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Modified Preorder Tree Traversal library for Kohana ORM.
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classes
tests/orm_mptt
README.md

README.md

This library is old and no longer maintained, for a modern alternative use Doctrine Extensions.

MPTT Library, extends ORM

Setup

Place module in /modules/ and include the call in your bootstrap.

Declaring your ORM object

class Model_Category extends ORM_MPTT {
}

Usage Examples

Creating a root node:

$cat = ORM::factory('Category_Mptt');
$cat->name = 'Music';
$cat->insert_as_new_root();
echo 'Category ID'.$mptt->id.' set at level '.$cat->lvl.' (scope: '.$cat->scope.')';
$c1 = $cat; // Saving id for next example

Creating a child node:

$cat->clear(); // Clearing ORM object
$cat->name = 'Terminology';
$cat->insert_as_last_child($c1);