73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
# Copyright (c) 2008 Mikeal Rogers
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# This file has been modified by edX.org
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"""
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Methods for creating RequestContext for using with Mako templates.
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"""
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from django.conf import settings
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from django.template import RequestContext
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from django.template.context import _builtin_context_processors
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from django.utils.module_loading import import_string
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from util.request import safe_get_host
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from crum import get_current_request
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import request_cache
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def get_template_context_processors():
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"""
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Returns the context processors defined in settings.TEMPLATES.
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"""
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context_processors = _builtin_context_processors
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context_processors += tuple(settings.DEFAULT_TEMPLATE_ENGINE['OPTIONS']['context_processors'])
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return tuple(import_string(path) for path in context_processors)
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def get_template_request_context(request=None):
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"""
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Returns the template processing context to use for the current request,
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or returns None if there is not a current request.
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"""
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if request is None:
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request = get_current_request()
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if request is None:
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return None
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request_cache_dict = request_cache.get_cache('edxmako')
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cache_key = "request_context"
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if cache_key in request_cache_dict:
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return request_cache_dict[cache_key]
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context = RequestContext(request)
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context['is_secure'] = request.is_secure()
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context['site'] = safe_get_host(request)
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# This used to happen when a RequestContext object was initialized but was
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# moved to a different part of the logic when template engines were introduced.
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# Since we are not using template engines we do this here.
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# https://github.com/django/django/commit/37505b6397058bcc3460f23d48a7de9641cd6ef0
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for processor in get_template_context_processors():
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context.update(processor(request))
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request_cache_dict[cache_key] = context
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return context
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