On Dec 29, 9:02 pm, garagefan <monkeygar...@gmail.com> wrote:
> below is the code... the first def doesn't return anything... (def
> get_gal_teaser(self))
> i'm using a custom tag to return the Gallery class to the base
> template file, which works... so calling the method get_gal_teaser
> works as well... and returns an object? when the second e =
> e.image.get_thumbnail_url() is not there... ie this is returned:
> [<ImageUpload: image 1>]
>
> i want to return, obviously from above, the get_thumbnail url method
> so i can work with html/css to display it nicely in a secondary nav
>
> class Gallery(models.Model):
> name = models.CharField(max_length=200)
> descrip = models.TextField()
> gallery_id = models.AutoField(primary_key=True)
>
> def get_gal_teaser(self):
> e = ImageUpload.objects.filter(gallery = self.gallery_id)[:1]
> e = e.image.get_thumbnail_url()
> return e
>
> def __unicode__(self):
> return u'%s ' %(self.name)
>
> class ImageUpload(models.Model):
> title = models.CharField(max_length=200)
> image = models.ImageField(upload_to = 'gallery')
> gallery = models.ForeignKey('Gallery')
>
> def save(self):
> super(ImageUpload, self).save()
> if self.image:
> tsize = 150,150
> path = settings.MEDIA_ROOT + self.image.name
> img2 = Image.open(path)
> img2.thumbnail(tsize, Image.ANTIALIAS)
> img2.save(self.get_thumbnail_path())
>
> def get_thumbnail_path(self):
> path = settings.MEDIA_ROOT + self.image.name
> return self.convert_path_to_thumbnail(path)
>
> def convert_path_to_thumbnail(self, path):
> basedir = os.path.dirname(path) + '/'
> base, ext = os.path.splitext(os.path.basename(path))
> th_name = base + "_tn"
> th_name += ext
> return urlparse.urljoin(basedir,th_name)
>
> def get_thumbnail_url(self):
> path = settings.MEDIA_ROOT + self.image.name
You haven't clearly explained what the problem is, but there are two
issues here.
Firstly, get_gal_teaser method as written could not work. This slice -
[:1] - returns a list containing one item, so at that point e is still
a list. So e.image would fail.
To make this work as written, just drop the colon.
e = ImageUpload.objects.filter(gallery = self.gallery_id)[1]
Now e is a single ImageUpload object, and e.image will work.
Secondly, the get_thumbnail_url method on ImageUpload does not return
anything. You set the variable 'path', but don't return it. Add this:
return path
at the end.
--
DR.
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