public function testTreeOperations()
{
$newNode1 = new Tree\Node('abc', 'node1', $this->_tree);
$this->_tree->addNode($newNode1);
$newNode2 = new Tree\Node('def', 'node2', $this->_tree);
$this->_tree->addNode($newNode2, $newNode1);
$newNode3 = new Tree\Node('ghi', 'node3', $this->_tree);
$this->_tree->addNode($newNode3, $newNode1);
$data1 = ['j', 'k', 'l'];
$this->_tree->appendChild($data1, $newNode3);
$newNode4 = new Tree\Node('mno', 'node4', $this->_tree);
$this->_tree->appendChild($newNode4, $newNode3);
$this->_tree->removeNode($newNode4);
$this->_tree->removeNode($newNode3);
$this->_tree->removeNode($newNode2);
$this->_tree->removeNode($newNode1);
$this->assertEmpty($this->_tree->getNodes()->getNodes());
}
/**
* @param Node $prevNode
* @return $this
*/
public function appendChild($prevNode = null)
{
$this->_tree->appendChild($this, $prevNode);
return $this;
}
/**
* @param Node $data
* @param Node $parentNode
* @param Node $prevNode
* @return Node
*/
public function appendChild($data, $parentNode, $prevNode = null)
{
$orderSelect = $this->_conn->select();
$orderSelect->from($this->_table, new \Zend_Db_Expr('MAX(' . $this->_conn->quoteIdentifier($this->_orderField) . ')'))->where($this->_conn->quoteIdentifier($this->_parentField) . '=' . $parentNode->getId());
$order = $this->_conn->fetchOne($orderSelect);
$data[$this->_parentField] = $parentNode->getId();
$data[$this->_levelField] = $parentNode->getData($this->_levelField) + 1;
$data[$this->_orderField] = $order + 1;
$this->_conn->insert($this->_table, $data);
$data[$this->_idField] = $this->_conn->lastInsertId();
return parent::appendChild($data, $parentNode, $prevNode);
}
