A "fake" model field which is an alias to another underlying database field. Mirrors everything including queryset lookups, instance attributes, even if the field has been used on the model already (this isn't possible just by using db_column).
This snippet provides a @group_required decorator. You can pass in multiple groups, for example: @group_required('admins','editors') def myview(request, id): ... Note: the decorator is based on the snippet [here](http://fragmentsofcode.wordpress.com/2008/12/08/django-group_required-decorator/) but extends it checking first that the user is logged in before testing for group membership - [user_passes_test](http://docs.djangoproject.com/en/dev/topics/auth/#django.contrib.auth.decorators.user_passes_test) does not check for this by default. It is important to check that the user is first logged in, as anonymous users trigger an AttributeError when the groups filter is executed.
Consistency check on file fields between database and filesystem
This is an example of a view that returns an Excel spreadsheet; the last ~7 lines are the relevant ones. It relies on Excel's ability to automatically import HTML (see http://support.microsoft.com/kb/165499 for more info). The spreadsheet.html template is just has one big `<table>` tag with all the data as table cells (no `<html>` or other surrounding tags are necessary).
An Image says more than 100 words: [readonlytabularinline.png](http://img39.imageshack.us/img39/6555/readonlytabularinline.png) Use `editable_fields` to exclude some fields from being readonly.
Adds drag-and-drop ordering of rows in the admin list view for [Grappelli](http://code.google.com/p/django-grappelli/). This is based on [Snippet #2057](http://djangosnippets.org/snippets/2057/) and fixes some bugs as well as switching to jQuery/jQuery UI provided by Grappelli. No additional files need to be installed. The model needs to have a field holding the position and that field has to be made list_editable in the ModelAdmin. The changes of the ordering are applied after clicking 'Save'.
This allows you to order the models on the index page of the administration site in a custom way. This modification goes in the index method of django.contrib.admin.sites.AdminSite. I personally monkey patched it in where my models are loaded and registered with the admin site. Be careful that if you add new models you update the sorting dictionary, else you will get a key error. If no sorting is defined for an app, it will default to alphabetical order. Note that you'll probably want to also insert this into the app_index function as well. --- If you like my work, please check out my employer's site at 829llc.com - Dan
Makes models orderable on the change list page of the admin using drag and drop with jQuery UI (via sortable()). So you can order your objects in more easy way. Inspired by snippets [#1053](http://djangosnippets.org/snippets/1053/) and [#998](http://djangosnippets.org/snippets/998/) First, ordering field to your model (default called 'order). You can specify other name for this field, but you should add 'order_field' attr to model (i.e order_field = 'your_new_order_field_name') Also, snippet adds 'order_link' field to admin's changelist and hides it by javascript.
Having spent ages trying out various admin inline ordering packages and examples I found on here and elsewhere I failed to find a single one that did what I was after in the way I wanted or that worked, so I wrote one! The general idea for this version was to be done purely in javascript, no additional methods or parameters required on your models, it's designed to be stuck in a js file and included in your admin class Media js parameter: class Media: js = ['js/admin/widget_ordering.js', ] Your model should have an integer column for sorting on, the name of this column should go in the 'sort_column' parameter at line 3 and your model should also obviously specify this in it's Meta 'ordering' class: class Meta: ordering = ('rank',) That's it! This is a pretty basic implementation that adds simple up and down buttons next to the sort order field, if you want to adapt this to use drag and drop or something, please feel free!
class ImageInline(TabularInline): formfield_overrides = { models.ImageField: { 'widget': ImageWidget }, }
GEOSGeometry.buffer() accepts a distance argument which is in the unit of the coordinate reference system of the geometry. It is often necessary, however, to specify the buffer size in a more down-to-earth coordinate system, for example meters. with_metric_buffer(geom, buf_size) implements this functionality.
This snippet allows you to use the CommaSeparatedIntegerField to store a set of integers that correspond to a set of choices. There are a couple other snippets that proclaim to do this, but they either don't work with the django 1.4, or are more complex.
1. Add this decorator to whatever function: @profile('/tmp/0123test.prof') def test_function(): pass 2. If it's a django view function, let it run once. 3. Use "runsnake" to open the ".prof" file. Sweet.
This is an example how to create a wrapping function that can read all incoming arguments, do something with them and then call the original function. This pattern works well with generic views. Note that wrapper function accepts arguments in both ways: as a list of unnamed arguments and as a list of keyword-value pairs. A real-world example: def published_object_list(request, *args, **kwargs): arg_names = object_list.func_code.co_varnames params = dict(zip(arg_names, args)) params.update(kwargs) params['queryset'] = params['queryset'].filter(is_published=True) if request.is_ajax(): params['template_name'] = "ajax/" + params['template_name'] return object_list(request, **params)
**preview_template.py** allows you to test a Django template located in the current working directory (first argument). The template is rendered with the given context (second argument, *optional*), and the result is immediately piped into the browser with the [bcat](http://rtomayko.github.io/bcat/) utility. **Usage:** python preview_template.py [template name] [context] **Example:** python preview_template.py template.html "{'username': 'Његош'}"