[Zope] howto sql-query directly from my products methods?

[Joel Burton]

On Mon, 4 Mar 2002, hans wrote:

> well, i could instantiate a bunch of zsql methods, each with
> its own query and then call them from my products methods.
> but how could i obviate the need to have these zsql methods
> and query directly? Or is it just not worth it?
> thx hans

Either:

. write a single ZSQL method with the text <dtml-var SQL_statement>
and put a prewritten SQL_statement var in the param list for the
ZSQL method.

or

. WRite a Py external method that queries the DB and returns the results


#1 is a tiny bit of hack but works fine, can still use ZSQLMethods
caching, etc. It just gives you a chance to move some of the
SQL-statement-crafting logic elsewhere rather than in DTML-in-ZSQMethod.

#2 is too low-level for my tastes: it would need to be edited for
different databases, wouldn't be cached like ZSQL Methods, etc.


 --

Joel BURTON  |  joel@joelburton.com  |  joelburton.com  |  aim: wjoelburton
Independent Knowledge Management Consultant