On May 8, 6:49 am, Adrian von Bidder <[email protected]> wrote:
> On Friday 08 May 2009 01.20:43 Derick Eisenhardt wrote:
>
> > I'd assume you would just want to use an upload widget...either from
> > Tosca Widgets or your favorite Javascript library?
>
> I created a form with FileField from tw. (I've not looked into js libraries
> and all this yet, I'm just trying to get a very basic app.)
>
> As I've said, the template part is not the problem, but I can't easily find
> an example for how to do the controller.
Because I spent ages looking for an example last week (and eventually
found one in japanese, which I had
to translate with google!), here's one that worked for me...
###############################################################################
# EXAMPLE OF CONTROLLER
# all necessary tg imports beforehand
from tw.forms import FileField
class UploadYourFoto(TableForm):
class fields(WidgetsList):
my_file = FileField(label_text='Your Foto')
submit_text = 'Upload Foto!'
upload_foto_form = UploadYourFoto
("upload_foto_form",action='save_file')
class RootController(BaseController):
@expose('yourapp.templates.upload')
#...@require(predicates.in_group('members',msg=l_('Only for
members!')))
def upload(self,**kw):
tmpl_context.form = edit_profile_form
return dict(page="Upload")
@expose() # don't expose this
def save_file(self,**kw):
"""
JFYI - there are a few useful properties of the request.POST
['your_file'] which you could use
- things like:
request.POST['your_file'].type : a string with something like
'image/jpeg'
request.POST['your_file'].size : the filesize of e.g. yiur
uploaded image
"""
target = "/tmp/my_uploaded_file.jpg"
if request.POST.has_key('my_file'):
if request.POST['your_file'].file:
try:
fd = open(target,'w')
fd.write(request.POST['your_file'].file.read())
fd.close()
except Exception,e:
flash("Horrible exception: %s"%str(e))
else:
flash("It worked! File saved to %s"%target)
redirect('/upload') # back to upload to upload
another?
#################################################################
#################################################################
# EXAMPLE OF TEMPLATE
!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-
transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml";
xmlns:py="http://genshi.edgewall.org/";
xmlns:xi="http://www.w3.org/2001/XInclude";>
<xi:include href="master.html" />
<head>
<meta content="text/html; charset=UTF-8" http-equiv="content-type"
py:replace="''"/>
<title>Upload a foto?</title>
</head>
<body>
<div py:replace="tmpl_context.form()">Upload Foto (this text
doesn't get shown)</div>
</body>
</html>
##############################################################################
>
> Ideally, I could get information from the request before the whole thing is
> loaded into memory (my example/playground app is a image gallery, so when I
> upload 20 pictures via a upload form, or even just a 100M TIFF because I'm
> crazy, there is no excuse for the web server to grab this much RAM. Ever.
> (Imagine 50 users doing this at he same time ...)
>
> (... yes, I'm kind of old fashioned ... last time I played with web
> technologies, I wrote it as a Perl cgi program and parsed the requests for
> myself ...)
>
> -- vbi
>
>
>
> > On May 7, 11:59 am, Adrian von Bidder <[email protected]> wrote:
> > > On Sunday 05 April 2009 21.42:32 Daniel Fetchinson wrote:
> > > > > Thanks in advance
>
> > > >http://lmgtfy.com/?q=turbogears+file+upload
>
> > > You know, learning tg while commuting by train (this means not beng
> > > online) is a PITA sometimes. :-)
>
> > > [[ I'm online now. Well, lmgtfy. How funny. ]]
>
> > > #1: right now, it's difficult for a beginner to sort tg1 and tg2 in
> > > Google's search results and judge what is still relevant in the latter.
>
> > > #2: this shouldn't be a case for google. File uploads are fundamental.
> > > Is there work to convert the file upload tutorial from 1.0 to 2.0?
>
> > > Since I'm just learning both python and tg, it's kind of hard for me to
> > > build the proper stuff. So: pointers for tg2 very welcome. Quick and
> > > dirty for now is ok, since I'm just fooling around, but as I want to
> > > learn this properly, file uploads for me immediately beg the question:
> > > how to do them without having to load the full file into memory?
>
> > > cheers
> > > -- vbi
>
> > > signature.asc
> > > < 1KViewDownload
>
> > >
>
>
> signature.asc
> < 1KViewDownload
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