Simple filter that truncates string to specific number of letters. Example usage in template: `{{ myvariable|truncatestring:20 }}` if myvariable is "That is my long string", the result will be: "That is my long s...". Put the code into templatetags/.
** DEPRECATED**, use [django-reversetag @ github](http://github.com/ulope/django-reversetag/tree/master) instead. If you want to be able to use context variables as argument for the "url" template tag this is for you. Just put this code somwhere where it will be run early (like your app's _ _init_ _.py) and of you go. Usage: {% url name_of_view_or_variable arg1 arg2 %} **NOTE:** This may possibly break your site! Every view name that is passed to url will be tried to be resolved as a context variable first! So if there is a variable coincidentally named like one of your views THEN IT WILL BREAK. So far it works great for me, but keep an eye out for name clashes.
http://steven.bitsetters.com/articles/2009/03/09/testing-email-registration-flows-in-django/ Testing email registration flows is typically a pain. Most of the time I just want to sign up with a test user, get the email link and finish the flow. I also want to be able to automate the whole process without having to write some SMTP code to check some mail box for the email. The best way I’ve found to do this is just to write out your emails to some file instead of actually sending them via SMTP when your testing. Below is some code to do just that. I’ve also created a Django management script that will open the last email sent out from your application, find the first link in it and open it in your web browser. Quite handy for following email registration links without logging into your email and clicking on them manually.
There are probably ways to improve the implementation, but this was something I came up with when I wanted to change the default size of all of my CharField admin fields. Now all I have to do in my ModelAdmin class is: form = get_admin_form(model) or subclass BaseAdminForm if I need extra validation or more widget customization for an individual admin form.
Middleware for implementing "hours of operation" for a website. In use (as configured here) on http://ianab.com/.
**Example usage**: {% copyright_since 2008 %}, {% copyright_since 2009 %} **Output**: © 2008—2009, © 2009 Use this templatetag in your footer to achieve proper formatting of copyright notice.
Groups an arbitrary number of variables into a list. `{% group "foo", 2, "bar" as my_list %}`
This is heavily inspired by [http://code.google.com/p/smorgasbord/](http://code.google.com/p/smorgasbord/). But that couldn't reuse an existing jinja2 Environment, nor set filters on the Environment it created. This code assumes that you have `env` declared previously in the file as your Jinja2 Environment instance. In `settings.py`, you should set KEEP_DJANGO_TEMPLATES = ( '/django/contrib/', ) so that your Django admin still works. You can also set any other places that you do want to use Django templates there.
Some of this is modified from [http://www.djangosnippets.org/snippets/1062/](http://www.djangosnippets.org/snippets/1062/)
Formats float values with specified number of significant digits (defaults to 3). Usage: `{{value|sigdig}} # with 3 significant digits by default` `{{value|sigdig:digits}}` Examples: `{{0.001432143|sigdig}}` renders as `0.00143` `{{874321.4327184|sigdig}}` renders as `874000` `{{874321.4327184|sigdig:5}}` renders as `874320` Useful for scientific or engineering presentation.
A simplejson encoder that knows how to encode django models, and it's little brother that also know how to deals with lazy translations.
Change field meta data or add a html attribute to a ModelForm field in a DRY way.
This code creates a widget that we used to generate a list of radiobuttons as follows: * Radio button 1 --Widget__1 * Radio button 2 --Widget__2 * Radio button 3 --Widget__3 How to use it is: `ImagenForm class (forms.ModelForm): widget1 = forms.BooleanField () widget2 = forms.TextInput widget3 = forms.ModelChoiceField (queryset = Modelo.objects.all ()) widget4 = forms.FileInput optConListas = ChoiceWithOtherField (choices = [(2, 'widget1' widget1), (3, 'widget2' widget3.widget), (4, "widget2" widget2), (5, 'widget4' widget4)])`
I didn't really like the current state of iPhone/Mobile redirect middleware mainly because I wanted something that was closer to twitters use case. So I came up with this. I don't think it a great snippet and I will probably fix it in the near future. But it works.
This is a decorator that logs function arguments, return object and time taken for execution as well as any exception that might have been raised by the function. Useful for debug logging.