In my Class::DBI-based link checker, I solved the problem like this: 
{
  package My::Link;
  our @ISA = qw(My::DBI);

  __PACKAGE__->table('link');
  __PACKAGE__->columns(Primary => qw(src dst));
  __PACKAGE__->has_a(src => 'My::Page');
  __PACKAGE__->has_a(dst => 'My::Page');
}

{
  package My::Page;
  our @ISA = qw(My::DBI);

  __PACKAGE__->table('page');
  __PACKAGE__->columns(All => qw(location state last_status
                                 last_checked last_good last_modified)
+);

  __PACKAGE__->has_many(inbound => 'My::Link', 'dst', { sort => 'src' 
+});
  __PACKAGE__->has_many(outbound => 'My::Link', 'src', { sort => 'dst'
+ });
}

[download]
It looks close to what you did. Not sure why mine worked and yours didn't.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to Re: Class::DBI and a self-referencing many-to-many by merlyn
in thread Class::DBI and a self-referencing many-to-many by jgallagher

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.