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All snippets written in Python

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Django and jQuery -- pulling info from a long-running process

Another sample of how to integrate Django and jQuery. === This starts a function in views.py that takes a long time to finish. It sets a session variable so that another function can report on the situation. We use jquery and ajax to 'pull' that data from Django so as to provide a progress report. I don't yet know how to background a long-running process, but this is an okay stop-gap method to use. I hope. \d

  • ajax
  • json
  • jquery
  • data
  • progress
  • pull
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Autogenerate admin classes in admin.py

Tired of adding admin classes to admin.py whenever you add a model? This admin.py automatically keeps itself up-to-date with your models.py file. It assumes if you have a model: MyModel, you want an admin class called AdminMyModel. Regards, Luke Miller

  • django
  • models
  • admin
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SQL Function Decorator

This decorator will replace a method on a model with a class method that executes SQL in the functions doc string.

  • sql
  • model
  • decorator
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auto generate admin.py

When you switch you django project from 0.9.6 to 1.0, you can use this script to generate admin.py automatically. You need copy cvt.py to the parent directory of your project(where your project lies) and type "python cvt.py <project> <app>". The admin.py will generated in the <project>/<app>(where it should be!). Enjoy this small work!

  • django
  • python
  • admin-interface
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render_partial

Works much like an inclusion_tag but allows the template_name to be given as an argument or defaults to partials/MODELNAME.html where MODELNAME is 'got' from the context object you want to render. Its very rough so improvements very welcome! It would be nice to be able to pass new context variables as template tag [keyword] arguments for use in the template to be rendered so you basically have a template tag equivalent for render_to_string... Example usage in a template: {% render_partial post %} or {% render_partial post partials/super_post.html %}

  • template
  • tag
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easy admin registration

This essentially wraps [snippet 917](http://www.djangosnippets.org/snippets/917/) (with full credit to author ncw) in a convenience function so that you can type: admin_register(admin, namespace=globals()) or more concisely: admin_register(admin, globals()) at the end of your admin.py file without having to register each model and admin class individually.

  • admin
  • register
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Integer Currency Input

This accepts values such as $1,000,000 and stores them to the database as integers. It also re-renders them to the screen using the django.contrib.humanize.intcomma method which takes 1000000 and turns it into 1,000,000. Useful for large currency fields where the decimals aren't really necessary.

  • newforms
  • currency
  • field
  • integer
  • input
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render_with decorator

Automatically render your view using render_to_response with the given template name and context, using RequestContext (if you don't know what this is you probably want to be using it). For example: @render_with('books/ledger/index.html') def ledger_index(request): return { 'accounts': ledger.Account.objects.order_by('number'), }

  • render_to_response
  • requestcontext
  • decorator
  • rendering
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Moving items up/down from the admin interface

Move Items up and down from the admin interface. Like phpBB does it with its forums. An additional select field is added to the admin form. After the model has been saved, a model method is called (with the value of the new field), which handles the reordering. A more detailed description and a screenshot can be found [here](http://blog.vicox.net/2008/09/04/ordering-in-django-10/).

  • admin
  • ordering
  • moving
  • up/down
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DebugFooter middleware with textmate links

a minor remix of simon's debug footer: <http://www.djangosnippets.org/snippets/766/> > Adds a hidden footer to the bottom of every text/html page containing a list of SQL queries executed and templates that were loaded (including their full filesystem path to help debug complex template loading scenarios). This version adds TextMate links : if you are working on your local machine and using TextMate you can click on the template paths and they will be opened in TextMate. This speeds up development time considerably ! also, this works with django 1.0 (simon's version got broke by the 'connect' refactor) update: the view function is now linked > To use, drop in to a file called 'debug_middleware.py' on your Python path and add 'debug_middleware.DebugFooter' to your MIDDLEWARE_CLASSES setting.

  • middleware
  • debug
  • textmate
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Remove quotes from bits in a custom tag

A simple function that will remove the quote marks from every string in a list - if and only if the quote marks are the first and last character of the string, regardless of whether they are single or double quotes. Useful when parsing the arguments of a custom tag.

  • quotes
  • parse
  • custom-tags
  • tokens
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Decorator cache handler per view

The @cache_holding decorator works in a per-function base, you can specify a list of models or just a model and the second argument is the time in seconds to be cached. You can modify the proxy class by a keyword argument so you can do cache to all kind of things, also if you want to use a prefix as key + the hash value you can specify the prefix keyword argument.

  • cache
  • view
  • decorator
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