[Zope] Displaying BLOB's with Zope

[Martin Gebert]

Mark Evans schrieb:

>[...]
>

><img src=&dtml-blobtest;>
>
>[...]
>


>Created a python script called 'retrieveImage':
>
>    photo = context.getImage()
>    container.REQUEST.RESPONSE.setHeader('content-type', 'image/jpeg')
>    return  photo[0].image
>
>which calls the ZSQL method 'getImage':
>
>    select image from blobtest
>    where id='1'
>
>When I click on the 'test' tab for the python script, I get the following
>message:
>The image "http://foo.com/blobtest2/retrieveImage" cannot be displayed, because
>it contains errors.
>
>What am I missing here?  Thanks in advance for the help.
>  
>
The message basically means that the returned data isn't exactly what 
was expected. Two things come to my mind:

1. What if you involve the retrieveImage script similar to the 
description in the said HowTo (last line)?
2. Is the MIME type correct - is it really a JPEG?

I can't think of other possibilities right now; I'll have another look 
tomorrow. Good night!

Martin