db-torque-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Thomas Fischer <fisc...@seitenbau.net>
Subject AW: Missing connection parameter
Date Tue, 24 Jul 2007 13:41:02 GMT
Please open up a issue in scarab and attach the patch.

   Thanks in advance,

         Thomas

"Tobias Hilka" <thilka@vps.de> schrieb am 24.07.2007 14:01:03:

> Hi Thomas,
>
> I just patched the template Object.vm to provide the missing connection
parameter.
>
> What is the appropriate way to provide this patch?
>
> Tobias
>
> -----Ursprüngliche Nachricht-----
> Von: Thomas Fischer [mailto:fischer@seitenbau.net]
> Gesendet: Freitag, 6. Juli 2007 08:48
> An: Apache Torque Developers List
> Betreff: RE: Missing connection parameter
>
> Hi Tobias,
>
> I had similar problems a year or two ago. The solution was to use the
> torque.silentDbFetch generator  parameter. The idea is that all db
fetches
> of foreign relations must be done explicitly with the get(connection)
> methods; the get() methods only return the cached results This gives you
> full control over what you fetch from db with which connection.
> The downside of full control ist that you have to exercise it, i.e if you
> want to make a deep copy, you have to fetch the related objects
beforehand
> by calling the corresponding get(connection) methods.
> Nevertheless In my opinion a copy(connection) method would be useful. A
> patch would be welcome.
>
>         Thomas
>
> "Tobias Hilka" <thilka@vps.de> schrieb am 05.07.2007 18:26:16:
>
> > Hello,
> >
> > I was checking our application to see if within a single transaction
all
> calls
> > to torque use the methods with the additional Connection parameter.
Doing
> this
> > I found some problems within Torque:
> >
> > - The method copy(boolean) does not take a connection as parameter.
This
> might
> > lead to a deadlock if you use deepcopy and you have foreign keys to
other
>
> > tables. The methods get...() are called, not the methods
> get...(Connection).
> > - Same problem with the add… methods when you add a new object which is
> > referenced by a foreign key.
> >
> > We really had some troubles in our application with the “convenience”
> methods
> > (the one without connection). To do clean programming, we need the
> methods to
> > take an additional connection parameter.
> >
> >
> > Thanks,
> >
> > Tobias
> >
Mime
View raw message