Le vendredi 08 décembre 2006 à 15:08 +0100, Thierry Florac a écrit : > Hi, > > I'm currently writing an image management adapter for Zope3. > It's goal is just to create and store thumbnails "on the fly" when an > image is requested with an additional specific traversal name (for > example, "myimage/thumbnail" will create a thumbnail of a given > predefined size, while "myimage/200x200" will create a copy of the > original image reduced to 200 pixels). > These thumbnails are stored in the original image annotations. > > Everything seems to work fine, except for a little thing : I've created > a specific widget so that, when an image is uploaded, a thumbnail of the > new uploaded image is immediately displayed next to the "data" field > upload button. > But when the form is displayed, a "DatabaseConflictError" is visible > into Zope's log, even if everything seems to work correctly from a > browser's point of view. > > I'm not completely sure to understand what DatabaseConflictErrors are, > so any explanation about this kind of problem would be greet. > I'll just add for your information that I'm using ZEO...
Oops !! Sorry, I found the source of my problem : it was a misconfiguration of the adapter, who was writing data in it's context each time it was called, even if the context was already "adapted". A small missing tab and conflicts are gone... Thierry Florac -- Chef de projet intranet/internet Office National des Forêts - Département Informatique 2, Avenue de Saint-Mandé 75570 PARIS Cedex 12 Mél : [EMAIL PROTECTED] Tél. : +33 01.40.19.59.64 Fax. : +33 01.40.19.59.85 _______________________________________________ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users