[ZF] Meerdere tabellen vanaf 1 model

class Application_Model_Instellingen extends Zend_Db_Table
{
public function getMode()
    {
        $select = $this->select()
                    ->from($this->_name, array('mode'));
        return $this->fetchRow($select)->toArray();
    }

class Application_Model_Instellingen extends Zend_Db_Table
{
public function getMode()
    {
        $select = $this->select()
                    ->from($this->_name, array('mode'));
        return $this->fetchRow($select)->toArray();
    }

public function getTemp()
    {
        $select = $this->select()
                    ->from('temperatuur', array('temp'));
        return $this->fetchRow($select)->toArray();
    }

public function getTemp()
    {
        $select = $this->select()
                    ->from('temperatuur', array('temp'));
        return $this->fetchRow($select)->toArray();
    }