Ah, my apologies! My short hand with $data got a little too short! $data really looks like this:

my $data = [
   [ 'parent1', 'child1', 'grand_child1', undef,    ],
   [ 'parent1', 'child2', 'grand_child2', 'great_grand_child1',],
   [ 'parent1', 'child3', undef, undef,],
];

[download]

Or:

my $data = [
   [ 'parent1',      'child1' ],
   [ 'child1',       'grand_child1' ],
   [ 'parent1',      'child2' ],
   [ 'child2',       'grand_child2' ],
   [ 'grand_child2', 'great_grand_child2' ],
   [ 'parent1',      'child1c' ],
];

[download]

But because of our extended table structure, I'm sure how I can (easily) make it look like the second form though.

In reply to Re^4: Generating a Hash of Hashes Recursively to Display Database Hierarchy by c4onastick
in thread Generating a Hash of Hashes Recursively to Display Database Hierarchy by c4onastick

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.