detailed examples are for hard things AND people not willing to experiment
:-P
it's pretty simple.
Given a table with
Field('contents', 'upload')
any submitted form will have "contents" as a FieldStorage (standard wsgi
behaviour). The real deal (or, "the nifty trick") is checking BEFORE
form.process().accepted (if you're not using your own form, which should
have been more fun ;-)) what is coming along.......
So, you add
Field('contents_size', 'integer')
Field('contents_filename', length=512)
and you'd like to store the file size and the original filename....
Any piece of code happening AFTER form.process().accepted for a SQLFORM
have done already the insertion at the database level. So you must
intercept what you need just before it. SQLFORM won't hide contents_size
and contents_filename by default, so the other piece of the nifty trick is
remembering that you should set them as hidden by setting writable=False on
them.
>From there on, it's pretty easy.
form = SQLFORM(db.tablename)
filesize_ = len(request.vars.contents.value)
filename_ = request.vars.contents.filename
form.vars.contents_size = filesize_
form.vars.contents_filename = filename_
if form.process().accepted:
blablabla
On Wednesday, January 13, 2016 at 7:22:19 PM UTC+1, Alex Glaros wrote:
>
> am having trouble finding detailed examples. Can you please help with
> syntax?
>
> Am determining size when uploading a user's photo (thumbnail) to their
> profile:
>
> if form.process().accepted:
> session.flash = 'profile update accepted'
> file_info = cgi.FieldStorage(form.vars.thumbnail)
> form.vars.file_size = len(file_info)
>
> the goal is to populate field file_size with number of bytes the file
> contains
>
> but the above raises errors
>
> thanks
>
> Alex
>
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