For 1), you can store the $sth after you create it once; when you next use that to execute() a SQL statement, the query still remains, though the placeholder values will be replaced with the appropriate values for the new statement. So simply create these as private variables in your Guest pacakge.

For 2), you can create a function "dbi()", which when called, either creates the $dbi connection if none exists and returns it, or returns the existing dbi connection. Then in your various classes in Guest, call something like:

my $sth = Controller->dbi()->prepare( "SQL STATEMENT" ) or die DBI->errstr;
You no longer need to pass the $dbi to each method.


Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain

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

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.