Refs mixxorz#45 -- Passed request to components

slippers/template.py

@@ -1,6 +1,7 @@
 """
 Overrides for the Django Template system to allow finer control over template parsing.
 """
+
 import re
 
 from django.template.base import (

slippers/templatetags/slippers.py

@@ -120,9 +120,10 @@ def render(self, context):
             attributes = {**props}
 
         # Stage 2: Render template
-        raw_output = template.render(
-            Context({**attributes, "children": children}, autoescape=context.autoescape)
-        )
+        ctx_dict = {**attributes, "children": children}
+        if request := context.get("request"):
+            ctx_dict["request"] = request
+        raw_output = template.render(Context(ctx_dict, autoescape=context.autoescape))
 
         output_template_section = mark_safe(extract_template_parts(raw_output)[1])
 

tests/templates/components.yaml

@@ -6,3 +6,4 @@ components:
   special_attributes: "special_attributes.html"
   type_checking: "type_checking.html"
   component_code: "component_code.html"
+  movie: "movie.html"

tests/templates/movie.html

@@ -0,0 +1 @@
+<span>Movie: {{ title }} - Reviewer: {{ request.user.last_name }}</span>

tests/templates/tests/movie_detail.html

@@ -0,0 +1 @@
+{% movie title="Monsters" %}

tests/test_templatetags.py

@@ -1,8 +1,10 @@
 from unittest.mock import patch
 
 from django.conf import settings as django_settings
+from django.contrib.auth.models import User
 from django.template import Context, Template, TemplateSyntaxError
 from django.test import TestCase, override_settings
+from django.urls import reverse
 
 from typeguard import get_type_name
 
@@ -617,3 +619,14 @@ def test_with_variables(self):
         """
 
         self.assertHTMLEqual(expected, Template(template).render(context))
+
+
+class RequestPassingTest(TestCase):
+    def test_request_may_be_passed_to_component(self):
+        user = User.objects.create_user("_", last_name="Monocle")
+        self.client.force_login(user)
+        response = self.client.get(reverse("movie_detail"))
+        self.assertEqual(
+            response.content.decode().strip(),
+            "<span>Movie: Monsters - Reviewer: Monocle</span>",
+        )

tests/urls.py

@@ -1 +1,7 @@
-urlpatterns = []
+from django.urls import path
+
+from tests import views
+
+urlpatterns = [
+    path("movie-detail/", views.MovieDetail.as_view(), name="movie_detail"),
+]

tests/views.py

@@ -0,0 +1,5 @@
+from django.views.generic import TemplateView
+
+
+class MovieDetail(TemplateView):
+    template_name = "tests/movie_detail.html"