On Thu, May 14, 2009 at 6:48 AM, phoebebright <phoebebri...@spamcop.net> wrote:
>
> Have been at this now for some hours and still can't see the wood for
> the trees. Failed to get two signals working - one called on pre_save
> to keep an audit trail of one field on a model (didn't implemenet the
> Audit.py version in the wiki as more complex than I needed). The
> other to create some default records in a related table. Both are
> failing with the same error and I suspect I am going to kick myself
> when someone points out the obvious, but here goes.
>
> Model.py
>
> (simplified)
>
> class Version(models.Model):
>
> version_no = models.CharField(_('ver'), max_length=10, unique=True)
> name = models.CharField(_('name'), max_length=50, unique=True)
>
> class VersionDocs(models.Model):
>
> version = models.ForeignKey('Version')
> doc_content = models.TextField(_('content'))
>
>
> class VersionDocsVer(models.Model):
>
> doc = models.ForeignKey('VersionDocs')
> doc_content = models.TextField(_('content'))
>
>
> pre_save.connect(keep_version, sender=VersionDocs)
> post_save.connect(default_docs, sender=Version)
>
>
>
> signals.py
>
> (simplified)
>
> from devcycle.models import *
>
> def default_docs(instance, **kwards):
>
> try:
> doc = VersionDocs.objects.filter(version=instance.id)
>
> except:
>
> ....
>
> def keep_version(instance, **kwargs):
>
> print 'version instance =',instance.id
> original = VersionDocs.objects.get(id=instance.id)
>
> ....
>
>
>
> Using Django version 1.1 beta 1,
>
>
>
>
>
> >
>
What error were you getting?
Those signals both take a "sender" argument as the first instance, so
you might try something like:
def keep_version(sender, instance, **kwargs):
....
"Sender" will be class of the model that's being saved.
Colin
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