$order = new Application_Model_DbTable_Order();
$orderno = $order->select()
->from($order, 'orderno')
->where('memberid = ?', $userid)
->order('orderno DESC')
->limit(1, 0);
我收到了这个错误信息,SQLSTATE[HY000]: General error: 1366,表示在第一行中的“orderno”列上存在一个问题,因为它无法识别“ SELECT . FROM WHERE(memberid ='30')ORDER BY DESC LIMIT 1”这个字符串作为整数值。请问我的代码是否有什么问题?我已经搜索了所有地方,但似乎找不到任何帮助。
#SQL code for Ordertable#
`orderno` int(5) NOT NULL AUTO_INCREMENT,
`memberid` int(5) DEFAULT NULL,
PRIMARY KEY (`orderno`)
#SQL code for Item#
`itemid` int(5) NOT NULL AUTO_INCREMENT,
`image` varchar(100) NOT NULL,
`itemname` varchar(30) DEFAULT NULL,
`description` varchar(100) DEFAULT NULL,
`itemtype` varchar(20) DEFAULT NULL,
PRIMARY KEY (`itemid`)
#SQL code for Orderdetail#
`orderdetailno` int(5) NOT NULL AUTO_INCREMENT,
`orderno` int(5) NOT NULL,
`itemid` int(5) NOT NULL,
`unitcost` decimal(6,2) DEFAULT NULL,
PRIMARY KEY (`orderdetailno`),
KEY `orderno` (`orderno`),
KEY `itemid` (`itemid`)
这是我的SQL代码,如果有帮助的话,我正在使用MySQL。
$request = new Zend_Session_Namespace('cart');
$auth = Zend_Auth::getInstance();
$user = $auth->getIdentity();
$userid = $user->userid;
$order = new Application_Model_DbTable_Order();
$itemdb = new Application_Model_DbTable_Item();
$orderdetail = new Application_Model_DbTable_Orderdetail();
$data = array ('memberid' => $userid);
$order->insert($data);
$orderno = $order->select()
->from($order, 'orderno')
->where('memberid = ?', $userid)
->order('orderno DESC')
->limit(1, 0);
foreach ($request->array as $var)
{
$unitprice = $itemdb->select()
->from('$itemdb', 'unitcost')
->where('itemid = ?', $var);
$newArray = array('orderno' => $orderno,
'itemid' => $var,
'unitcost' => $unitprice, );
$orderdetail->insert($newArray);
}
非常感谢您的帮助与指导。