[Zope] picture as parameter for an external method

[Dragos Chirila]

Hi

I assume that you set the following attribute for your form tag: 
enctype="multipart/form-data".

Put a parameter in your python script called "filename" and process the 
form this way:

picture = None
if filename != ''
     if hasattr(filename, 'filename'):
         if filename.filename != '':
             picture = filename.read()

and pass the "picture" parameter which is actually the picture (bytes).

Dragos


VIGNAUX Philippe wrote:
> Hi !
> 
>  
> 
> Is there a way to pass a picture (extension JPG)  as a parameter of an 
> external method.
> 
>  
> 
> It seem to be the case as read on the internet but for me it doesn’t work !
> 
>  
> 
>  
> 
>  
> 
> My zope config :  Zope 2.6.4 (binary release, python 2.1, win32-x86), 
> python 2.1.3, win32
> 
>  
> 
>  
> 
> This is the problem :
> 
>  
> 
>  
> 
> 1) I’ve got a page template where I can choose a picture thru a « file » 
> object :
> 
>  
> 
> <input type="file" name="filename">
> 
>  
> 
>  
> 
>  
> 
> 2) This page template calls a python scripts
> 
>  
> 
> request=context.REQUEST
> 
> context.my_external_function( original_id=request['filename'] )
> 
> #context.my_external_function( request['filename'] )
> 
>  
> 
>  
> 
>  
> 
> 3) my_external_function is defined in an appropiate module in the 
> « Extensions » folder of my zope installation
> 
> def my_external_function (self, original_id):
> 
>      pass
> 
>  
> 
>  
> 
> PROBLEM :   when i run the process i get an error :
> 
>  
> 
> **exceptions.AssertionError**
> 
> Sorry, a site error occurred.
> 
> Traceback (innermost last):
> 
>     * Module ZPublisher.Publish, line 150, in publish_module
>     * Module ZPublisher.Publish, line 106, in publish
>     * Module Zope.App.startup, line 225, in abort
>     * Module ZODB.Transaction, line 135, in abort
>     * Module ZODB.Connection, line 256, in abort
> 
>  
> 
> When i configure the whole thing to pass a normal parameter (text), it 
> works normally ;  so obviously the problem is when trying to pass a picture.
> 
>  
> 
>  
> 
>  
> 
> Any idea ????
> 
>  
> 
> Thanks
> 
>  
> 
>  
> 
> Philippe
> 
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-- 
Dragos Chirila
Programmer, Finsiel ROMANIA
44A, Ficusului St. - 71544 Bucharest
Tel: +40 21 2320193
Fax: +40 21 2329807
URL: http://www.finsiel.ro
Jabber: dragos at jabber.finsiel.ro