I'd say that the $dbh connection should remain open for the lifetime of the object, which means it should be created during the constructor. You will also want to add the DBI->connect string to the items passed to the constructor in that case, and maybe give the option for an already created dbi session to be passed in instead. When you have the session, you can store it in $self->{dbh}.

As for the individual queries they should be either created with $dbh->prepare_cached('select...');, or stored in the object. This code may give an idea of what I mean. 

sub delete {
     my $obj = shift;
     my $sth = $obj->{queries}{delete} || $obj->{dbh}->prepare( 
                               "DELETE FROM guest_list
                               WHERE  last_name = ? and
                                      first_names = ?" );
     $sth->execute($obj->{_last_name},
                   $obj->{_first_names});
     $obj->{queries}{delete} = $sth;
     return 1;
  }

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In reply to Re: Object Oriented Pattern help by repson
in thread Object Oriented Pattern help by thefid

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