sample tree eroor

gistfile1.txt

$page = new Page(){

$page->create();
$page->save(array('parent_id' => 10 , 'title' => 'hello'));

Page.php

<?php
class Page extends AppModel{
 
    public $actsAs = array(
        'Tree' 
    );
 

    public $hasOne = array( 'Category' );

    public function beforeFind($queryData) {
		$queryData['conditions'][$this->escapeField('model')] = 'Page'
		return $queryData;
	}	

}

table

CREATE TABLE `pages` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`site_id` int(11) DEFAULT NULL,
`type` varchar(255) COLLATE utf8_persian_ci NOT NULL,
`model` varchar(255) COLLATE utf8_persian_ci NOT NULL,
`lang` varchar(5) COLLATE utf8_persian_ci NOT NULL,
`name` varchar(255) COLLATE utf8_persian_ci NOT NULL,
`alias` varchar(255) COLLATE utf8_persian_ci NOT NULL,
`home` tinyint(1) NOT NULL DEFAULT '0',
`status` tinyint(1) NOT NULL DEFAULT '1',
`content_count` int(11) DEFAULT '0',
`service_count` int(11) DEFAULT '0',
`created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`modifed` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (`id`),
KEY `fk_objects_sites_1` (`site_id`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8 COLLATE=utf8_persian_ci;