Sequelize发现没有成功功能

我有以下代码：Sequelize发现没有成功功能

app.get('/autocompleteEmployees', function(req, res){ 
    var term = req.param('term'); 
    model.Employee.findAll().success(function(employees){ 
     var responseData = []; 
     for(var i=0; i<employees.length; i++){ 
      console.log('i: ' + i); 
      model.Person.find(employees[i].personID).success(function(person){ 
       if((person.lastName + ', ' + person.firstName).toLower().indexOf(term.toLower()) > -1){ 
        responseData.push({ 
         label: person.lastName + ', ' + person.firstName, 
         value: employees[i].id 
        }); 
       } 

       if(i + 1 == employees.length){ 
        res.send(JSON.stringify(repsonseData)); 
       } 
      }); 
     } 
    }); 
});

一旦GET/autocompleteEmployees路线被调用时，我收到以下错误：

C:\Users\lowerkey\Desktop\emasc\server\controllers\Employee.js:85 
           model.Person.find(employees[i].personID).success (function(person){ 
              ^TypeError: Object [object Object] has no method 'success' 
    at [object Object].<anonymous> (C:\Users\lowerkey\Desktop\emasc\server\contr ollers\Employee.js:85:46) 
    at [object Object].emit (events.js:67:17) 
    at [object Object].<anonymous> (C:\Users\lowerkey\Desktop\emasc\node_modules \sequelize\lib\query-interface.js:245:17) 
    at [object Object].emit (events.js:88:20) 
    at [object Object].<anonymous> (C:\Users\lowerkey\Desktop\emasc\node_modules \sequelize\lib\dialects\mysql\query.js:78:10) 
    at C:\Users\lowerkey\Desktop\emasc\node_modules\sequelize\lib\dialects\mysql \query.js:32:51 
    at Query.<anonymous> (C:\Users\lowerkey\Desktop\emasc\node_modules\sequelize \node_modules\mysql\lib\client.js:108:11) 
    at Query.emit (events.js:64:17) 
    at Query._handlePacket (C:\Users\lowerkey\Desktop\emasc\node_modules\sequeli ze\node_modules\mysql\lib\query.js:51:14) 
    at Client._handlePacket (C:\Users\lowerkey\Desktop\emasc\node_modules\sequel ize\node_modules\mysql\lib\client.js:312:14)

我能做些什么摆脱错误？

来源

2012-03-10 lowerkey

请问您可以添加模型定义吗？还有你把你的模型绑定到模型变量的那一行？ – sdepold 2012-03-11 21:47:07

说实话，我从来没有尝试在Windows上进行续集：D – sdepold 2012-03-11 21:48:29

我想通了：结果员工[i] .personID变量为空。原来，我正在处理异步的东西，到for循环中的代码被调用时，我已经比employees.length更大。解决方案是有一个单独的计数器，考虑到异步性。对于模糊的描述感到抱歉...已经过了几天了。感谢您的关注！ – lowerkey 2012-03-12 01:12:47

原来，不是简单地将for循环与异步代码混合在一起。

的解决方案，对于那些走我自己相同的路径，是这样的：

Array.prototype.foreach = function(callback) { 
    for(var k=0; k<this .length; k++) { 
    callback(k, this[ k ]); 
    } 
} 

app.get('/autocompletePersonEmployees', function(req, res){ 
    console.log('/autocompleteEmployees'); 

    var term = req.param('term', null); 
    if(term == null){ 
     model.Employee.findAll().success(function(employees){ 
      var responseData = []; 
      employees.foreach(function(i, employee){ 
       console.log(i + ' ' + employee.toString()); 
       model.Person.find(employee.personID).success(function(person){ 
        responseData.push({ 
         label: person.lastName + ', ' + person.firstName, 
         value: employee.id 
        }); 

        if(i+1 == employees.length){ 
         res.send(JSON.stringify(responseData)); 
        } 
       }); 
      }); 
     }); 
    } 
    });

来源

2012-03-12 01:36:04 lowerkey

您可能会发现它更容易使用forEach通话距离受欢迎async库，而不是你自己定义一个。

来源

2013-01-02 06:25:41 dankohn

Sequelize发现没有成功功能

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