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All snippets written in Python

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Django with AngularJS

This is a simpel snippet to prevent conflict between Django and AngularJS template syntax. It is possible to change the AngularJS syntax, but this can cause compatibility problems, so I figured that this was a better solution.

  • AngularJS
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Transparent encryption for model fields

Here's a simple way to transparently encrypt a field (just repeat the idiom for more than one) so that it is not stored plaintext in the database. This might be useful for social security numbers, etc. The storage size for the ciphertext depends on which algorithm you use. Blowfish here requires 32 characters to store an encrypted 16 characters. Note also that Blowfish requires a block size of a multiple of 8, so that is what the repeat in the _set_ssn() is all about. The Crypto module is from http://www.amk.ca/python/code/crypto.html I make no claims as to how secure this scheme is overall, comments on this are welcome.

  • database
  • encryption
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AntiSpamForm

A general AntiSpamForm using some tricks to prevent spam based on current [django.contrib.comments.forms](http://code.djangoproject.com/browser/django/trunk/django/contrib/comments/forms.py). It uses a timestamp, a security hash and a honeypot field. See [AntiSpamModelForm](http://www.djangosnippets.org/snippets/1856/) too.

  • forms
  • spam
  • form
  • antispam
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Plugin Framework

This is a very basic -- yet fully functional -- framework for producing a loosely coupled plugin architecture. Full details of its use can be found [on my blog](http://gulopine.gamemusic.org/2008/jan/10/simple-plugin-framework/), but the basics are listed below. ## Defining a mount point for plugins class ActionProvider: __metaclass__ = PluginMount ## Implementing plugins class Insert(ActionProvider): def perform(self): # Do stuff here class Update(ActionProvider): def perform(self): # Do stuff here ## Utilizing plugins for action in ActionProvider.plugins: action.perform() Yes, it really is that simple.

  • plugins
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Show template names in markup

Simple snippet to show the names of the templates on the page. It's a custom template loader that just prints out the name of the template at the start of the template. To set it up, just place it in a file, for example spy.py. Then edit settings.py and add this to the start of the tuple list for TEMPLATE_LOADERS. TEMPLATE_LOADERS = ( 'appname.spy.load_template_source', 'django.template.loaders.filesystem.Loader', 'django.template.loaders.app_directories.Loader', ) This was useful for me because I'm starting to use a django project that's a big on the big side and I'm trying to do a theme for it. I'm not very familiar with their templates, so these visual cues will help instead of walking through the template code. Hope this is helpful for some one else too.

  • template
  • templates
  • loader
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Admin Apps Names Translation

This Snippet allows for your project's apps names to be displayed as you want in the Admin, including translations. The lists of apps and languages are created from your settings.py file. **How to use** 1st part: - Create a application called 'apps_verbose' in you project with the models.py and admin.py showed here - Create a folder inside it with named 'templatetags' with the verbose_tags.py file inside it. - Add this app to installed apps in your settings.py - If you change this app name, dont forget to correct the imports. 2nd part: - Create a folder named 'admin' in your templates folder and copy the following files form your /django/contrib/admin/templates/admin/ folder. - /app_index.html - /base.html - /change_form.html - /change_list.html - /delete_confirmation.html - /delete_selected_confirmation.html - /index.html - /object_history.html - Make the necessary changes in each file, like shown here. 3rd part: - Create translations in the Admin and enjoy.

  • template
  • django
  • admin
  • i18n
  • python
  • tags
  • html
  • app
  • translation
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Author: Nad
  • 3
  • 5

Switch template tag

The `{% switch %}` tag compares a variable against one or more values in `{% case %}` tags, and outputs the contents of the matching block. An optional `{% else %}` tag sets off the default output if no matches could be found: {% switch result_count %} {% case 0 %} There are no search results. {% case 1 %} There is one search result. {% else %} Jackpot! Your search found {{ result_count }} results. {% endswitch %} Each `{% case %}` tag can take multiple values to compare the variable against: {% switch username %} {% case "Jim" "Bob" "Joe" %} Me old mate {{ username }}! How ya doin? {% else %} Hello {{ username }} {% endswitch %}

  • tag
  • templatetag
  • switch
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Use email addresses for user name for django 1.3

[Chris' code](http://djangosnippets.org/snippets/1845/) adapted to django 1.3. Basicly E-mail authorisation backend. Put it as one of your AUTHENTICATION_BACKENDS in settings.py: AUTHENTICATION_BACKENDS = ( 'community.auth.EmailBackend', )

  • email
  • auth
  • backend
  • authorisation
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Little middleware that create a facebook user

**How to use**: 1. Install [**PyFacebook** package](http://wiki.developers.facebook.com/index.php/PythonPyFacebookTutorial). 2. After make all steps in tutorial above, put this code in your app's models.py module (you maybe prefer split it and put the middleware class in some other file). 3. Put the FacebookUserMiddleware python-path in the MIDDLEWARE_CLASSES in your settings.py (after facebook.djangofb.FacebookMiddleware). You probably will add some fields to FacebookUser model class :)

  • middleware
  • user
  • facebook
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Manage.py alterdb command

added commands: altersql - shows sql code with alter queries alterdb - apply alter queries. parameters: --showsql - show queries --app=APPLICATION - alter only selected application [you need clone this repo](https://bitbucket.org/certator/django_snippets)

  • hack
  • table
  • syncdb
  • alter
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GeoJSON Serializer for GeoDjango (gis)

**Please use the updated version http://djangosnippets.org/snippets/2596/** Unfortunately the built in Django JSON serialzer encodes GeoDjango GeometyrField as simple text. This snippet extends django's serializer and adds support for GeoJson format. Built in JSON serializer output: [{"pk": 1, ... "geopoint": "POINT (-76.5060419999999937 44.2337040000000030)" ... }] GeoJSON serializer ouput: [{"pk": 1, ... "geopoint": {"type": "Point", "coordinates": [-76.503296000000006, 44.230956999999997]}}]

  • GeoJson
  • Serializer
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Skip only specified spaces

Similar to `{% spaceless %}`, but only removes spaces followed by a special marker (`&nosp;`). Helps keeping proper indentation: {% skipspaces %} Lots of coffee {% if from_brazil %} from Brazil {% else %} from Columbia {% endif %} {% if tea %}&nosp;, some tea{% endif %} and a cake. {% endskipspaces %} Otherwise you'd have to write it in one looong line or get used to living with spaces before commas :) NB the marker itself is stripped from rendered html as well.

  • spaceless
  • whitespace
  • skip
  • spaces
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