This view snippet is a helper for implementing file download handlers. There is a standard to encode Unicode filenames properly, but many browsers have different protocols. The default encoding is assumed to be UTF-8.
This snippet helps preserving query parameters such as page number when the view perform redirects. It does not support hooking templates and contexts currently.
Although many people have already posted cookieless session middlewares and related stuffs, but this one is just for only required views. You can use this as a view decorator like: @session_from_http_params @login_required def your_view(request): ... This is very useful for those who use SWFUpload. Flash has a bug with sending cookies properly, so SWFUpload offers an workaround -- session key as a POST parameter.
We currently use two-level tuples to specify choices of a field in models or forms. But, because it has only (value, verbose name) pair, the readability is bad whenever we indicate a specific choice value in our Python codes. So I made a small class that does "magic" for this: A Named Enumeration. Instead of `myobj.status == 0`, use `myobj.status == STATUS.UNREVIEWED`, for example.
If you use decorators to views, it will greatly improve readability and extensibility of your code. I'm using a couple of decorators like this to reduce complexity and redundancy in my view codes. `wraps` from Python 2.5's standard library make the attributes (name, docstring, and etc) of the decorated function same to those of `view_func` so that it could be easily recognized when you run `./manage.py show_urls` or debug.
This snippet shows a way to preserve GET arguments with pagination. Many people make mistakes to omit the query arguments besides page arguments for the pagination, and making sure correct may sphagettize your code.
If you're using [Django granular permissions](http://code.google.com/p/django-granular-permissions/), this templatetag may be useful. It enables you to check permission in templates, as mentioned in the code: {% has_row_perm user object "staff" as some_var %} {% if some_var %} ... {% endif %} To be used in `if` statements, it always saves the result to the indicated context variable. Put the snippet in row_perms.py in yourapp.templatetags package, and use `{% load row_perms %}` at your template.
achimnol has posted 7 snippets.