Accessing a beaker session object from within Deform fileuploadWidget's tmpstore

[tonthon]

Hi,

I'm building a FileUploadTempStore to handle file upload with deform and
I'm wondering how to access my beaker session object.

It works using :
session = pyramid.threadlocal.get_current_request().session

But since I ""shouldn't abuse thread locals"", I'm wondering how I
should do ?

Cheers

--
TJEBBES Gaston
Majerti
http://www.majerti.fr

[Jeff Dairiki]

On Fri, Apr 06, 2012 at 08:54:40AM +0200, tonthon wrote:
> I'm building a FileUploadTempStore to handle file upload with deform and
> I'm wondering how to access my beaker session object.
>
> It works using :
> session = pyramid.threadlocal.get_current_request().session
>
> But since I ""shouldn't abuse thread locals"", I'm wondering how I
> should do ?

Use a deferred to construct the FileUploadWidget. See

http://docs.pylonsproject.org/projects/colander/en/latest/binding.html

Here's an (untested and incomplete) example:

@colander.deferred
def deferred_upload_widget(field, bindargs):
request = bindargs['request']
session = request.session
tmpstore = MyTmpStore(session)
return deform.widget.FileUploadWidget(tmpstore)

class MyUploadSchema(colander.Schema):
upload = colander.SchemaNode(deform.FileData(),
widget=deferred_upload_widget)

upload_schema = MyUploadSchema()

then, in your view logic (where you have access to the request object):

schema = upload_schema.bind(request=request)
form = Form(schema, ...

Jeff

[tonthon]

That's the way I had finally chosen.
Thanks for your answer.

Regards

2012/4/7 Jeff Dairiki <dai...@dairiki.org>