mirror of
https://git.FreeBSD.org/ports.git
synced 2025-01-10 07:04:03 +00:00
ad4f267b7a
search.cpan.org is shutting down. It will redirect to metacpan.org after June 25, 2018. With hat: perl
12 lines
606 B
Plaintext
12 lines
606 B
Plaintext
This module provides methods for working with adjacency lists. The
|
|
adjacency list model is a very common way of representing a tree
|
|
structure. In this model each row in a table has a prent ID column
|
|
that references the primary key of another row in the same table.
|
|
Because of this the primary key must only be one column and is usually
|
|
some sort of integer. The row with a parent ID of 0 is the root node
|
|
and is usually the parent of all other rows. Although, there is no
|
|
limitation in this module that would stop you from having multiple
|
|
root nodes.
|
|
|
|
WWW: https://metacpan.org/release/DBIx-Class-Tree
|