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Fixed #35789 -- Improved the error message raised when the tag must be first in the template.

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This commit is contained in:
ekinertac 2024-10-06 15:29:35 +03:00 committed by Sarah Boyce
parent e970bb7ca7
commit 68cee15a8f
2 changed files with 21 additions and 3 deletions
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6
django/template/base.py
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@ -533,9 +533,13 @@ class Parser:
def extend_nodelist(self, nodelist, node, token):
# Check that non-text nodes don't appear before an extends tag.
if node.must_be_first and nodelist.contains_nontext:
if self.origin.template_name:
origin = repr(self.origin.template_name)
else:
origin = "the template"
raise self.error(
token,
"%r must be the first tag in the template." % node,
"{%% %s %%} must be the first tag in %s." % (token.contents, origin),
)
if not isinstance(node, TextNode):
nodelist.contains_nontext = True

18
tests/template_tests/test_extends.py
View File

@ -1,9 +1,9 @@
import os
from django.template import Context, Engine, TemplateDoesNotExist
from django.template import Context, Engine, TemplateDoesNotExist, TemplateSyntaxError
from django.test import SimpleTestCase
from .utils import ROOT
from .utils import ROOT, setup
RECURSIVE = os.path.join(ROOT, "recursive_templates")
@ -181,3 +181,17 @@ class ExtendsBehaviorTests(SimpleTestCase):
)
template = engine.get_template("base.html")
self.assertEqual(template.render(Context({})), "12AB")
@setup(
{"index.html": "{% block content %}B{% endblock %}{% extends 'base.html' %}"}
)
def test_extends_not_first_tag_in_extended_template(self):
msg = "{% extends 'base.html' %} must be the first tag in 'index.html'."
with self.assertRaisesMessage(TemplateSyntaxError, msg):
self.engine.get_template("index.html")
def test_extends_not_first_tag_in_extended_template_from_string(self):
template_string = "{% block content %}B{% endblock %}{% extends 'base.html' %}"
msg = "{% extends 'base.html' %} must be the first tag in the template."
with self.assertRaisesMessage(TemplateSyntaxError, msg):
Engine().from_string(template_string)