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Description:

djangocontextdecorator 1.6.1

django-context-decorator is a Python package for Django removing the need
to call super().get_context_data(**kwargs) in nearly every Django view.
You can also read the blog post about this package.
*Note:* If this package is looking unmaintained due to no recent commits, that’s
because it’s a tiny package that is feature complete and stable. I see no need to
release a new version just to add explicit compatibility with new Django versions,
but for as long as Django provides class-based views with a get_context_data
method, this package will work with them.

Usage
from django_context_decorator import context
from django.utils.functional import cached_property
from django.views.generic import TemplateView

class MyView(TemplateView):
template_name = 'path/to/template.html'

@context
def context_variable(self):
return 'context value'

@context
@property
def context_property(self):
return 'context property'

@context
@cached_property
def expensive_context_property(self):
return 'expensive context property'
Now you’ll have access to {{ context_variable }}, {{ context_property }}
and {{ expensive_context_property }} in your template.
Please note: While this package works with the @cached_property decorator,
please make sure to add the @context decorator above the
@cached_property decorator.
This is especially useful when you couple it with inheritance, because it
allows you to re-use parent class variables without having to extract them from
your context. So you could write a long-form like this:
from django.views.generic import TemplateView

class BaseMixin:

def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx['var_from_base_mixin'] = 'var_from_base_mixin'
return ctx

class View1(BaseMixin, TemplateView):

def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx['var_from_view_1'] = 'value_from_view_1'
return ctx

class View2(View1):

def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx['var_from_view_2'] = 'value_from_view_2'
return ctx
instead like this:
from django.views.generic import TemplateView
from django_context_decorator import context

class BaseMixin:

@context
def var_from_base_mixin(self):
return 'var_from_base_mixin'

class View1(BaseMixin, TemplateView):

@context
def var_from_view_1(self):
return 'value_from_view_1'

class View2(View1):

@context
def var_from_view_2(self):
return 'value_from_view_2'

Development
All code resides in django_context_decorator.py. Tests are collected by
pytest from all files starting with test_. To run tests, start a
virtual environment, install the dependencies, and run pytest:
pip install django pytest pytest-cov
pytest --cov-report term --cov=django_context_decorator