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Re: [Gnumed-devel] layout managers
From: |
Karsten Hilbert |
Subject: |
Re: [Gnumed-devel] layout managers |
Date: |
Sun, 25 Jul 2004 16:03:12 +0200 |
User-agent: |
Mutt/1.3.22.1i |
> > - table trigger sends NOTIFY with patient ID attached
> > - no one emits NOTIFIES
>
> The bit where this fails over is that NOTIFY cannot carry any parameters - at
> least not tile version 7.3, and I doubt this has changed.
It doesn't fall over. It works now, today, in your very CVS
version of the code.
> Thus, the backend can send a NOTIFY that *a* patient has changed, but that
> mechanism won't tell you which one.
Why of course it does. Think EXECUTE.
> Hence, you can either lock a particular row as soon as you intend to edit it
> -
> which will prevent anybody else to edit it at the same time - or it gets
> very, very complicated.
Which is exactly what we do in all descendants of cClinItem.
> That is, you'll have to do a "select for update" statement whenever you
> consider the ere *possibility* that a user interface element will change
> data.
IOW always. And down the drain goes the idea of using readonly
connections.
Karsten
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- Re: [Gnumed-devel] layout managers, (continued)
- Re: [Gnumed-devel] layout managers, Karsten Hilbert, 2004/07/25
- Re: [Gnumed-devel] layout managers, Karsten Hilbert, 2004/07/25
- Re: [Gnumed-devel] layout managers, Horst Herb, 2004/07/25
- Re: [Gnumed-devel] layout managers, Karsten Hilbert, 2004/07/25
- Re: [Gnumed-devel] layout managers,
Karsten Hilbert <=
- Re: [Gnumed-devel] layout managers, Karsten Hilbert, 2004/07/25