Thank you all for the precious ideas! I made some changes and just about to
get the result. :D
Thank you again!
On Mon, Nov 4, 2013 at 6:22 PM, Tom Evans <tevans...@googlemail.com> wrote:
> On Sun, Nov 3, 2013 at 8:23 PM, Aamu Padi <aamup...@gmail.com> wrote:
> > How to make a model with a yes/no field, if yes that particular object
> > (image) will be used as the background, and no other image will be
> selected.
> >
> > I have come with this model:
> >
> > class BackgroundImage(models.Model):
> > user = models.ForeignKey(user)
> > caption = models.CharField(max_length=200)
> > image = models.ImageField(upload_to=get_upload_file_name)
> > using_image = models.BooleanField()
> >
> > But with this I can select all of them, and not only one.
> >
> > Lets take an example of profile picture. A user can have many images,
> but he
> > can only select one as a profile picture. So, that if he selects one, the
> > other will be un-select itself.
> > Hope everybody understood what I mean. Please ask me if didn't
> understood.
> > Also please correct me if my model is not correct. Thank you!
> >
>
> User can have many images, but only one profile image:
>
> class User:
> profile_image = ForeignKey('BackgroundImage', blank=True, null=True)
> # other fields
>
> class BackgroundImage:
> owner = ForeignKey('User')
> # other fields
>
> # get a profile pic
> image_url = user.profile_pic and user.profile_pic.image.url or ''
>
> # set a new profile pic
> image = BackgroundImage(....)
> user.profile_pic = image
> user.save()
>
> User can have many images, but only one profile image, without
> modifying user model
>
> class User:
> # other fields
>
> class BackgroundImage:
> owner = ForeignKey('User')
> # other fields
>
> class UserBackgroundImage:
> user = OneToOneField('User')
> profile_picture = ForeignKey('BackgroundImage')
>
> # get a profile pic
> image_url = user.userbackgroundimage and
> user.backgroundimage.profile_picture.image.url or ''
>
> # set a new profile pic
> image = BackgroundImage(....)
> user_image, created =
> UserBackgroundImage.objects.get_or_create(user=user,
> defaults={'profile_picture': image})
> if not created:
> user_image.profile_picture = image
> user_image.save()
>
> Cheers
>
> Tom
>
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