On 1/8/07, Peter Leonard <[EMAIL PROTECTED]> wrote: > I know that I can add the 'db => $db_ro' parameter to all the get_*() > methods, but I'm wondering if anyone has come up with a more > comprehensive solution by subclassing Rose::DB::Object::Manager? > > I'm especially curious because it seems like best-practices with > Rose::DB are to create your own subclass that everything you write > inherits from, but the tutorials seem to suggest the other direction > with respect to RDBO.
Where do you get that impression in the tutorial? I had the opposite intent (thus the "Setting up your own base class" section). Although no custom Rose::DB::Object::Manager-derived vase class is shown in the tutorial (IIRC), it's definitely something that's allowed and encouraged for cases where you want to modify the behavior of the standard methods. As for your question about RO/RW db handles, I've considered adding support for named handle types to RDBO. For example, when the save() method needs a db, it'd call $self->db(type => 'read') or something internally, instead of just the $self->db call that it uses now. But I've always run into the issue of deciding which operations only require a RO handle and which might need a RW handle. (Remember that these db handles are shared with sub-objects and so on.) Thus far, I've punted and recommended the explicit solution: you choose what db to use for each call. It should be easy to automate whatever decisions are appropriate for your project, but it's hard to come up with a system that works for everyone. -John ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Rose-db-object mailing list Rose-db-object@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rose-db-object
