Zend_Db_Table_Select_Exception

Question

从下面的方法中收到此错误？

2013-10-02T14:20:05+01:00 ERR (3): exception 'Zend_Db_Table_Select_Exception' with message 'Select query cannot join with another table' in /usr/share/php/Zend/Db/Table/Select.php:215

class Application_Model_DbTable_Provenir extends Zend_Db_Table_Abstract { 
    protected $_name = 'provenir_instance_response'; 
    protected $_primary = 'provenir_response_id'; 
    protected $_sequence = true; 

    /** 
    * Get passed result and check ID 
    * @param string $memId 
    * @return Zend_Db_Table 
    */ 
    public function scoreCardQuery($memId){ 
     //Build Query 
     $select = $this->select(); 
     $select->from('scorecard_results', array('passed', 'check_id')); 
     $select->where('traveller_id=?', $memId); 
     return $this->fetchAll($select); 
    } 
} 

连接没有了呢？ ：S

难道是因为我引用provenir_instance_response作为类参数中的数据库表，但我试图从scorecard_results中选择？

Answer 1

/** 
* Get passed result and check ID 
* @param string $memId 
* @return Zend_Db_Table 
*/ 
public function scoreCardQuery($memId){ 
    //Build Query 
    $select = $this->select(); 
    $select->setIntegrityCheck(false); //Must be set for this query to work 
    $select->from('scorecard_results', array('passed', 'check_id')); 
    $select->where('traveller_id=?', $memId); 
    return $this->fetchAll($select); 
}