unique_together with many to many fields
To use it, append all your model save methods with a IntegrityError catcher.
- unique_together
- m2m-manytomanyfield
- many-to-many-field
Snippet List
Chainable custom query manager for randomize.
This manager is based on the economical method of randomization. It usable in related models. For support this behavior required to be defined as default manger.
- queryset
- related-models
- randomize
- custom-manager
DownloadView generic class view
Generic class view to abstract out the task of serving up files from within Django. Recommended usage is to combine it with SingleObjectMixin and extend certain methods based on your particular use case. Example usage class Snippet(models.Model): name = models.CharField(max_length = 100) slug = SlugField() code = models.TextField() from django.views.generic.detail import SingleObjectMixin class DownloadSnippetView(SingleObjectMixin, DownloadView): model = Snippet use_xsendfile = False mimetype = 'application/python' def get_contents(self): return self.get_object().code def get_filename(self): return self.get_object().slug + '.py' '''
- view
- download
- class-based-views
SelectRelatedManager
Because select_related() only works on ForeignKeys that are not null or blank, when you are customizing the admin, even if you set "list_select_related=True" you can still end up with way too many querys in the Admin changelist. By adding this code to your model you can decrease the queries dramatically. I found I needed this when I was working with Django apps with a lot of legacy data and I couldn't set the ForeignKey null=False.
- admin
- manager
- select
- queryset
Serve admin-media from urls.py
By default the `runserver` command does some magic to automatically serve admin media. This magic doesn't happen when using other servers like gunicorn… But this makes that magic unnecessary by using urls.py to route requests for admin media to the standard static media server. `#include <production_disclaimer.h>`
- admin
- admin-media
Multiple User subclasses custom Auth backend
A project I'm working on requires multiple different classes of users, all with different fields/attributes. Having a single UserProfile class with a generic relation was a complete pain in practice. So, I changed my classes to all subclass User directly and then used django-model-utils to create a custom ModelBackend that returns the appropriate class when accessing request.user. The InheritanceQuerySet manager provided by django-model-utils makes it all possible and with only a single database query. No need to add anything directly to the User class, by the way. Just subclass it directly with each of your custom classes: class CustomUser1(User): field1 = models.CharField(...) class CustomUser2(User): field2 = models.CharField(...)
- user
- profile
- auth
- subclass
- backend
- modelbackend
Duplicating Template Tag
This template tag will duplicate its contents according to a variable or integer supplied to it. {% duplicate 3 %}a{% endduplicate %} This would return: > aaa
- template-tag
- duplicate
- loop
Newsletter email template
You can use this class for render and send html email message with the same logic and facility of website page creation. Just create an html template file with the same name of Class in lowercase.
- template
- newsletter
Admin log entries management utils
A collection of utilities for admin log entries management. This module provides functions to add log entries for instance addition, change and deletion, as seen in *django.contrib.admin.options*. It also provides a class based view mixin to add logging capabilities, and other tools as a log collector. See docstrings for a better description.
- admin
- logentry
Manual CSRF check for Django Facebook canvas applications
The way to manually control CSRF correctness for FB applications. Automatic check cannot be used because FB does POST on your canvas URL when initializing your application without CSRF token. If you still want to use Django CSRF stuff do manual checks. You only need to perform manual check when there is no correct signed_request present in your request - correct request means you really deal with FB. Use facebook_csrf_check to verify POST requests when signed_request is absent.
- django
- python
- post
- csrf
- fb
Configurable defaults for contrib.sites default Site during syncdb
This simple snippet provides a more sensible default for the Site object created during the first pass of syncdb (that is, with a default domain of `localhost:8000`). I made this so that the admin's "view on site" button will work automagically during my development cycle (which often involves dropping and recreating a sqlite database). In addition, it provides 2 options for configuring the default Site as you'd like: settings parameters (`DEFAULT_SITE_DOMAIN` and `DEFAULT_SITE_NAME`) or `kwargs` (the latter takes precedence).
- django
- admin
- sites
- syncdb
- contrib
- manage
- Site
- defaults
BRPhoneNumberWidget
A widget created for BRPhoneNumberField that splits the input into a <input> for the area code and another for the phone number. Usage example: class MyForm(forms.Form): mobile_phone = BRPhoneNumberField( label='Telefone Celular', widget=BRPhoneNumberWidget() ) ...
- phone
- br
- localflavor
- BRPhoneNumberField
datemate
This wil format the date to today at 1:03 pm , yesterday at 9:13 pm, 22 August at 10:08 pm
- datetime
- date
- date-format
madslug
this will turn ikfjji34 iojwe# eijdf#@$iojdfg 234oijdfg into ikfjji_iojwe_eijdfiojdfg_oijdfg
- text
- slug
ByteSplitterField
When you want to save integers to the db, you usually have the choice between 16-, 32- and 64-bit Integers (also 8- and 24-bit for MySQL). If that doesn't fit your needs and you want to use your db-memory more efficient, this field might be handy to you. Imagine you have 3 numbers, but need only 10 bit to encode each (i.e. from 0 to 1000). Instead of creating 3 smallint-fields (48 bit), you can create one 'ByteSplitterField' which implements 3 'subfields' and automatically encodes them inside a 32 bit integer. You don't have to take care how each 10-bit chunk is encoded into the 32-bit integer, it's all handled by the field (see also field's description). Additionally, the Field offers opportunity to use decimal_places for each of your subfields. These are 'binary decimal places', meaning the integer-content is automatically divided by 2, 4, 8, etc. when you fetch the value from the field. You can also specify how values are rounded ('round' parameter) and what happens when you try to save a value out of range ('overflow' parameter) Not implemented (maybe in the future if I should need it sometime): * signed values. All values are positive right now! * real (10-based) decimal places (actually you could probably directly use DecimalFields here) * further space optimization, i.e. saving into CharField that's length can be chosen byte-wise
- model
- db
- database
- field
- custom
- custom-model-field
- IntegerField
- multibit-field
- model-field
3110 snippets posted so far.