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All snippets written in Python

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Generating aggregate data across generic relations

http://github.com/coleifer/django-generic-aggregation http://charlesleifer.com/blog/generating-aggregate-data-across-generic-relations/ Generate and calculate aggregations across generic foreign keys. >>> from misc import generic_annotate, generic_aggregate >>> from blog.models import Entry >>> from tagging.models import TaggedItem >>> from django.db.models import Count >>> qs = generic_annotate(Entry.objects.all(), TaggedItem.object, 'id', Count) >>> qs[0].score 5L >>> qs[1].score 4L >>> qs[1].tags u'databases django many-to-many python' >>> generic_aggregate(Entry.objects.all(), TaggedItem.object, 'id', Count) 106L # total number of times entries were tagged

  • django
  • gfk
  • aggregation
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RelatedNullFilterSpec: django-admin custom filter all/null/not null/choices

A simple django-admin filter to replace standar RelatedFilterSpec with one with the "All"/"Null"/"Not null" options. It applies to all relational fields (ForeignKey, ManyToManyField). You can put the code in the `__init__.py` or wherever you want. The `_register_front` idea is copied on [this snippet](http://djangosnippets.org/snippets/1963/)

  • filter
  • admin
  • null
  • filterspec
  • ManyToManyField
  • ForeignKey
  • not-null
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Admin Save and view next button

Add a Save and view next button to your admin change form. Put the code at [link](http://www.djangosnippets.org/snippets/2006/) in a file called myapp/templates/admin/myapp/change_form.html Note: Requires Django 1.2.

  • admin
  • view
  • save
  • button
  • next
  • 1.2
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Fuzzy Date Diff Template Filter

Pass in a date and you get a humanized fuzzy date diff; e.g. "2 weeks ago" or "in 5 months". The date you pass in can be in the past or future (or even the present, for that matter). The result is rounded, so a date 45 days ago will be "2 months ago", and a date 400 days from now will be "in 1 year". Usage: * `{{ my_date|date_diff }}` will give you a date_diff between `my_date` and `datetime.date.today()` * `{{ my_date|date_diff:another_date }}` will give you a date_diff between `my_date` and `another_date` Make sure to install this as a template tag and call `{% load date_diff %}` in your template; see the [custom template tag docs](http://docs.djangoproject.com/en/dev/howto/custom-template-tags/) if you don't know how to do that.

  • template
  • filter
  • date
  • humanize
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Import xls to satchmo

Just a quick solution to import product data from a excel spreadsheet to satchmo. Supports * hierarchical and multi categories * product attributes * product variations (configurable product, options) * product price * product image

  • excel-import
  • satchmo
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Continuous Integration command

This command, `runtester` will run the test suite whenever files are modified. It takes the apps to test as arguments; if no apps are given the entire test suite is run. Use this command just as `runserver` is used; fire it up in a shell and it does its thing. Copy this snippet into `django/core/management/commands/runtester.py`.

  • testing
  • tests
  • commands
  • command
  • test-runner
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Bit.ly url shortener

A small function to convert a url to another shortened via the bit.ly service. Requires a username and password in django settings.

  • bit.ly
  • rest-api
  • url-shortening
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Error rate limiter

Prevents error flooding on high traffic production sites. Particularly useful to prevent clogging email servers etc. See [discussion](http://groups.google.com/group/django-developers/browse_thread/thread/1dabc9139dd750ca/1d86fdca23189a7d?lnk=gst&q=error#1d86fdca23189a7d) and [closed ticket](http://code.djangoproject.com/ticket/11565). Uses memcache if it can, or falls back to local, in-process memory where unavailable (down, etc). Tweak to your needs using setting ERROR_RATE_LIMIT (seconds). Requires Django 1.3+ or trunk r13981+

  • error
  • logging
  • emails
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Author: s29
  • 2
  • 3

slugify with transliteration

This slugify correctly transliterates special characters using the translitcodec package from PyPI. Make sure you've installed http://pypi.python.org/pypi/translitcodec/ before using this.

  • slug
  • slugify
  • special chars
  • trans
  • transliteration
  • umlauts
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Remove named field from fieldsets

This snipped removes a specific fields from the fieldsets. This is very useful to leave a field 'out' in the admin, likewise: def get_fieldsets(self, request, obj=None): fieldsets = super(BlaModelAdmin, self).get_fieldsets(request, obj) if not request.user.has_perm('change_blah'): remove_from_fieldsets(fieldsets, ('blah',))

  • admin
  • fieldset
  • form
  • field
  • fieldsets
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Declaring django views like web.py views

I work a little with [web.py framework](http://webpy.org/) and I like a lot the view definition. For each view you define a class and in that class you can define two method, GET and POST. If the http request is a GET request the GET method will be called and if http request is a POST request the POST method is called. Then you can define common stuff in another method that could be called inside each method, and you have a class for each view.

  • views
  • class
  • web.py
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send a simple Campfire chat message from fabric script

look ma, no api! a python method for [fabric](fabfile.org) script to send a message to your [campfire](campfirenow.com) chat room. not really a django script but I didn't know where else to put it. I use it to send a deployment messages to campfire when we deploy new revisions. like the comment mentions, put your api key in ~/.fabricrc. the example api key is garbage so don't waste your time.

  • basecamp
  • campfire
  • chat
  • fabric
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