 +19,13 @@ from ktools.django.jinja.backend import KtoolsJinjaBackend
 _k_jinja_backend: KtoolsJinjaBackend
 
 
+@lru_cache(maxsize=None)
+def _get_template(template_name: str) -> Template:
+    'Return (and cache) a `Template` to render.'
+    return _k_jinja_backend.get_template(
+        template_name=template_name)  # pyright: ignore[reportReturnType]
+
+
 @pass_context
 def ktools_render_messages(
     context: Context, request: HttpRequest, variant: str = 'bootstrap5-v1'
@@ -25,9 +33,8 @@ def ktools_render_messages(
     'Rendering a HTML message in various formats from ktools templates.'
     match variant:
         case 'bootstrap5-v1':
-            template = _k_jinja_backend.get_template(
-                template_name=(
-                    'ktools/render-content/messages-bootstrap5-v1.html.jinja'))
+            template = _get_template(template_name=(
+                'ktools/render-content/messages-bootstrap5-v1.html.jinja'))
             return template.render(context=context, request=request)
         case _:
             raise TemplateNotFound(
@@ -80,14 +87,10 @@ class KTemplatesSetting(BaseRenderer):
         Add the `_KBoundField` back to the context so that the template
         can use it.
         """
-        template = self.get_template(template_name)
+        template = _get_template(template_name=template_name)
         context['_k_boundfield'] = self._k_boundfield
         return template.render(context=context, request=request).strip()
 
-    def get_template(self, template_name: str) -> Template:
-        'Find our templates faster.'
-        return _k_jinja_backend.get_template(template_name=template_name)
-
 
 class _KBoundField(BoundField):