Fixed the edX middleware to lazily create request context for Mako templates, so that it is based on any changes made to the request object. Verified that with this fix the "Instructor" tab is correctly hidden when a staff member is viewing the course as a student.
63 lines
2.6 KiB
Python
63 lines
2.6 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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import edxmako
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from django.conf import settings
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from edxmako.middleware import get_template_request_context
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from edxmako.shortcuts import marketing_link
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from mako.template import Template as MakoTemplate
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DJANGO_VARIABLES = ['output_encoding', 'encoding_errors']
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# TODO: We should make this a Django Template subclass that simply has the MakoTemplate inside of it? (Intead of inheriting from MakoTemplate)
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class Template(MakoTemplate):
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"""
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This bridges the gap between a Mako template and a djano template. It can
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be rendered like it is a django template because the arguments are transformed
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in a way that MakoTemplate can understand.
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"""
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def __init__(self, *args, **kwargs):
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"""Overrides base __init__ to provide django variable overrides"""
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if not kwargs.get('no_django', False):
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overrides = {k: getattr(edxmako, k, None) for k in DJANGO_VARIABLES}
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overrides['lookup'] = edxmako.LOOKUP['main']
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kwargs.update(overrides)
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super(Template, self).__init__(*args, **kwargs)
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def render(self, context_instance):
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"""
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This takes a render call with a context (from Django) and translates
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it to a render call on the mako template.
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"""
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# collapse context_instance to a single dictionary for mako
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context_dictionary = {}
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# In various testing contexts, there might not be a current request context.
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request_context = get_template_request_context()
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if request_context:
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for item in request_context:
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context_dictionary.update(item)
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for item in context_instance:
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context_dictionary.update(item)
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context_dictionary['settings'] = settings
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context_dictionary['EDX_ROOT_URL'] = settings.EDX_ROOT_URL
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context_dictionary['django_context'] = context_instance
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context_dictionary['marketing_link'] = marketing_link
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return super(Template, self).render_unicode(**context_dictionary)
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