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;
  }
[download]

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.