[Twisted-web] Re: Nevow + adbapi

Luis N tegmine at gmail.com
Mon Mar 21 15:13:49 MST 2005

On Fri, 11 Mar 2005 00:15:48 +0000, Matt Goodall <matt at pollenation.net> wrote:
> On Thu, 2005-03-10 at 17:59 -0600, Luis N wrote:
> This is bad. You should not use Python's string formatting to build
> queries - pass the queries args as a tuple and let the database module 
> prepare the query:
>        return dbpool.runQuery(
>            "SELECT english FROM lang WHERE spanish LIKE %s",
>            (data,))
> In particular, this lets the database module correctly quote ''data''
> and protects you from SQL insertion problems.
> - Matt

Thank you. Now that I know how to use nevow and adbapi, I'm confused
by xmlrpc and adbapi.

class Educators(xmlrpc.XMLRPC):
    def xmlrpc_authEducator(self, educator, identify):
        self.educator = educator
        self.identify = identify
        if authenticate(self.educator).addCallback(authResult) == self.identify:
            return 1
            return 0

def authenticate(educator):
    return dbpool.runQuery("SELECT password FROM educatorgroup WHERE
educator LIKE %s", (educator,))

def authResult(db):
    if db:
        return db[0][0]
        return 0

xmlrpc_authEducator always returns 0, but if I change authResult to
print I know that the result is correct.

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