Ticket #15252: 15252.1.diff

new file django/contrib/staticfiles/templatetags/staticfiles.py

@@ +1 @@
+from django import template
+from django.conf import settings
+from django.core.files.storage import get_storage_class
+
+register = template.Library()
+
+storage = get_storage_class(settings.STATICFILES_STORAGE)()
+
+
+@register.simple_tag
+def staticfiles_url(path):
+    """
+    A template tag that returns the URL to a file
+    using staticfiles' storage backend
+    """
+    if storage.exists(path):
+        return storage.url(path)
+    return ''

tests/regressiontests/staticfiles_tests/tests.py

@@ -7 +7 @@
 import tempfile
 from StringIO import StringIO
 
+from django.template import loader, Context
 from django.conf import settings
 from django.contrib.staticfiles import finders, storage
 from django.core.exceptions import ImproperlyConfigured
@@ -85 +86 @@
     def assertFileNotFound(self, filepath):
         self.assertRaises(IOError, self._get_file, filepath)
 
+    def assertTemplateRenders(self, template, result, **kwargs):
+        if isinstance(template, basestring):
+            template = loader.get_template_from_string(template)
+        self.assertEqual(template.render(Context(kwargs)), result)
+
 
 class BuildStaticTestCase(StaticFilesTestCase):
     """
@@ -432 +438 @@
 
     def test_non_tuple_raises_exception(self):
         self.assertRaises(ImproperlyConfigured, finders.FileSystemFinder)
+
+
+class TestTemplateTag(StaticFilesTestCase):
+
+    def test_template_tag(self):
+        self.assertTemplateRenders("""{% load staticfiles %}{% staticfiles_url "does/not/exist.png" %}""", "")
+        self.assertTemplateRenders("""{% load staticfiles %}{% staticfiles_url "test/storage.txt" %}""", "/static/test/storage.txt")