Hi nysus,

It's hard for me to imagine when you'd want to change the DB connection attribute of an object instance. If you really need more than one connection, it might be better to hide them in the consuming class behind object methods that simply return the data you want.

On the other hand it *is* common to need to connect to more than one DB in a given application. In that case (or in the case of a single object needing more than one connection) I would suggest using an external configuration file with the configs for your various DSNs, and then create your single class that will return a DB connection based on the parameters passed. I wouldn't try to switch connections as you've outlined, seems too error-susceptible and for no real benefit. Other monks may be able to provide the nitty-gritty as to why it's a bad idea; all I can say is that it smells dodgy.

Hope this helps!


The way forward always starts with a minimal test.

In reply to Re: Moose::Role to provide DBI interface by 1nickt
in thread Moose::Role to provide DBI interface by nysus

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.