MEANJS TypeError:Route.all()需要回调函数,但得到了一个[object Undefined]
MEANJS TypeError: Route.all() requires callback functions but got a [object Undefined]
我目前正在学习MEAN堆栈,并一直在使用4.1版的meanjs.org yo生成器。我在生成的应用程序中包含了CRUD示例,并将其用作自己代码的示例。
我遇到的错误是:
TypeError: Route.all() requires callback functions but got a [object Undefined]
at Route.all (/Users/username/git/interview-app/node_modules/express/lib/router/route.js:173:13)
at module.exports (/Users/username/git/interview-app/modules/interviews/server/routes/interviews.server.routes.js:9:32)
at /Users/username/git/interview-app/config/lib/express.js:183:37
at Array.forEach (native)
at Object.module.exports.initModulesServerRoutes (/Users/username/git/interview-app/config/lib/express.js:182:30)
at Object.module.exports.init (/Users/username/git/interview-app/config/lib/express.js:248:8)
at /Users/username/git/interview-app/config/lib/app.js:29:23
at /Users/username/git/interview-app/config/lib/mongoose.js:36:15
at open (/Users/username/git/interview-app/node_modules/mongoose/lib/connection.js:488:17)
at NativeConnection.Connection.onOpen (/Users/username/git/interview-app/node_modules/mongoose/lib/connection.js:498:5)
at /Users/username/git/interview-app/node_modules/mongoose/lib/connection.js:457:10
at /Users/username/git/interview-app/node_modules/mongoose/lib/drivers/node-mongodb-native/connection.js:60:5
at /Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb/lib/db.js:229:5
at connectHandler (/Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb/lib/server.js:279:7)
at g (events.js:260:16)
at emitOne (events.js:77:13)
at emit (events.js:169:7)
at /Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb-core/lib/topologies/server.js:409:23
at /Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb-core/lib/topologies/server.js:778:13
at Callbacks.emit (/Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb-core/lib/topologies/server.js:95:3)
at null.messageHandler (/Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb-core/lib/topologies/server.js:249:23)
at Socket.<anonymous> (/Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb-core/lib/connection/connection.js:262:22)
/Users/username/git/interview-app/node_modules/mongoose/node_modules/mongodb/lib/server.js:282
process.nextTick(function() { throw err; })
这是我的interviews.server.routes.js:的代码
*** interviews.server.routes.js ***
'use strict';
// Module dependencies
var interviewsPolicy = require('../policies/interviews.server.policy'),
interviews = require('../controllers/interviews.server.controller');s
module.exports = function (app) {
//Interviews collection routes
app.route('/api/interviews').all(interviewsPolicy.isAllowed)
.get(interviews.list)
.post(interviews.create);
// Single Interview routes
app.route('/api/interviews/:interviewId').all(interviewsPolicy.isAllowed)
.get(interviews.read)
.put(interviews.update)
.delete(interviews.delete);
// Bind the interview to middleware
app.param('interviewId', interviews.interviewByID);
};
以下是interviews.server.routes.js.的模块依赖关系代码
政策代码:
*** interviews.server.policy.js ***
'use strict';
//Module dependencies
var acl = require('acl');
// Using the memory backend
acl = new acl(new acl.memoryBackend());
// Invoke Interviews Permissions
exports.invokeRolesPolicies = function () {
acl.allow([{
roles: ['admin'],
allows: [{
resources: '/api/interviews',
permissions: '*'
},
{
resources: '/api/interviews/:interviewId',
permissions: '*'
}]
},
{
roles: ['user'],
allows: [{
resources: '/api/interviews',
permissions: ['get', 'post']
},
{
resources: '/api/interviews/:interviewId',
permissions: ['get']
}]
},
{
roles: ['guest'],
allows: [{
resources: '/api/interviews',
permissions: ['get']
},
{
resources: '/api/interviews/:interviewId',
permissions: ['get']
}]
}]);
};
控制器代码:
'use strict';
// Module dependencies
var path = require('path'),
mongoose = require('mongoose'),
Interview = mongoose.model('Interview'),
errorHandler = require(path.resolve('./modules/core/server/controllers/errors.server.controller'));
// Create an Interview
exports.create = function (req, res) {
var interview = new Interview(req.body);
interview.user = req.user;
interview.save(function (err) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.json(interview);
}
});
};
// Show the current Interview
exports.read = function (req, res) {
res.json(req.interview);
};
// Update Interview
exports.update = function (req, res) {
var interview = req.interview;
interview.title = req.body.title;
interview.question = req.body.question;
interview.answer = req.body.answer;
interview.save(function (err) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.json(interview);
}
});
};
// Delete Interview
exports.delete = function (req, res) {
var interview = req.interview;
interview.remove(function (err) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.json(interview);
}
});
};
// List of Interviews
exports.list = function (req, res) {
Interview.find().sort('-created').populate('user', 'displayName').exec(function (err, interviews) {
if (err) {
return res.status(400).send({
message: errorHandler.getErrorMessage(err)
});
} else {
res.json(interview);
}
});
};
// Article middleware
exports.interviewByID = function (req, res, next, id) {
if (!mongoose.Types.ObjectId.isValid(id)) {
return res.status(400).send({
message: 'Interview is invalid'
});
}
Interview.findById(id).populate('user', 'displayName').exec(function (err, interview) {
if (err) {
return next(err);
} else if (!interview) {
return res.status(400).send({
message: 'No interview with that identifier has been found'
});
}
req.interview = interview;
next();
});
};
在我的package.json中,我使用:表达:4.13.1,猫鼬:4.2.3,节点:0.12.0
如有任何帮助,我们将不胜感激。请询问您是否需要更多信息。感谢-B
让我们把它缩短一点。您正在导入一个模块
var interviewsPolicy = require('../policies/interviews.server.policy'),
看起来像
exports.invokeRolesPolicies = function () {
// stuff
};
然后你做
app.route('/api/interviews/:interviewId').all(interviewsPolicy.isAllowed)
但很明显,模块没有isAllowed
属性,它唯一的属性是invokeRolesPolicies
,这是一个函数,所以您将undefined
传递给Route.all
函数。
相关文章:
- 如何取消object.prototypes javascript的一个函数
- 如何在jquery中为object键创建一个工作变量以避免额外的代码
- 在JavaScript中,is't Object Literal Notation只是字典的另一个名称
- 为什么使用 Object('123') 创建对象会创建一个 String() 对象,但 typeof 是“对象”
- 我正在从API提取一个包含视频的Object标签.如何在javascript中暂停视频
- 给定一个对象数组,创建一个函数,该函数返回一个 Object,该 Object 具有按类型分组的路径数组
- requireJS Object 原型可能只是一个 Object 或 null - jQuery
- 创建一个具有 3 个方法的 JavaScript 对象抛出 Object 没有方法
- .get()需要回调函数,但得到了一个[object Undefined]
- MEANJS TypeError:Route.all()需要回调函数,但得到了一个[object Undefined]
- 错误:Route.put()需要回调函数,但得到了一个[object Undefined]
- 为什么我得到一个[object元素]
- 在Javascript中创建一个Object(类)结构
- ng-options在select中返回一个Object而不是String
- 从另一个对象创建一个Object数组
- 是否基于一个Object创建一系列下拉菜单,其中键为:[下拉选项数组]对
- Ember.js-使用removeObject只删除一个Object实例
- 用Javascript创建一个Object
- 量角器错误消息返回一个Object
- 车把访问一个[object object]