author | Sverre Rabbelier <srabbelier@gmail.com> |
Tue, 25 Nov 2008 23:16:32 +0000 | |
changeset 587 | 7504504209a3 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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""" |
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A set of request processors that return dictionaries to be merged into a |
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template context. Each function takes the request object as its only parameter |
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and returns a dictionary to add to the context. |
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|
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These are referenced from the setting TEMPLATE_CONTEXT_PROCESSORS and used by |
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RequestContext. |
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""" |
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|
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from django.conf import settings |
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|
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def auth(request): |
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""" |
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Returns context variables required by apps that use Django's authentication |
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system. |
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|
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If there is no 'user' attribute in the request, uses AnonymousUser (from |
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django.contrib.auth). |
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""" |
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if hasattr(request, 'user'): |
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user = request.user |
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else: |
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from django.contrib.auth.models import AnonymousUser |
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user = AnonymousUser() |
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return { |
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'user': user, |
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'messages': user.get_and_delete_messages(), |
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'perms': PermWrapper(user), |
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} |
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|
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def debug(request): |
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"Returns context variables helpful for debugging." |
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context_extras = {} |
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if settings.DEBUG and request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS: |
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context_extras['debug'] = True |
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from django.db import connection |
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context_extras['sql_queries'] = connection.queries |
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return context_extras |
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def i18n(request): |
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from django.utils import translation |
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context_extras = {} |
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context_extras['LANGUAGES'] = settings.LANGUAGES |
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context_extras['LANGUAGE_CODE'] = translation.get_language() |
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context_extras['LANGUAGE_BIDI'] = translation.get_language_bidi() |
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return context_extras |
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def media(request): |
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""" |
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Adds media-related context variables to the context. |
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""" |
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return {'MEDIA_URL': settings.MEDIA_URL} |
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def request(request): |
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return {'request': request} |
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# PermWrapper and PermLookupDict proxy the permissions system into objects that |
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# the template system can understand. |
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class PermLookupDict(object): |
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def __init__(self, user, module_name): |
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self.user, self.module_name = user, module_name |
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def __repr__(self): |
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return str(self.user.get_all_permissions()) |
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def __getitem__(self, perm_name): |
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return self.user.has_perm("%s.%s" % (self.module_name, perm_name)) |
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def __nonzero__(self): |
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return self.user.has_module_perms(self.module_name) |
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class PermWrapper(object): |
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def __init__(self, user): |
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self.user = user |
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def __getitem__(self, module_name): |
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return PermLookupDict(self.user, module_name) |
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|
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def __iter__(self): |
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# I am large, I contain multitudes. |
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raise TypeError("PermWrapper is not iterable.") |