12 lines
606 B
Text
12 lines
606 B
Text
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This module provides methods for working with adjacency lists. The
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adjacency list model is a very common way of representing a tree
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structure. In this model each row in a table has a prent ID column
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that references the primary key of another row in the same table.
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Because of this the primary key must only be one column and is usually
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some sort of integer. The row with a parent ID of 0 is the root node
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and is usually the parent of all other rows. Although, there is no
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limitation in this module that would stop you from having multiple
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root nodes.
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WWW: http://search.cpan.org/dist/DBIx-Class-Tree/
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