djangoskel
Sometimes i like to try things out in a blank django project, so i created a python script which creates an out of the box working project skeleton for me: $ djangoskel.py project_name
- project
- skeleton
Snippet List
Passing values to a method from a template
A simple trick to let a function be called with exactly ONE argument from a Django template, by passing it via an attribute. Example: class SearchResult(object): @template_callable def highlighted(self, field): return self._xappy_result.highlight(field) result = SearchResult() result.highlighted.title {{ result.highlighted.title }}
- template
- templates
- method
- call
- arguments
Raise Exception on invalid template variable
This recipe raises an exception if there is an invalid variable in the template. See [#6766](http://code.djangoproject.com/ticket/6766) Note: I don't need this snippet any more, since I don't use the template language any more. For my projects using only python is better (complex logic, simple layout).
- template_string_if_invalid
CustomChoiceField, Selectable label field version of ModelChoiceField
**The problem** ModelChoiceField always uses __unicode__ or __str__ to fill the labels. I needed to dynamically select which field to use for the labels. **The solution** My approach copies a lot from [this blog](http://oebfare.com/blog/2008/feb/23/overriding-modelchoicefield-labels/) with some modifications to make it more dynamic. There are some proposals to fix on this [Ticket #4620]( http://code.djangoproject.com/ticket/4620) **How to use** Include the code on your forms.py (or whatever you are using) and use the CustomChoiceField with the extra argument label_field instead of ModelChoiceField. Hope it helps someone.
- newforms
- forms
- modelchoicefield
- modelform
local_settings override for project settings
Place this snippet at the bottom of your settings.py file, and if a local_settings.py file is present in the directory, all settings in that file will override those in settings.py
- settings
Newforms field for decimals with a comma
This might be handy in countries where decimals are entered with a comma separating the decimal places from the integer part (for instance in Germany). It lets user enter and displays all decimals with a comma separator. I ran into this problem and couldn't find a clean internationalized way of doing it... but newforms makes it so easy to roll your own. Hope it helps someone.
- newforms
- locale
- comma
- decimal
chdjango
This is a convenient script for those working with different branches of Django. Place all of your branches in `~/django` (e.g., `~/django/newforms-admin`, `~/django/trunk`) and you're ready to quickly change between them. For example: `chdjango.py trunk`.
- django
- path
- change
- chdjango
- branches
- pth
- site-packages
Q marshaller
Django supports the serializing model objects, but does not support the serializing Q object like that, ============================ q = Q(username__contains="findme") model0.objects.filter(q) serialize(q) # X ============================ so I wrote a little marshaller for Q, this is example, ============================ from django.contrib.auth import models as django_models qs = django_query.Q(username__contains="spike") | django_query.Q(email__contains="spike") _m = QMarshaller() a = _m.dumps(qs) # a was serialized. When call the similiar queries in page by page, you don't need to write additional code for creating same Q(s) for filtering models, just use the serialized Q as http querystring and in the next page unserialize and apply it. That is simple life.
- model
- python
- q
- query
Log errors to a file
This is another example use of the [exception middleware](http://www.djangosnippets.org/snippets/638/). It shows how to log exceptions to a file. Someone wanted to do this to avoid DOS-ing the email server in case of a silly error. (untested.)
- middleware
- log
- error
- exception
- file
Extensible exception handling middleware
This exception middleware abstracts the functionality of the builtin exception handling mechanisms, but makes them extensible by inheritance. Just add it (or some subclass) to the top of your active middleware list. You can use this to [make your admin emails more informative](http://www.djangosnippets.org/snippets/631/) or [log errors to a file](http://www.djangosnippets.org/snippets/639/).
- middleware
- exception
Augmented TimeField
A TimeField that lets you parse a wide variety of freeform-text time descriptions. This doesn't inherit from TimeField because it doesn't use any of its functionality. Includes unit tests demonstrating some examples of what the parser will and won't handle.
- newforms
- timefield
Updated FileField / ImageField with a delete checkbox
Example model: class MyModel(models.Model): file = RemovableFileField(upload_to='files', \ null=True, blank=True) image = RemovableImageField(upload_to='images', \ null=True, blank=True) A delete checkbox will be automatically rendered when using ModelForm or editing it using form_for_instance. Also, the filename or the image will be displayed below the form field. You can edit the render method of the DeleteCheckboxWidget or add one to RemovableFileFormWidget to customize the rendering. UPDATE: 5. April 2009. Making it work with latest Django (thanks for the comments).
- newforms
- models
- imagefield
- filefield
- remove
- delete
create_update for newforms (ModelForm)
Based on [danjak's](http://www.djangosnippets.org/users/danjak/) [snippet](http://www.djangosnippets.org/snippets/99/) but updated to use ModelForms - so can easily handle generic CRUD operations. A replacement create_update.py for use with ModelForm create_object and update_project modified to handle newforms (including FileFields) with ModelForm - it also had delete_object as well for completeness. In addition, it has some extras: * extra_fields - this is a dict or callable that contains additional fields to be passed to the form, for example stuff that is in the session. * on_success - callback called if form is valid and object created/updated, if this is not set the default behaviour is to send a redirect * on_failure - callback called if form is invalid, the default is to redisplay the form. Note that once newforms are finally done these functions are likely to be redundant, as generic views will be updated to use the newforms API, so use with caution!
- newforms
- forms
- generic-views
- modelform
Mask sensitive POST fields in error e-mails
For PyCon we have our crash messages go to a mailman group so that people working on the site would be aware of issues. This saved us many times. But sensitive information would some times come up such as login passwords and fields we did not want going on the list. the solution was to mask these POST fields when an exception occurs and is being handled. This is simple drop-in code which will mask the values of POST arguments which contain keywords (such as 'password', 'protected', and 'private').
- exception
- handler
CSVImport
Importing data from other sources than SQL can be an annoyance. This script serves as a general tool for importing data from CSV files.
- csv
3110 snippets posted so far.