Ah. Nice approach.

I would like to mention the possibility to use functions instead of constants, and move all these functions to a separate module.

This all in the spirit of McConnell's Code Complete. Paraphrased: If you don't like/ grog/ find strange/ consider to be difficult a certain library or structure or whatever, interface it in a separate module. That way, you don't clutter up your main code with things that are unclear and hard to maintain. As a spin-off, you can reuse that module.

In this case, you could write functions with very descriptive names just as wrappers for the SQL: 

package SQL_functions;

sub select_picture_from_userID{
  my $userID = shift;
  "SELECT pict FROM users WHERE ID = $userID;"
}

sub select_some_nifty_case_with_contstraints{
  ... #hehe, perl6 only
}

#and in the "main" code:
use SQL_functions qw/:all/;
my $sth = $dbh->prepare( select_picture_from_userID( 666 ) ) or die...

[download]

Hope this helps,

Jeroen

In reply to Re:{2} Leashing DBI by jeroenes
in thread Leashing DBI by billyak

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