[Zope-DB] Re: ZPsycopgDA (version 1.0.13) problems

[Dieter Maurer]

Jon Erickson wrote at 2003-1-22 09:24 -0600:
 > On Tue, 2003-01-21 at 13:47, Dieter Maurer wrote:
 > >  > Passing None as max_rows to mean "no limits" is much more
 > >  > meaningful here, IMHO.
 > > The problem here is, that the value should be changable by the ZMI.
 > > There, "None" for "no limits" and an integer for "that many rows"
 > > is not very good, as the content managers may not know Python.
 > 
 > How about a null max_rows value to equal "no limits".  If the content
 > manager wants all rows from the query returned, he leaves max_rows
 > blank.  If he wants to restrict the size of the result set, he can
 > provide an integer value.
 > 
 > To me, it seems non-intuative that a max_rows value of "0" == "return
 > all rows".
"0" as "no limit" is used in many places in Zope:

  *  some DA's

  *  cache manager

  *  session data


Dieter