[ic] Displaying SQL-Errors in the Administration Panel

[Mike Heins]

Quoting Mike Heins (mike at perusion.com):
> Quoting Stefan Hornburg (Racke) (racke at linuxia.de):
> > > > Isn't it possible, that all SQL-Errors are displayed in the 
> > > > administration-panel? That's what I thougt should be the default! I
> > > > use IC v.4.9.7.
> > > > 
> > > 
> > > I believe you are right. I have been ignoring this issue for
> > > some time, but will be fixing it soon.
> > > 
> > > For the moment, you have to look at the global error.log file. Ugh.
> > > 
> > 
> > As long as there is no Internal Server Error, these messages can be
> > found in the catalog error log, but a feedback for the user is really
> > a good idea.
> > 
> 
> I am working on it now. There is some question in my mind as to
> what should be done on an error, and my inclination is to do this:
> 
>     1. Set up logging levels on a per-table basis, with
>        defaults that can be set with DatabaseDefault:
> 
>         DatabaseDefault  LOG_ERROR_CATALOG  1
>         DatabaseDefault  LOG_ERROR_SESSION  1
>         DatabaseDefault  LOG_ERROR_GLOBAL   0
>         DatabaseDefault  DIE_ERROR          0
> 
>     2. Log errors to the catalog error.log by default.
> 
>         Database  inventory LOG_ERROR_CATALOG  0|1*
> 
>     3. Log errors to the session always if an admin, and
>        controlled by configuration if not.
> 
>         Database  inventory LOG_ERROR_SESSION  0|1*
> 
>        This would have the effect of giving a big red error message
>        when such an event as failing to create a record occured. In
>        most cases, you would be able to use the <-Back button and
>        fix the error and resubmit.
> 
>     4. Die at the page level (500 error) only if that is explicit
>        request in config for that table:
> 
>         Database  inventory  DIE_ERROR  0*|1
> 
>     5. Log errors globally only on explicit request:
> 
>         Database  inventory LOG_ERROR_GLOBAL   0*|1
> 
>     6. LENGTH_EXCEPTION errors would go into warnings if they
>        are handled with truncate.
> 
>   * default
> 

This is done in CVS now, pretty much as shown. You can also get
an error message back in embedded Perl:

	my $db = $Db{products};
	my $ary = $db->query("select foo from products")
		or die $db->errstr;

-- 
Mike Heins
Perusion -- Expert Interchange Consulting    http://www.perusion.com/
phone +1.513.523.7621      <mike at perusion.com>

Fast, reliable, cheap.  Pick two and we'll talk.  -- unknown