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DB_NestedSet::createRootNode()

DB_NestedSet::createRootNode()  --  Creates a new root node. If no id is specified then it is either added to the beginning/end of the tree based on the $pos.

Synopsis

require_once 'DB/NestedSet.php';

mixed DB_NestedSet::createRootNode (array $values, integer [$id = FALSE], bool [$first = FALSE], string [$pos = NESE_MOVE_AFTER])

Beschreibung

Optionally it deletes the whole tree and creates one initial rootnode


 +-- root1 [target]
 |
 +-- root2 [new]
 |
 +-- root3
  

Parameter

array $values

Hash with param => value pairs of the node (see $this->params)

integer $id

ID of target node (the rootnode after which the node should be inserted)

boolean $first

Danger: Deletes and (re)inits the whole tree - sequences are reset

string $pos

The position in which to insert the new node.

Rückgabewert

returns The node id or false on error

Fehler-Meldungen

throws no exceptions thrown

Hinweise

Diese Methode kann nicht statisch aufgerufen werden.

Beispiel

Beispiel 39-1. Create rootnodes


<?php
require_once('DB/NestedSet.php');
    $nestedSet =& DB_NestedSet::factory('DB', $dsn, $params);
    $nestedSet->createRootNode(array('name' => 'rootnode'), false, true);
?>
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