#27258: Context processors are not called when using RequestContext and Django
templates
---------------------------------+--------------------
Reporter: Andi Albrecht | Owner: nobody
Type: Bug | Status: new
Component: Template system | Version: 1.10
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
---------------------------------+--------------------
When using RequestContext with a Django template, the context_processors
are not called to populate the context.
Here's an simple examle (see also attached test_request_context.py):
{{{
#!python
>>> from django.template.backends.django import DjangoTemplates
>>> from django.test import RequestFactory
>>> from django.template import Template, RequestContext
>>>
>>> # a simlpe context_processor:
>>> def test_processor_name(request):
... return {'name': 'Hello World'}
>>>
>>> # Create a RequestContext
>>> request = RequestFactory().get('/')
>>> context = RequestContext(request, {}, [test_processor_name])
>>>
>>> # Base template (everything's fine)
>>> template = Template('{{ name }}')
>>> template.render(context)
<<< u'Hello World'
>>>
>>> # Django template :(
>>> engine = DjangoTemplates({
... 'DIRS': [],
... 'APP_DIRS': False,
... 'NAME': 'django',
... 'OPTIONS': {
... 'context_processors': [test_processor_name],
... },
... })
>>> template = engine.from_string('{{ name }}')
>>> template.render(context)
<<< u''
}}}
The reason seems to be, that the `render()` method of a Django template
(as opposed to the base template) calls `make_context` which wraps
`RequestContext` in another `Context` instance. But when rendering the
template the `bind_template` context manager only of the outermost
`Context` instance is called, hence the context of a `RequestContext`
instance is never populated by context_processors.
--
Ticket URL: <https://code.djangoproject.com/ticket/27258>
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