[Zope] Re: PIL: can't call same method twice

[KLEIN Stéphane]

Chris Withers a écrit :
> Chris wrote:
> 
>> Hi David,
>>
>> this is not the problem (tried it before).
>>
>> The code
>> foo  = container.resize(context.REQUEST.image, size=size) # works nicely
> 
> 
> at this point, try inserting:
> 
> context.REQUEST.image.seek(0)
> 
>> foo  = container.resize(context.REQUEST.image, size=size) # 2nd time 
>> ->error
>> does what you suggest. But it raises the same error.
> 
> 
> cheers,
> 
> Chris
> 
I've the same problem and now it's work with this tip : 
"context.REQUEST.image.seek(0)".

My xImageScale.py [external method] is :

def xImageScale(img_file, maxx, maxy):
	from PIL import Image
	from cStringIO import StringIO
	img_file.seek(0)
	im = Image.open(img_file)
	im.thumbnail((maxx, maxy), Image.ANTIALIAS)
	out_file_str = StringIO()
	im.save(out_file_str, im.format)
	out_file_str.seek(0)
	tmp=out_file_str.read()
	out_file_str.close()
	return tmp

-- Stéphane