On Mon, 2010-05-24 at 21:33 -0700, Mark Phillips wrote: > I am reading the zope 2 book (relational database section) and it > talks about binding classes by putting them in the Extensions > directory and then associating them with a Z SQL Method. That seems to > be rather straight forward, but where can I find some examples of > accessing the values returned from the Z SQL Method in Python. For > example, > > Z SQL Method > select * from offense where gameID=<some input value from a form> > > This returns ~10 rows. Each row has columns playerID, PB, BB, SacBunt, > HBP as well as other columns, all containing integer values. > > class GameStats > """Reads the database for the stats for every player in a game and > calculates the stats""" > > def AtBat(self, player_id): > """Calculate the AB for a player. AB = PA - (BB + SacBunt + > HBP - SF)""" > How do I get the columns PA, BB, etc for a particular playerID > to calculate the BA from the result returned by the Z SQL method? Is > there some documentation for how to access the results of the query > within this class?
Individual columns should be accessible as attributes of the Brain object, eg. self.playerID etc. If there's a column PA, it should be named self.PA. Btw., usually when I'm in doubt which attributes or methods are available for a given object, I just put a breakpoint at the location in question and poke at it with pdb, the Python debugger. See eg. http://wiki.zope.org/zope2/DebuggingWithPdb , under "breakpoint in the code" how to invoke the debugger. See http://docs.python.org/library/pdb.html for pdb docs. hth, peter. > > Thanks! > > Mark > _______________________________________________ > Zope-DB mailing list > Zope-DB@zope.org > https://mail.zope.org/mailman/listinfo/zope-db
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