Bug 22001: Add the DBI error message

Using DBIx::Class error handler, we should not hide the error when
encapsulating it

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Koha/Object.pm

@@ -166,6 +166,7 @@ sub store {
     catch {
         # Catch problems and raise relevant exceptions
         if (ref($_) eq 'DBIx::Class::Exception') {
+            warn $_->{msg};
             if ( $_->{msg} =~ /Cannot add or update a child row: a foreign key constraint fails/ ) {
                 # FK constraints
                 # FIXME: MySQL error, if we support more DB engines we should implement this for each