Hi all,
I recently discovered the greatness that is Hash::Util::lock_ref_keys ,
when used together with ->fetchall_arrayref() like this:
...
my $rows= $sth->fetchall_arrayref( {} };
for( @$rows ) {
lock_ref_leys( $_ );
};
...
This prevents me from accessing hash keys that don't exist. Usually,
this is inconvenient, but with SQL query results, I (too) often
encounter different case for the column names, or other inconsistencies.
Especially when columns are allowed to be NULL, it may take me a while
to figure out that I'm looking at the wrong key.
I'd like to enable this returning of locked hashes from within DBI,
preferrably on a per-$dbh-level:
my $dbh= DBI->connect( $dsn, 'scott', 'tiger', { RaiseError => 1,
StrictResults => 1 });
Alternatively, I'm also open to suggestions on how to best implement
this feature in a separate module, tentatively named DBI::strict. I've
thought about doing some AUTOLOAD reflection onto the real $dbh, but I'm
unsure about how to best approach wrapping arbitrary DBD
handles/statement handles with my DBI::strict::st without interfering.
Also, I'd appreciate hints on what subroutine(s) would be the most
appropriate to enable locking the hashes, as I want to write as little
new code for such a feature as necessary.
Thanks for reading,
-max
