On Jan 13, 12:06 pm, Ty <brownellty...@gmail.com> wrote:
> I've started creating a photo blog project to get familiar with Python
> and Django. I'm using Python 2.6.1 and Django 1.0.2. I'm working on
> the models and the administration first, before I tackle the front end
> side of the site. I have everything working fine, for the exception of
> an image upload field in the administration.
>
> I assume I'm just going to have to add an "ImageField" in the model.
> That I get, however, every time a new image is uploaded I want to
> resize and save a few copies of the images for thumbnail use, and I
> don't know how to go about extending an administration form like that.
>
> I've been looking around and I've seen the save method in the model
> class. For example I'm using this to come up with the post title slug:
>
> def save(self):
> self.name_slug = re.sub('[^a-zA-Z0-9]', '_', self.name).strip
> ('_').lower()
> self.name_slug = re.sub('[-]+', '_', self.name_slug)
> super(Entry, self).save()
>
> Should I add the image manipulation code in the save method? What is
> the best way to go about this issue?
Yeah I would (and have) done that type of stuff there. See also the
documentation for the admin interface and overriding the save_model
method on admin.ModelAdmin. You can hang custom behavior there also,
if you only want that behavior when you save a model from the admin
interface.
>
> On another note, is there a good resource for image manipulation in
> Python?
I've used the PIL (Python Imaging Library) to manipulate images. Be
aware that there are other django pluggable applications that you
could use also: search for django Photologue, django-thumbs, and
django-sorl. It is fairly easy to manipulate images with PIL so I just
rolled my own. I used Photologue in a previous project, it is a
fantastic full-blown gallery app for django.
Have fun!
BN
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