expressjs mysql更新錯誤

Question

我使用expressjs和node-mysql模塊。我得到這個錯誤，當我發佈到更新動作

/Users/mac/node_modules/mysql/lib/mysql/client.js:106 
     cb(err); 
     ^
TypeError: string is not a function 
    at String.CALL_NON_FUNCTION (native) 
    at Query.<anonymous> (/Users/mac/node_modules/mysql/lib/mysql/client.js:106:9) 
    at Query.emit (events.js:64:17) 
    at Query._handlePacket (/Users/mac/node_modules/mysql/lib/mysql/query.js:35:12) 
    at Client._handlePacket (/Users/mca/node_modules/mysql/lib/mysql/client.js:294:14) 
    at Parser.<anonymous> (/Users/mac/node_modules/mysql/lib/mysql/client.js:83:14) 
    at Parser.emit (events.js:64:17) 
    at /Users/mac/node_modules/mysql/lib/mysql/parser.js:75:14 
    at Parser.write (/Users/mac/node_modules/mysql/lib/mysql/parser.js:580:7) 
    at Socket.<anonymous> (/Users/mca/node_modules/mysql/lib/mysql/client.js:63:16) 

我用這個動作：

app.post('/post/:id/edit', function(req, res){ 
     var id = req.params.id; 
     var query = client.query(
      'UPDATE '+POST, 
      'SET title = ?, text = ?', 
      [req.body.title, req.body.text ], 
     ' WHERE id='+id 
     ); 
     res.redirect('/'); 
    }); 

有什麼不對？

Answer 1

var query = client.query(
     'UPDATE '+POST + 
     ' SET title = ?, text = ?' + 
     ' WHERE id='+id, 
     [req.body.title, req.body.text ] 
    ); 

您使用的,代替+

你想連接你所有的字符串部分，然後在最後通過你的參數數組。