On 03/07/2008, at 11:23 AM, David Melton wrote:
>
> I would like to be able to change the status of an item (Yes/No Field)
> in a list of items from the change-list view without having to open
> the item and change it within the change form. Is there an easy way
> (built in) to the Django admin framework to allow this?
Hi David,
You can do this quite easily by adding a custom column to the admin
list. You don't need to change any admin templates for this.
It looks something like this:
In models.py:
def boolean_switch(field):
def _f(self):
v = getattr(self, field.name)
url = '%d/%s/switch/' % (self._get_pk_val(), field.name)
return '<a href ="%s"><img src="/media/img/admin/icon-
%s.gif" alt="%d" /></a>' % (url, ('no','yes')[v], v)
_f.short_description = field.verbose_name
_f.allow_tags = True
return _f
class MyModel(models.Model):
name = models.CharField()
featured = models.BooleanField()
featured_switch = boolean_switch(featured)
featured_switch.admin_order_field = 'featured'
class Admin:
list_display = ['name', 'featured_switch']
In views.py:
from django.db.models import get_model
from django.http import HttpResponseRedirect
from django.shortcuts import get_object_or_404
from django.core.exceptions import PermissionDenied
def switch(request, url):
"""
Set/clear boolean field value for model object
"""
app_label, model_name, object_id, field = url.split('/')
model = get_model(app_label, model_name)
if not request.user.has_perm('%s.%s' % (app_label,
model._meta.get_change_permission())):
raise PermissionDenied
object = get_object_or_404(model, pk=object_id)
setattr(object, field, getattr(object, field) == 0)
object.save()
msg = '"%s" flag changed for %s' % (field, object)
request.user.message_set.create(message=msg)
return HttpResponseRedirect(request.META.get('HTTP_REFERER',
'/'))
In urls.py, add this line before '^admin/':
url('^admin/(?P<url>.*)/switch/$', 'switch', name='switch'),
That should do it... I actually keep all this code in a separate app
so I can apply it to any boolean field by just importing
boolean_switch and including a urls module.
Itai
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