Hi! I actually now have a (as it seems) working version of my first approach, just using _setObject() etc. which even works recursively. Has this some drawbacks except it looks a bit like a hack due to the call of commit()? I also have the deserialization working and basically it's just a copying between two ZODBs I'd say.
On Wed, Jun 11, 2003 at 10:12:46AM -0400, Shane Hathaway wrote: > Christian Scholz wrote: > > I then detected the fascades in io.py which I tried to use (dunno if they're > > thought to be used for such a purpose actually ;-): > > > > root_mapper, conns = createMapper(fspath) > > ei=ExportImport(root_mapper,conns) > > ei.exportObject(object) > > This is *exactly* the purpose ExportImport is meant for, but it's quite > new and unfinished. I'm glad you found it, although it's only in CVS, > not in the released version of Ape. Well, I am looking a bit on the repository and was reading log messages ;-) > > Unfortunately this results in an exception > > > > Type: MappingError > > Error Value: Path keychains require a name > > > > So can maybe somebody point me to the easiest way to serialize an object > > using the fsmapper (Shane? ;-) ? > > You're on the right track. I wonder what went wrong. I looked into that a bit and in core/io.py line 316 you do return kgen.makeKeychain(event, None, 1) so name is None here as it seems. I just dunno if it's a special case because I was doing something wrong or not ;-) > > I am also interested in reading a serialized object from the fs again > > and writing it to the fs. Also I wonder if I need to delete objects which > > have been modified before another export or if there's a possibility to > > just change it). > > Ape will assign new OIDs on import, so you don't have to delete objects > first. Well, at least with my first approach I need to do that because I just do a folder._setObject() and this fails then of course. > > (and the best would be of course some simple methods for reading/writing > > a whole directory recursively. I don't know if something like this is already > > in there somehow or how it works internally.. seems all a bit magic to me ;-) > > Again, ExportImport is designed to do this. Will it also do it recursively? I found out that when I do it via folder._setObject() it will also serialize all content which is quite nice :) What is actually the result of an export? Where in the fs is it stored then? Is the whole path to the object in ZODB is taken ? But thanks for the answer and thanks for Ape! :) -- christian -- COM.lounge http://comlounge.net/ communication & design [EMAIL PROTECTED] _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )