scenario: users are uploading documents (e.g. images, files, ...).
these documents are saved in a model "Attachment" assigned to the
currently logged-in "User". now, every user has the possibility to
attach documents to a blog-entry. these attachments are saved in a
model "BlogEntryAttachment" assigned to a "BlogEntry".
the best way to achieve this is probably using formsets. when writing
a BlogEntry, the user has the option to attach his/her documents to
that BlogEntry. to achieve this, I have to limit the choices (of a
select-field) to the currenlty logged-in User.
questions & notes:
### how can I limit the choices of a select-field using formsets?
### I've tried inlineformset_factory, but there's no argument
"initial". besides that, I´m not sure how to use "initial" for
limiting a queryset ...
### with using formset_factory on the other hand, I could use a
ModelChoiceField with queryset=Attachment.objects.filter(user=user),
but how do I get the "user" there?
### Overriding __init__ within BlogEntryAttachmentForm and passing the
currently logged-in user seems possible, but then I also have to
override the BaseFormSets __init__ and _construct_form, which just
seems ugly and far too complicated.
MODELS:
class Attachment(models.Model):
user = models.ForeignKey('auth.User')
title = models.CharField('Title', max_length=100, blank=True,
null=True)
filename = models.CharField('Filename', max_length=100,
blank=True, null=True)
path = models.CharField('Path', max_length=200, blank=True,
null=True)
...
class BlogEntryAttachment(models.Model):
blogentry = models.ForeignKey(BlogEntry)
attachment = models.ForeignKey(Attachment)
....
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