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upload handler decorators

In an admin custom view I had the requirement to modify the upload handlers. However, the @staff_member_required locked the Files upload handlers as it uses the request.POST - see [Ticket 7654](http://code.djangoproject.com/ticket/7654). These decorators can be used before other decorators to allow setting of the upload handlers. Usage example: @upload_handlers_insert(0, QuotaUploadHandler) @staff_member_required def upload(request): pass

  • admin
  • decorator
  • file
  • uploadhandler
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Last.fm Charts

This will fetch the Top Artists List for the given username from Last.fm. It makes use of the django.cache Framework. I use it with django 0.96.2. Enjoy! Usage: ` {% load lastfm %} {% lastfm_topartists YourName as topartists %} {% for artist in topartists %} {{ artist.thumbnail }}, {{ artist.name }}, {{ artist.url }}, {{ artist.playcount }} and so on {% endfor %} `

  • template
  • chart
  • lastfm
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Restrict Middleware

This is a _very basic_, _easily foolable_, restriction method implemented in a Django middleware. However, for low security sites that need a cursory barrier to entry (without the ability to assign/administer user accounts), this does very well. All of the features are fairly well-documented in the code.

  • whitelist
  • restrict
  • reject
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Google Charts Templatetags (Python)

The core templatetags for my project [google-chartwrapper](http://code.google.com/p/google-chartwrapper/). It is an easy method of creating dynamic GoogleCharts from the [GoogleChartAPI](http://code.google.com/apis/chart/). To get the most recent version: `svn checkout http://google-chartwrapper.googlecode.com/svn/trunk/` and run `python setup.py` in the downloaded trunk directory. There is an included django project there with the [ChartsExamples](http://code.google.com/p/google-chartwrapper/wiki/ChartExamples) all worked out in django templates

  • templatetags
  • google
  • chart
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Export Models

Warning: This python script is designed for Django 0.96. It exports data from models quite like the `dumpdata` command, and throws the data to the standard output. It fixes glitches with unicode/ascii characters. It looked like the 0.96 handles very badly unicode characters, unless you specify an argument that is not available via the command line. The simple usage is: $ python export_models.py -a <application1> [application2, application3...] As a plus, it allows you to export only one or several models inside your application, and not all of them: $ python export_models.py application1.MyModelStuff application1.MyOtherModel Of course, you can specify the output format (serializer) with the -f (--format) option. $ python export_models.py --format=xml application1.MyModel

  • tool
  • dump
  • serialization
  • export
  • db
  • database
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401 HttpResponse

This is a HTTP response is use in my application when I want to return a 401. It's pretty simple, but effective for my needs.

  • 401
  • httpresponse
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Custom optional abstract base attributes

I needed an abstract base class that can add attributes to the child classes based on the child's name. The attributes had to be implicit, but overridable, so all derived classes would get them by default, but they could be easily overriden in the child definition. So, the code code I came up with basically consists of a customized metaclass used by the abstract model.

  • model
  • abstract
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Author: tie
  • 0
  • 2

Creating MySQL Alter table commands for Foreign Keys

When using mysql the sql that is generated by syncdb doesn't create the foreign key relationship in all cases. This code will run through a file called create_table.sql in which you store all your create sql statements ( use "python manage.py sqlall app1 app2 > create_table.sql" ) and outputs all the neccesary alter table scripts that add the foreign key. Its not 100% proof since the generated names can end up being more than 40 characters. Need to work on that. I have [written](http://vidyanand.wordpress.com/2008/06/16/is-it-a-mysql-or-django-fault/) about it a little more in detail.

  • mysql
  • foreign-keys
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Simple views method binding

@match_func_by_method def frontpage (request) : pass def get_frontpage (request, argument, ) : # GET things pass def post_frontpage (request, argument, ) : # POST things pass

  • views
  • http-method
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Mail logged errors to administrators

Activate this middleware and define `LOG_FORMAT` & `LOG_ROOTS` in your `settings.py`. Then you can use Python's `logging` module for easy logging within your application.

  • middleware
  • email
  • logging
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module_from_path

I needed to dynamically import a module based on a path to that file on disk, without it necessarily being on the Python Path.

  • import
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sort_by_id_sequence

I needed to sort a set of objects (a QuerySet for example) by an externally provided list of IDs - for example: >>> writers = Writer.objects.all() >>> sort_by_id_sequence(writers, [3, 1, 2]) [<Writer id: 3>, <Writer id: 1>, <Writer id: 2>]

  • sorting
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