I forget:
from PIL import Image
On 9 Ott, 15:49, leone <handja...@gmail.com> wrote:
> Solved:
>
> if form.accepts(request.vars, session, keepvalues=True,
> onvalidation=WriteThumb):
> .........
>
> def WriteThumb(form):
> i = cStringIO.StringIO()
> o = cStringIO.StringIO()
> i.write(form.vars.imgfile.value)
> i.seek(0)
> im = Image.open(i, 'r')
> im.thumbnail((100,100),Image.ANTIALIAS)
> im.save(o,'jpeg')
> form.vars.thumbnail = base64.b64encode(o.getvalue())
> o.close()
> i.close()
>
> <img src="data:image/jpeg;base64,{{=row['thumbnail']}}"
> alt="Thumbnail photo" />
>
> On 9 Ott, 14:48, leone <handja...@gmail.com> wrote:
>
>
>
> > excuse me: onvalidation not onvalidate.
>
> > On 9 Ott, 14:20, leone <handja...@gmail.com> wrote:
>
> > > I have questions about SQLFORM onvalidate.
> > > Before inserting a row I have to resize an image by PIL and push
> > > b64encoded bytes on a blob field.
> > > So I have defined onvalidate=DoSomething in SQLFORM.
> > > DoSomething has form as input arg, resize image as thumbnails, encode
> > > it and push in form.vars.myblob
> > > (or db.mytable.myblob???).
> > > The new record is OK, but blob field is empty.
> > > Can someone orient me?
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