On Fri, 2004-10-08 at 10:37 +0159, Matthias Teege wrote:
> I try to read an image from a database but I've problems with the
> type. I don't have problems to create a pixbuf from file but if I try
>
> pixbuffer = dbres[5] # a postgresql bytea field
>
> I get TypeError: pixbuf should be a GdkPixbuf or None.
>
> I understand the error but I don't know how to solve this problem. How
> do I assign an image from a database to a pixbuf?
Depends - what is stored in the database? If the data in the database is
PNG/GIF/JPEG encoded data, you need to decode it to a pixbuf.
If you store a "raw" pixbuf in the database, you must serialize the
pixbuf (convert it to a byte-stream) before storing it in the database,
and deserialize when fetching it. This can be done with
gdk_pixdata_serialize() (don't know if it's available in pygtk), or I
believe you can also use Python's pickle system for this.
Never tried any of this in practice, tough - anyone else care to
comment?
--
Erik Grinaker <[EMAIL PROTECTED]>
"We act as though comfort and luxury were the chief requirements of
life, when all that we need to make us happy is something to be
enthusiastic about."
-- Albert Einstein
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