Russ,
Perhaps you are correct. I am using 5335 patched with #3297, but guess
I just don't know how to code (or name?) the necessary method.
This explanation of what I'm doing may help:
class ToolRun(models.Model):
revision = models.IntegerField(blank=True, null=True)
project = models.ForeignKey(Project, blank=False)
tool = models.ForeignKey(Tool)
input_file = models.FileField(upload_to="/")
The form is created like this:
FormClass = forms.models.form_for_model(ToolRun)
post_data = request.POST.copy()
post_data.update(request.FILES)
form = FormClass(post_data)
The form has the 'project' and 'revision' fields hidden and
initialized. The form asks the user to enter the 'tool' and
'input_file'. Once POSTed, if the input data is valid I check in the
view for an existing ToolRun instance with matching project, tool and
input_file. If what was entered does not exist, create a new ToolRun
and upload the file. If what was entered does exist, simply upload the
(identically named) file.
clean = form.cleaned_data
try:
toolrun = ToolRun.objects.get(project=clean['project'],
tool=clean['tool'],
input_file=clean['input_file']
['filename'])
save_instance(form, toolrun)
except ObjectDoesNotExist:
toolrun = form.save()
Problems I have are threefold:
1. With either type of save I cannot seem to override the 'upload_to'
location string before the file contents are saved.
2. If a file with the same name already exists in the appropriate
'upload_to' location, I want to delete that file prior to saving the
new file.
3. I really don't want the 'upload_to' path prepended to the filename
stored in 'input_file' in the ToolRun instance.
I imagine that newforms has hooks to let me solve this, I just cannot
seem to find them. FWIW, I do have the following additional methods in
the ToolRun class:
def save(self):
# set the upload directory for the input file
for f in self._meta.fields:
if f.attname == 'input_file':
f.upload_to = "/%d/%d' % (self.project.id,
self.tool.id)
super(ToolRun, self).save()
This has no effect on where the uploaded files are stored, so I added
this "save_FOO_file" method to the ToolRun model class:
def save_input_file_file(filename, raw_contents):
# save it in the correct subdir
....
According to the debugger, this function is never called.
Thanks for your assistance!
Graham
On Jun 6, 6:41 pm, "Russell Keith-Magee" <[EMAIL PROTECTED]>
wrote:
> On 6/7/07, grahamu <[EMAIL PROTECTED]> wrote:
>
>
>
> > Does anyone here know where/how I should override the default save
> > method for a newforms-based FileField?
>
> It looks like you're looking for the functionality requested in ticket
> #3297. The patch that is there works, but probably won't be accepted
> as-is; I've been working on a slightly different patch, which I should
> be able to put up for comment tonight.
>
> However, as a stop-gap measure, the existing patch on #3297 will
> suffice. The differences between my patch and the existing #3297 are
> subtle; transitioning from using one patch to the other shouldn't be
> too onerous.
>
> Yours,
> Russ Magee %-)
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to django-users@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en
-~----------~----~----~----~------~----~------~--~---
