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OpenID Form Field

**This is a newforms field for OpenID 1 & 2.** It normalizes and validates OpenID identifiers according to the [spec](http://openid.net/specs/openid-authentication-2_0.html#normalization): * `xri://=joelwatts` to `=joelwatts` * `joelwatts.com` to `http://joelwatts.com/` * `www.joelwatts.com` to `http://joelwatts.com/` An identifier that is well-formed, but not an OpenID (e.g. `example.com`), will cause a validation error. Requires [Python OpenID Library](http://openidenabled.com/python-openid/) 2.x.x.

  • newforms
  • fields
  • forms
  • form
  • field
  • openid
  • openid2
  • inames
  • identity
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Custom managers with chainable filters

The Django docs show us how to give models a custom manager. Unfortunately, filter methods defined this way cannot be chained to each other or to standard queryset filters. Try it: class NewsManager(models.Manager): def live(self): return self.filter(state='published') def interesting(self): return self.filter(interesting=True) >>> NewsManager().live().interesting() AttributeError: '_QuerySet' object has no attribute 'interesting' So, instead of adding our new filters to the custom manager, we add them to a custom queryset. But we still want to be able to access them as methods of the manager. We could add stub methods on the manager for each new filter, calling the corresponding method on the queryset - but that would be a blatant DRY violation. A custom `__getattr__` method on the manager takes care of that problem. And now we can do: >>> NewsManager().live().interesting() [<NewsItem: ...>]

  • manager
  • queryset
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Pickled Object Field

*Incredibly useful for storing just about anything in the database (provided it is Pickle-able, of course) when there isn't a 'proper' field for the job:* A field which can store any pickleable object in the database. It is database-agnostic, and should work with any database backend you can throw at it. Pass in any object and it will be automagically converted behind the scenes, and you never have to manually pickle or unpickle anything. Also works fine when querying. **Please note that this is supposed to be two files, one fields.py and one tests.py (if you don't care about the unit tests, just use fields.py)**

  • model
  • db
  • orm
  • database
  • pickle
  • object
  • field
  • pickled
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newforms self-contained login form

A simple login form that does the actual authentification itself. **Usage:** if request.method == "POST": loginform = LoginForm(request.POST) if loginform.login(): return HttpResponseRedirect(redir_url) else: loginform = LoginForm()

  • newforms
  • login
  • auth
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Django Registration with GMail account

This code works with Django-registration app found here: http://code.google.com/p/django-registration/ If you plan to use this django-registrtion code in your website to allow user registration but do not run your own email server,this snippet can be handy. It uses gmail server to send out email. You have to install libgmail module first. Add two lines to your `settings.py` GMAIL_USERNAME = '[email protected]' GMAIL_PASSWORD = 'your_password' Change models.py - create_inactive_user(...) as given above

  • registration
  • email
  • gmail
  • django-registration
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Updated version of #31

This is, I think, a slightly cleaner implentation of what [snippet 31](/snippets/31/) is trying to do; by starting off with a dictionary containing the things we want to look for, and using a list comprehension to kill anything which comes out of the form as `None`, we can avoid some of the intermediate data structures the other snippet was using, and hopefully get better performance. This is also quite a bit more maintainable, because supporting additional options now only requires adding a new key/value pair to `qdict`.

  • search
  • q-objects
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Simple REST APIs

This is how I tend to roll simple REST APIs. It's by no means as full-featured as something like Piston, but it's simple, clean, and it works.

  • rest
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Twitter oAuth example

**UPDATE**: A more complete example is up on [GitHub](http://github.com/henriklied/django-twitter-oauth/tree/master) Based around Simon Willison's [Fire Eagle oAuth](http://www.djangosnippets.org/snippets/655/), this will allow you to develop Twitter oAuth applications (…that is – if you're in the closed beta)

  • twitter
  • oauth
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User from session key

This blog post outlined how to get the user from the session key: http://scottbarnham.com/blog/2008/12/04/get-user-from-session-key-in-django/ Unfortunately, it assumes DB-backed session and auth backends. This isn't required, so this snippet provides a backend-agnostic way to do the same thing. >>> skey = 'ea0ed02d35d43aeaf20b3ef516f51396' >>> user_from_session_key(skey) <User: jeremyd>

  • session
  • user
  • auth
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Enforce site wide login

This is based on a snippet contributed by zbyte64 ( RequireLoginMiddleware) but turned on its head. RequireLoginMiddleware enforces authentication for a subset of urls defined in settings.py. This middleware requires authentication for all urls except those defined in settings.py. The aim is to globally enforce site wide authentication without having to decorate individual views. To use, add the class to MIDDLEWARE_CLASSES and then define the urls you don't need authentication for. These go in a tuple called PUBLIC_URLS in settings.py. For example:- PUBLIC_URLS = ( r'project/application/login/', r'project/application/signup/', ) By default, authentication is not required for any urls served statically by Django. If you want to subject these to the same validation, add an entry to settings.py called SERVE_STATIC_TO_PUBLIC with a value of True.

  • middleware
  • authentication
  • login
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Easy file upload handler

This function emulates the file upload behaviour of django's admin, but can be used in any view. It takes a list of POST keys that represent uploaded files, and saves the files into a date-formatted directory in the same manner as a `FileField`'s `upload_to` argument.

  • image
  • forms
  • view
  • upload
  • imagefield
  • filefield
  • file
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breadcrumbs

With this script you can create a simple breadcrumbs line for navigation: Home >> Page >> Subpage ...

  • breadcrumbs
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Credit Card With Newforms

Alternative version of newform code for handling credit cards. Unlike the other two credit-card snippets (http://www.djangosnippets.org/snippets/764/ and http://www.djangosnippets.org/snippets/830/), this uses two drop-down boxes instead of text fields for the expiration date, which is a bit friendlier. It doesn't do as much checking as snippet #764 since we rely on the payment gateway for doing that. We only accept Mastercard, Visa, and American Express, so the validation code checks for that.

  • newforms
  • datefield
  • credit-card
  • expiration-date
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