CastError:使用平均堆栈对路径“\u id”处的值“GetGelImages”转换为ObjectId失败

Question

我已经四处查看了堆栈溢出，似乎找不到与我的环境相似的错误。我已经尽了最大努力来隔离错误的来源，但没有任何运气。错误如下：

CastError:在ObjectId的路径“\u id”处，值“GetGelImages”的转换到ObjectId失败。cast（/mean/node\u modules/mongoose/lib/schema/objectid.js:117:13）

at ObjectId.castForQuery (/mean/node_modules/mongoose/lib/schema/objectid.js:166:17)
at Query.cast (/mean/node_modules/mongoose/lib/query.js:2340:32)
at Query.findOne (/mean/node_modules/mongoose/lib/query.js:1118:10)
at Query.exec (/mean/node_modules/mongoose/node_modules/mquery/lib/mquery.js:2213:16)
at Query.exec (/mean/node_modules/mongoose/lib/query.js:1797:19)
at exports.projectByID (/mean/app/controllers/projects.server.controller.js:426:142)
at paramCallback (/mean/node_modules/express/lib/router/index.js:378:7)
at param (/mean/node_modules/express/lib/router/index.js:358:5)
at Function.proto.process_params (/mean/node_modules/express/lib/router/index.js:384:3)
GET /projects/GetGelImages 500 17.173 ms - -

代码遵循以下基本结构：我有一个使用Angular执行$http.get的html页面。请注意，我已经大大删除了这些函数，以便找到错误的来源。

//HTML Button Implementation within the view
<button class="btn btn-primary" ng-click="getGelPhotos()"> 
                View Gel Photos
                <i class="glyphicon glyphicon-arrow-down"></i>
            </button>




//AngularJS Function implementation within the controller
$scope.getGelPhotos = function(){
        $http.get('/projects/GetGelImages').
        success(function(req, res){
            console.log('Successful get call.' + res.fileName);                                                                  
        }).
        error(function(err){
            alert('Error in retrieval of gel image.');
        });
    };

这些部分似乎工作正常。当我按下视图上的查看凝胶照片按钮时，我会收到提示弹出窗口，指示调用getGelPhotos函数的错误部分。

快速路线：

'use strict';

/**
 * Module dependencies.
 */
var users = require('../../app/controllers/users'),
    projects = require('../../app/controllers/projects');
.
.
.
.

app.route('/projects/GetGelImages')
        .get(users.requiresLogin, projects.retrieveGelImage);

我认为代码甚至没有到达快速路线，但是当我完全删除路线时，它给出了完全相同的错误。

最后，控制器中包含的服务器端节点：

'use strict';

/**
 * Module dependencies.
 */
var mongoose = require('mongoose'),
    errorHandler = require('./errors'),
    Project = mongoose.model('Project'),
    Log = mongoose.model('Log'),
    Plate = mongoose.model('Plate'),
    Sample = mongoose.model('Sample'),
    User = mongoose.model('User'),
    _ = require('lodash'),
    xlsx = require('xlsx'),
    path = require('path'),
    fs = require('fs'),
    nodemailer=require('nodemailer'),
    sys = require('sys'),
    exec = require('child_process').exec,
    multiparty = require('multiparty'),
    util = require('util'),
    http = require('http'),
    uuid = require('node-uuid'),
    express = require('express');


.
.
.


exports.retrieveGelImage = function(req, res) {
console.log('Made it to get gel image function');
};

到目前为止，我还没有收到此日志消息。我认为问题在于角路线和快速路线之间的中间空间。

我是平均堆栈的新手，所以如果有什么我能做的更具体的，请告诉我。

非常感谢。

Answer 1

好的，答案很简单，虽然我不确定为什么它会起作用。这是完整的路线表。我只是简单地将凝胶上传路径下面的凝胶检索路径表单移动到它上面。

module.exports = function(app) {
// Project Routes
app.route('/projects')
    .get(users.requiresLogin, projects.list)
    .post(users.requiresLogin, users.hasOfficeStaffAuthorization, projects.create);

app.route('/projects/:projectId')
    .get(users.requiresLogin, projects.read)
    .put(users.requiresLogin, users.hasOfficeStaffAuthorization, projects.update)
    .delete(users.requiresLogin, users.hasOfficeStaffAuthorization, projects.delete);

app.route('/projects/:projectId/GeneratePlateTemplate')
    .post(users.requiresLogin, projects.generatePlateTemplate);

app.route('/projects/:projectId/GeneratePlates')
    .post(users.requiresLogin, projects.generatePlates);

app.route('/projects/:projectId/UploadPlateLayout')
    .post(users.requiresLogin, projects.uploadPlateLayout);


//Gel Retrieval Route------------------------------//ROUTE location matters!
app.route('/projects/:projectId/GetGelImages')
    .get(users.requiresLogin, projects.retrieveGelImage);


//-------------------------------------------------

//Gel Upload Routes--------------------------------
app.route('/projects/:projectId/UploadGelImage')
    .post(users.requiresLogin, projects.postImage);


app.route('/projects/:projectId/UploadGelImage/gridfs')
    .post(users.requiresLogin, projects.storeImage);
//-------------------------------------------------





app.route('/projects/GenerateBarcodes')
    .post(users.requiresLogin, projects.generateBarcodes);

app.route('/projectsByStatus/:projectStatus')
    .get(users.requiresLogin, projects.listOfProjectsByStatus);

// Finish by binding the project middleware
app.param('projectId', projects.projectByID);
};