Print Exceptions to the Console
Put this in an __init__.py somewhere that will be executed on initialization and all errors will be printed out to stderr. Useful for debugging Facebook apps, javascript calls, etc.
- console
- exception
- signal
Snippet List
Use class name in templates
For use in templates: {% if object|classname:"entry" %} ... class="{{ object|classname }}" ... I couldn't find simpler solution for checking weather specific object belongs to specific class name, or just to output object's class name.
- filter
- classname
CatchTag - Catching the content and saving it to a variable
You can use this tag to "catch" some template snippets and save it into a context variable, then use this variable later. How to use it {% catch as var1 %}any tags and html content{% endcatch %} ... {{ var1 }}
- tag
LogTrace
This small decorator will trace the execution of your code every time it enters or exits a decorated function (by thread) and will insert appropriate indent into the log file along with exception information.
- decorator
- logging
- hax
- trace
Image inlining template tag lib
A custom templatetag for inlining image in the browser. The principe is to base64 encode the image and avoid a http request. There is a cache handling, you just have to specify a writable directory. An example of the utilisation (template part): [http://djangosnippets.org/snippets/2267/](http://djangosnippets.org/snippets/2267/) The explication on [http://raphaelbeck.wordpress.com/2010/11/14/make-inline-images-to-improve-performance-with-django-template-tags/](http://raphaelbeck.wordpress.com/2010/11/14/make-inline-images-to-improve-performance-with-django-template-tags/)
- tag
- image
- templatetag
- base64
Django Admin Replacer Code
Ok let's descrive what i have done I subclassed the django admin to create a form that makes you choose if activate a delete and replace login inside your admin. Then i have added a form with a modelChoiceField to make you select another model instance when you are selecting an istance to delete. If you select another instance the current instance will be replaced.
- admin
- object
- delete
- modeladmin
- replacer
widget to capture a geographic Point
The class LocationField renders a form field with map (from google maps) and a mark. It allows the user to drag the mark to point at some particular location, whose value (lat, lng) is saved in a hidden field. It requires jquery and google maps.
- newforms
- forms
- gis
- field
- maps
- widget
Test runner with coverage
A replacement test runner which outputs a coverage report after the tests. Simply change your ``TEST_RUNNER`` setting to point to ``run_tests_with_coverage`` and you're good to go. Note that 'as-is' this snippet reports the coverage of all modules underneath the app, by walking the directory tree and loading all of the .py modules (this may be a naive approach). If you change it to use `get_coverage_modules()` instead, it will only display the coverage of modules that have been imported by the test suite, using the Python `inspect` lib, which may be more reliable. Uses [coverage.py](http://nedbatchelder.com/code/modules/coverage.html). Based on ideas from: [1](http://www.thoughtspark.org/node/6), [2](http://blogs.23.nu/c0re/stories/15428/) and [3](http://siddhi.blogspot.com/2007/04/code-coverage-for-your-django-code.html)
- test
- runner
- coverage
Silk icon tags
This simple template tag can be used to add famfamfam's silk icons easily to any element in your template.
- templatetags
- icons
- silk
Astrological sign theme filter
I returns the astrological sign. http://en.wikipedia.org/wiki/Zodiac
- astrological-sign
filtered ModelChoiceField queries
ModelChoiceField allows you to use filtered queries to simplify your forms. This is great for adding objects but can fall down when you edit an existing object and the original query no longer contains the referenced field (e.g. I like to use an "active" field in several objects). The fix is simply to include an extra param: Q(pk=object_id). You have to do this in the __init__ method to get the object_id. A nice thing about this is that it works for ModelForms as well as custom Forms.
- newforms
- modelchoicefield
- modelform
DRY with common model fields (another way)
Some time you want to add some common fields to a group of models, for example, in a **Generalization/Specialization** relationship. One could have a base model as the generalization class and specialized models with a foreign key to that base model with an unique attribute but I don't like it that way so, I just do this code to add some commons attributes to a lot of models. If you have many models that all share the same fields, this might be an option. The fields are added directly to each model, e.g. while they will be duplicated on the database level, you only have to define them once in your **python** code. This code is a cleaner way(I think!!!) to do it and will do the same that [this one](http://www.djangosnippets.org/snippets/317/). I hope this piece of code will be useful for you.
- models
- model
- dry
- common
Django Model Inheritance
This snippet shows an alternative and interesting way to do Model Inheritance in Django. For description of the code, follow the inline comments.
- model
- inheritance
collectmedia command: Copy or link media files from installed apps
This management command discovers media files from all `INSTALLED_APPS` (or the apps you specify) and copies or links them to `MEDIA_ROOT`. Put this code in a file like so: yourapp/management/commands/collectmedia.py ...and don't forget the necessary `__init__.py` files. This command includes an interactive mode (`-i` or `--interactive`) and a dry run mode (`-n` or `--dry-run`) for previewing what will happen. See `manage.py help collectmedia` for more options.
- media
- management
- command
Use the primary key in FileField and ImageField filenames
Sometimes it is desirable to use values like the primary key when naming `FileField` and `ImageField` files, but such values are only available after saving the model instance. This abstract class implements a two-phase save in order to make this case easy. See the example in the docstring. Another solution would be to write a `save()` that requires `upload_to` to be a callable that checks for `instance.pk`, then calls it again after saving. However, this would require more work from the developer for simple cases.
- imagefield
- filefield
- rename
- upload_to