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توضیحات

Before a Django TemplateResponse is rendered, modify the context data in-place with context-processor like functionality

ویژگی	مقدار
سیستم عامل	-
نام فایل	django-contextaware-processors-0.1.1
نام	django-contextaware-processors
نسخه کتابخانه	0.1.1
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Keryn Knight
ایمیل نویسنده	django-contextaware-processors@kerynknight.com
آدرس صفحه اصلی	https://www.github.com/kezabelle/django-contextaware-processors/
آدرس اینترنتی	https://pypi.org/project/django-contextaware-processors/
مجوز	BSD License

django-contextaware-processors ============================== :author: Keryn Knight :version: 0.1.1 .. |travis_stable| image:: https://travis-ci.org/kezabelle/django-contextaware-processors.svg?branch=0.1.1 :target: https://travis-ci.org/kezabelle/django-contextaware-processors .. |travis_master| image:: https://travis-ci.org/kezabelle/django-contextaware-processors.svg?branch=master :target: https://travis-ci.org/kezabelle/django-contextaware-processors ============== ====== Release Status ============== ====== stable (0.1.1) |travis_stable| master |travis_master| ============== ====== .. contents:: Sections :depth: 3 What it does ------------ Ever used `Django`_ and wished you could have a `context processor`_ which received the existing context, along with the request, so that it could do different things depending on the values the view provided? This does that, as long as you're using `TemplateResponse`_ objects and not ``render()`` or ``render_to_response()``. Installation ------------ You can use `pip`_ to install the ``0.1.1`` version from `PyPI`_:: pip install django-contextaware-processors==0.1.1 Or you can grab it from `GitHub`_ like this:: pip install -e git+https://github.com/kezabelle/django-contextaware-processors.git#egg=django-contextaware-processors Usage ----- Add a new ``CONTEXTAWARE_PROCESSORS`` setting to your project configuration. It should be an iterable of strings representing the dotted paths to your processors, just the same as the `Django`_ context processors are configured:: CONTEXTAWARE_PROCESSORS = ('path.to.my_processor', 'another_processor.lives.here') Processors are executed in the order in which they are declared, and update the original context data. The new context is given to subsequent processors, such that the last processor above (``another_processor.lives.here``) will see any changes made by ``path.to.my_processor``. Using the middleware ^^^^^^^^^^^^^^^^^^^^ In most cases, if you're using ``TemplateResponse`` objects (or any `Class Based View`_ which uses them for you), you want to use the provided middleware:: MIDDLEWARE_CLASSES = ( # ... 'contextaware_processors.middleware.ContextawareProcessors', # ... ) As this makes use of ``process_response(request, response)`` you probably want it somewhere near the bottom, so that it modifies the context on the way out as soon as possible. The middleware will automatically apply any processors defined in ``CONTEXTAWARE_PROCESSORS`` Using the TemplateResponse subclass ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ For custom situations, there is ``context_processors.response.ContextawareTemplateResponse`` class which exposes an ``add_context_callback(callback_function)`` which can be used to apply view-specific context modifiers, though why you'd need to is not immeidiately obvious to me ;) If the ``ContextawareProcessors`` middleware notices a ``ContextawareTemplateResponse`` it will add those defined in ``CONTEXTAWARE_PROCESSORS`` *after* any previously registered custom modifiers. Writing a context-aware processor ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The API contract for a processor is the same as a normal context processor, but with the addition of a ``context`` parameter, sent as a *named-kwarg*. A normal context processor looks like:: def my_processor(request): return {'MY_VALUE': 1} While a context-aware processor looks like:: def my_processor(request, context): if 'MY_KEY' in context: return {'MY_VALUE': 2} return {'MY_VALUE': None} Return values """"""""""""" A context-aware processor must return one of 3 things: - A ``dictionary`` to ``.update(...)`` the existing context with, - ``NotImplemented`` may be used to mark it as irrelevant for the request - For convienience, ``None`` may also be used to skip updating the context. Supported Django versions ------------------------- The tests are run against `Django`_ 1.8 through 1.10, and Python 2.7, 3.3, 3.4 and 3.5. Running the tests ^^^^^^^^^^^^^^^^^ If you have a cloned copy, you can do:: python setup.py test If you have tox, you can just do:: tox Contributing ------------ Please do! The project is hosted on `GitHub`_ in the `kezabelle/django-contextaware-processors`_ repository. Bug reports and feature requests can be filed on the repository's `issue tracker`_. If something can be discussed in 140 character chunks, there's also `my Twitter account`_. The license ----------- It's `FreeBSD`_. There's should be a ``LICENSE`` file in the root of the repository, and in any archives. .. _FreeBSD: http://en.wikipedia.org/wiki/BSD_licenses#2-clause_license_.28.22Simplified_BSD_License.22_or_.22FreeBSD_License.22.29 .. _Django: https://www.djangoproject.com/ .. _Class Based View: https://docs.djangoproject.com/en/stable/topics/class-based-views/ .. _context processor: https://docs.djangoproject.com/en/stable/topics/templates/#context-processors .. _TemplateResponse: https://docs.djangoproject.com/en/stable/ref/template-response/ .. _GitHub: https://www.github.com/ .. _kezabelle/django-contextaware-processors: https://www.github.com/kezabelle/django-contextaware-processors/ .. _issue tracker: https://www.github.com/kezabelle/django-contextaware-processors/issues/ .. _my Twitter account: https://www.twitter.com/kezabelle/ .. _pip: https://pip.pypa.io/en/stable/ .. _PyPI: https://pypi.python.org/pypi ---- Copyright (c) 2017, Keryn Knight All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---- Change history for django-contextaware-processors ------------------------------------------------- 0.1.1 ^^^^^^ * Initial release

نیازمندی

مقدار	نام
>=1.8	Django

نحوه نصب

نصب پکیج whl django-contextaware-processors-0.1.1:

pip install django-contextaware-processors-0.1.1.whl

نصب پکیج tar.gz django-contextaware-processors-0.1.1:

pip install django-contextaware-processors-0.1.1.tar.gz