forked from Lainports/opnsense-ports
8cb1a96ede
Taken from: https://github.com/freebsd/freebsd-ports.git Commit id: 5070672073b68be364139bc6b3a89100bd17d331
11 lines
606 B
Text
11 lines
606 B
Text
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: http://search.cpan.org/dist/DBIx-Class-Tree/
|