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All snippets written in Python

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Function cache decorator

This is caching mechanism augmented to help address a number of common pitfalls in caching: cache stampeding, simultaneous expiry, cache invalidation, and the storing of None as a legitimate value. No doubt the automatic key generation could stand to be simplified, but it works.

  • cache
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Git Revision Template Tag

This displays the short commit id from the current HEAD. Add this to your admin/base_site.html or any other template. {% block userlinks %} /&nbsp;HEAD: <span style="color:yellow">{% git_short_version %}</span> /&nbsp; {{ block.super }} {% endblock %}

  • git
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Active page class for selected menu items

Simple tag to check which page we are on, based on resolve: useful to add an 'active' css class in menu items that needs to be aware when they are selected. Typical usage is like: ` <ul> <li class="{% active request "myapp:myview1" %}">My View 1</li> <li class="{% active request "myapp:myview2" %}">My View 2</li> </ul> `

  • templatetag
  • menu
  • tab
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django-thumbs black&white support

Based on the original http://code.google.com/p/django-thumbs/ Added South support too. Usage: ` photo = ImageWithThumbsField(upload_to='images', sizes=((125,125,True),(300,200),)` To retrieve image URL, exactly the same way as with ImageField: `my_object.photo.url` To retrieve thumbnails URL's just add the size to it: `my_object.photo.url_125x125` `my_object.photo.url_300x200` To convert to greyscale set the third attribute of size to True

  • thumbs
  • django-thumbs
  • grayscale
  • black and white
  • thumbsnails
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Unique field inline formset

This method will return an inline formset class that validates values across the given field are unique among all forms. For instance: ApprovedUserFormSet = inlineformset_factory(Request, ApprovedUser, formset=unique_field_formset('email'), form=ApprovedUserForm) Will make sure all ApprovedUser objects created for the Request have unique "email" fields.

  • field
  • unique
  • formset
  • inlineformset
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Alternative to Class Based Views

There is a lot of debate on whether there is a real future for the Django CBVs (class based views). Personally, I find them tedious, and just wanted a way to keep my views clean. So, here is a really minimalistic way of having class based views, without the fuss. This is a fork from: http://stackoverflow.com/questions/742/class-views-in-django http://djangosnippets.org/snippets/2041/

  • views
  • class
  • cbv
  • based
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Syntax highlighting for tracebacks in console output

This is hardcoded to use [django-discover-runner](http://pypi.python.org/pypi/django-discover-runner) since that's my main test runner but could easily be adopted to use Django's own test runner. If you're using a terminal that is capable of showing 256 colors use the `Terminal256Formatter` formatter instead. Enabled it with the `TEST_RUNNER` setting: TEST_RUNNER = 'dotted.path.to.highlighted.runner.HighlightedDiscoverRunner' Where `dotted.path.to.highlighted.runner` is the Python import path of the file you saved the runner in.

  • pygments
  • testing
  • test
  • traceback
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Automatically set up a project

This is a script to automatically set up a django project It takes only one argument for the project name This works for Django 1.4 It will create the following directory structure: /project /server (app name) /media: /html /css /js /img

  • automatic
  • createproject
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