mean-stack | 易学教程

NODE_PATH throws error when NPM starts on windows 10

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问题 I am trying to built a MEAN Todo app by following https://github.com/michaelcheng429/super-mean-stack package.json { "name": "ToDoThoughts", "version": "1.0.0", "description": "", "main": "index.js", "scripts": { "start": "NODE_PATH=$NODE_PATH:./app node server", "dev": "npm start & webpack-dev-server --progress --colors" }, "license": "ISC", "dependencies": { "angular": "1.4.12", "angular-ui-router": "0.3.1", "body-parser": "1.15.2", "bootstrap": "3.3.7", "express": "4.14.0" },

Can't find records in Waterline by date/time

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问题 how compare a datetime in sails.js Model? here it is what i did but without luck. var _date = moment().format('YYYY-MM-DDTHH:mm:ss.SSS') + 'Z'; Game.find({ where:{ active: true, start: { '>=' : _date } }, limit: 1, sort: 'start asc' }, function(err, game) { console.log('ERROR: ' + err); console.log('Game OBJ' + game.toString()); }); 回答1: The datetime type is transformed into an actual Javascript date in Waterline (the Sails ORM). So it needs to be compared against a date object, not a string.

npm install jquery error / saveError ENOENT / Invalid dependency

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问题 I'm having trouble to resolve this issue. I've searched around but not getting anywhere. I've just started learning MEAN Stack. I'm trying to install all components for the Stack. (I currently have programs installed for Python Stack and Ruby Stack). Not sure if those will have anything to do with my problem. I'm still new to programming. Any info would be greatly appreciated. Here is what I'm running currently: MacOS Sierra v10.12.5 Node v8.0.0 npm v5.0.0 I've installed: $ npm install

Simple way to upload image with node.js and express?

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I've found few articles explaining the process but most of them are not up do date. How do you handle image upload in node.js? I use busboy middleware in express to parse out images in a multipart/form-data request and it works pretty nice. My code looks something like: const busboy = require('connect-busboy'); //... app.use(busboy()); app.use(function parseUploadMW(req,res,next){ req.busboy.on('file', function onFile(fieldname, file, filename, encoding, mimetype) { file.fileRead = []; file.on('data', function onData(chunk) { this.fileRead.push(chunk); }); file.on('error', function onError(err

Uncaught ReferenceError: angular is not defined - Mean.IO

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问题 I have followed the steps to install mean.io, but when I browse the localhost:3000 I get a blank page and when I open the console I get a list of files pointing to the same error: Uncaught ReferenceError: angular is not defined my issue is something similar to this, but I re-installed bower and it didn't work I'm still getting the error. I'm trying to install this in ubuntu 14.04 this is the screen I get: Do I need to perform some sort of modification to any script, file reference or

MongoDB Best way to pair and delete sequential database entries

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问题 Okay so let's say I'm making a game of blind war! Users A & B have x amount of soldiers There are currently 0 DB docs. User A sends 50 soldiers making a DB doc User B sends 62 soldiers after user A! This creates a new DB doc. I need the most effective/scalable way to lookup user A's doc, compare it to User B's doc then delete both docs! (After returning the result of course) Here's the problem! I could potentially have 10,000+ users sending soldiers at relatively the same time! How can I

Node not connecting to Mongo more than once

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Trying to set up MEAN server, following this tutorial: https://hackhands.com/mongodb-crud-mvc-way-with-passport-authentication/ Using this git: https://github.com/Hitman666/MEAN_MVC_3rdTutorial First time I connect to database, it works fine. After CTRL+C and then running "node server" again, I get this error: c:\mean2\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\base.js:246 throw message; ^ TypeError: Cannot read property 'length' of undefined at processResults (c:\mean2\node_modules\mongoose\node_modules\mongodb\lib\mongodb\db.js:1581:31) at c:\mean2\node_modules

ExpressJS variables in AngularJS - Mean Stack

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问题 I am building a MEAN application, one issue I have is that I want to give my users some sort of control over the routes used. So I want my server side code (expressJS) to set some variables in my client side code. Essentially I want to be able to generate my client side JS from my server side code. for example, in PHP I would probably do something along the lines of <?php echo <script> echo var test = $test echo </script> ?> I am not talking about binding, the variables only need to be set at

Uncaught SyntaxError: Unexpected token U in JSON at position 0 at JSON.parse (<anonymous>) at Response.Body.json

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I am working on an angular2 project. I am stuck with these errors. The error occured when I tried to send the JSON objects to the backend. It may be due the parsing of JSON objects. I am new to angualar, so please do help Signup.service.ts import {Injectable} from '@angular/core'; import {Http, Headers} from '@angular/http'; import 'rxjs/add/operator/map' ; @Injectable() export class SignupService{ constructor (private http: Http){} insertform(newreg: any ){ console.log(); var headers = new Headers (); headers.append('Content-Type','application/json'); return this.http.post('http://localhost

Mongo and Node.js: Finding a document by _id using a UUID (GUID)

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I'm developing a restAPI using node.js and i'm trying to query a mongo collection. I can query using strings (for example "companyname") but I need to be able to query the "_id" element in the document. In mongo the _id is currently stored like this (as a GUID): { "_id" : new BinData(3, "MH+t3q6PD0SxVR5z7/pzfw=="), "companyname" : "TestCompany", "databasename" : "TestDataBase", } This is what my current GET method looks like: exports.getBusinessCardData = function(req, res) { var id = req.params.id; //"id" = MH+t3q6PD0SxVR5z7/pzfw== tradeShowAdminDB.collection('clients', function(err,