-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Just a quick follow up for posterity...
On Dec 1, 2006, at 10:45 AM, Barry Warsaw wrote: > However the other thing that happens in the MailList ctor is that > we call a method InitTempVars() which gives each of the mixin base > classes a chance to set some volatile attributes (i.e. non- > persistent). On the positive side, those attributes are all non- > public and start with an underscore. The problem though is that > when SA instantiates a MailList in response to a query, my > InitTempVars() methods obviously won't get called. > > Enter the mapper extension. > > So what I really want is that the regular SA magic happens and I > just do a little work (calling InitTempVars()) either before or > after that. I'm not sure about the best way to do this. Turns out that the populate_instance() method of the MapperExtension interface is the perfect hook. I use the isnew argument to decide whether InitTempVars() needs to be called and get the requisite information from the row data. I'm still confused about the row keys though. They aren't exactly the names of the columns in my table, they are prepended with the table name, lowercased. E.g. my table is named Listdata and the columns are host_name and list_name but the keys are listdata_host_name and listdata_list_name. Is this expected? Why is it this way? Thanks, - -Barry -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iQCVAwUBRXbj53EjvBPtnXfVAQJV2QQAqScyk8KnY1m3IyciY4EGiE4904NXJ8R2 gB7m9kUEFvioCLE7QWE5VFQwrUCEEZ9vTZWAilaw1vrGbnAYjliL31XSxqNsvl01 CzjdDkyCWqClwO7snTMk+0RQ+IfScGWgHfCx5647tpuhuyNiutYtUGzJhRbhnMmM Ab7iulSfb1M= =tv1A -----END PGP SIGNATURE----- ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Sqlalchemy-users mailing list Sqlalchemy-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sqlalchemy-users
