API16:JTableNested/check

Description

Asset that the nested set data is valid.

Syntax

check()

Returns

boolean True if the instance is sane and able to be stored in the database.

Defined in

libraries/joomla/database/tablenested.php

Importing

jimport( 'joomla.database.tablenested' );

Source Body

public function check()
{
        $this->parent_id = (int) $this->parent_id;
        if ($this->parent_id > 0) {
                $this->_db->setQuery(
                        'SELECT COUNT(id)' .
                        ' FROM '.$this->_db->nameQuote($this->_tbl).
                        ' WHERE `id` = '.$this->parent_id
                );
                if ($this->_db->loadResult()) {
                        return true;
                } else {
                        if ($error = $this->_db->getErrorMsg()) {
                                $this->setError($error);
                        } else {
                                $this->setError('JError_Invalid_parent_id');
                        }
                }
        } else {
                $this->setError('JError_Invalid_parent_id');
        }

        return false;
}