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All snippets written in Python

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Closure for FieldListFilter classes with custom sets of ranges

This closure lets you quickly produce date-style range filters in the Django Admin interface without having to create a new class for each one. It follows Python range semantics, with the lower value using a `_gte` test and the upper value using an `_lt` test. Here's an example of how I'm using it in one of my projects: list_filter = ('complete', ('chapters', makeRangeFieldListFilter([ (_('1'), 1, 2), (_('2 to 10'), 2, 10), (_('11 to 30'), 11, 30), (_('31 to 100'), 31, 100), (_('At least 100'), 100, None), ], nullable=True)), ('word_count', makeRangeFieldListFilter([ (_('Less than 1000'), None, 1000), (_('1K to 5K'), 1000, 5000), (_('5K to 10K'), 5000, 10000), (_('10K to 75K'), 10000, 75000), (_('75K to 150K'), 75000, 150000), (_('150K to 300K'), 150000, 300000), (_('At least 300K'), 300000, None), ], nullable=True)), ('derivatives_count', makeRangeFieldListFilter([ (_('None'), 0, 1), (_('1 to 5'), 1, 5), (_('5 to 50'), 5, 50), (_('50 to 1000'), 50, 1000), (_('At least 1000'), 1000, None), ])), 'pub_date', 'upd_date') It is based on code from `DateFieldListFilter` and `BooleanFieldListFilter` from `django.contrib.admin.filters`.

  • filter
  • django
  • admin
  • fieldlistfilter
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Digg-style pagination, and retain GET params

This snipplet is based on [Ryan Kanno's work](http://blog.localkinegrinds.com/2007/09/06/digg-style-pagination-in-django/) and [snipplet #2680](http://djangosnippets.org/snippets/2680/). The page numbers are basically composed by `pages_outside_trailing_range`, `page_range` and `pages_outside_leading_range`. The GET params in the request(except for `page` itself) are retained across different pages. This is important when you have an `order_by` param working inline.

  • pagination
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yandex maps templatetag

https://github.com/coolchevy/django-yandexmaps django-yandexmaps ================= easy maps integration via yandex maps api Installation ============ 1. Add your YANDEXMAPS_API_KEY to settings.py http://api.yandex.ru/maps/form.xml/ 2. Add 'yandex_maps' in INSTALLED_APPS Usage ============ Template:: {% load yandexmaps_tags %} {% yandex_map_by_address object.get_address object.title 500,300 %} Demo ============ http://colorsound.com.ua/clubs/porter-pub-1/

  • template
  • django
  • templatetag
  • api
  • templatetags
  • yandex
  • maps
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True Unique Boolean Model Decorator

This class decorator will help you when you want to keep a unique boolean (think a 'default' field which should only be only one set to true in a group). The interesting thing with this, is that it's possible to assign a subset of fields to be used, so that the uniqueness of the field will be guaranteed among only the subset (look at the Example section in the code to understand this behaviour). This is a better and improved way of doing http://djangosnippets.org/snippets/2676/

  • model
  • unique
  • boolean
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Load response.content in browser (for debugging)

When debugging tests you frequently need to inspect response content, making a pdb. set_trace() breakpoint and printing response.content but html isn't enough human readable (even for programmers :D) so, why not open it in your browser? Suposse you save this code in utils.py and you break your testcase as this: response = self.client.get(self.url) import pdb; pdb.set_trace() Then: (pdb) from utils import load_response_on_firefox (pdb) load_response_on_firefox(response) Ta-Da!

  • debug
  • testing
  • response
  • response.content
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HttpResponseSendfile

An HttpResponse for giving the user a file download, taking advantage of X-Sendfile if it's available, using FileWrapper if not. Usage: HttpResponseSendfile('/path/to/file.ext') To bypass the fallback: HttpResponseSendfile('/path/to/file.ext', fallback=False) This has been tested working with Lighttpd 1.4.28's mod_fastcgi.

  • download
  • sendfile
  • x-sendfile
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Django enumeration for model field choices

The problem with supplying a Django model field with choices parameter is the way you check a value of that field in an object. You do nasty things like this: if model_instance.choice_field == 1: The problem of getting rid of hard-coded numbers is recognized over the internet, but I haven't found any short and understandable solution. Basically, we need a enumeration in python, that is ok to use as the Django `choices` model field argument. I've seen a couple of solutions of DjangoSnippets. Mine is shorter and easier because it only works for integer field choices.

  • choices
  • integer
  • enumeration
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Encrypted paypal buttons

Function and usage in views and template with django-paypal to have encrypted paypal buttons with a cart(adding multiple elements). All credits go to Jon Atkinson, http://jonatkinson.co.uk/paypal-encrypted-buttons-django/ I just added it here with a complete implementation using a cart(his example didnt include it). I know there is some redundancy in the data passed to the dict and the submit form, i'm just not sure what can i take out, the paypal docs are not clear about it, if you test this code without some of the data and it works, please tell me. The key parts are the cmd _s-xclick and again the cmd '_cart' both are needed.

  • paypal
  • encrypted button
  • cart
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