mean-stack | 易学教程

How to debug Mongoose and MongoDB in a MEAN stack?

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问题 I'm learning the MEAN stack and I'm using npm start to run my application. I have some issues with Mongoose and MongoDB but all I get is POST /page 500 63.925 ms - 961 This is the directory structure of my app, based on this tutorial: HTML views/ Angular.js public/javascript/ Express.js routes/ Node.js app.js Mongoose js models/, connected in app.js Mongo db connected in app.js What can I do to get helpful Mongoose and MongDB debug messages? 回答1: Using node-inspector is very helpful. This

Which is the best way(method) to host an mean application which is developed using Nodejs,Angularjs,Mongodb

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I am new to this Web development. I need to know the different ways in which the application i developed can be hosted Myonara Here is a rough checklist with links: For a MEAN-Stack you start with the node.js Installation , which delivers the command framework for the rest. When you start from scratch, my recommendation for the next step is to install Angular 2 with the @angular/cli Package. When you are familiar with the FrontEnd in Angular 2, you can install the expressjs server following this post . So the backend and the frontend are there, but they have to talk to each other with e.g. the

How to switch controller values from ng-include in angularjs?

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I am using angularjs. i have one header.html and I have merged that html page into another html using ng-include. Also, I have one dropdown list in header.html and I want the selected value (from dropdown) list to be displayed. How can I do this? header.html <html ng-app="app" > <head> <script src="assets/js/jquery-2.1.4.min.js"></script> <script src="controller/headerctrl.js"></script> </head> <body ng-controller="headerctrl"> <select id="valueid" class="form-control" required typeof="text" ng-model="valuselect" form="Floorform" > <option value="">Select</option> <option value="1">One</option

Angular ng-repeat filter on subarray

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Using Angular, I'm trying to filter using ng-repeat on FactorName given the following schema. Filtering using <... ng-model="query.Factors.FactorName" ...> doesn't work (not surprisingly). I haven't seen literature on anyone trying to filter in this way. Does Angular support filtering based on a subarray element property ? [ { "Name":"1", "Factors":[ { "FactorName":"FactorOne", "Type":"SomeType" }, { "FactorName":"FactorTwo", "Type":"SomeType" } ] }, { "Name":"2", "Factors":[ { "FactorName":"FactorThree", "Type":"SomeType" }, { "FactorName":"FactorFour", "Type":"SomeType" } ] } ] There is also

ReferenceError: Require is not defined (Webstorm)

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问题 Trying to do something incredibly basic, but running into a snag. var mongoose = require('mongoose'); mongoose.connect('mongodb://localhost/jetbrains'); var Product = mongoose.model('Product', {name: String}); var product = new Product({name: "WebStorm"}); product.save(function(err) { if(err){ console.log('failed'); }else{ console.log('saved'); } }); Continually getting ReferenceError: require is not defined at [file path]. I'm doing this in Webstorm 10. Trying to folow this tutorial on MEAN

ReferenceError: Require is not defined (Webstorm)

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Trying to do something incredibly basic, but running into a snag. var mongoose = require('mongoose'); mongoose.connect('mongodb://localhost/jetbrains'); var Product = mongoose.model('Product', {name: String}); var product = new Product({name: "WebStorm"}); product.save(function(err) { if(err){ console.log('failed'); }else{ console.log('saved'); } }); Continually getting ReferenceError: require is not defined at [file path]. I'm doing this in Webstorm 10. Trying to folow this tutorial on MEAN development in Webstorm. https://www.youtube.com/watch?v=JnMvok0Yks8 Ideas? André Pena You are probably

Download file from http post request - Angular 6

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UPDATED with res.send(data) instead of res.json(data) Using Angular 6 and NodeJS I am doing a web application. I am trying to download a file from a http post request. I send a request to the server like this. From my component I call a function in a service. In the component, I susbscribe to have the answer of the server and when I have it I create a new Blob with the response and I Use FileSaver to download the pdf. Now, when I received the answer from the server, the client sees it like an error whereas the status is 200. The error message is: "Http failure during parsing for http:/

Mongoose how to write a query with if condition?

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Suppose I have the following query: post.getSpecificDateRangeJobs = function(queryData, callback) { var matchCriteria = queryData.matchCriteria; var currentDate = new Date(); var match = { expireDate: { $gte: new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate()) } }; if (queryData.matchCriteria !== "") { match = { expireDate: { $gte: new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate()) }, $text: { $search: matchCriteria } }; } var pipeline = [ { $match: match }, { $group: { _id: null, thirtyHourAgo: { $sum: { $cond: [ { $gte: [ "

Mongoose how to write a query with if condition?

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问题 Suppose I have the following query: post.getSpecificDateRangeJobs = function(queryData, callback) { var matchCriteria = queryData.matchCriteria; var currentDate = new Date(); var match = { expireDate: { $gte: new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate()) } }; if (queryData.matchCriteria !== "") { match = { expireDate: { $gte: new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate()) }, $text: { $search: matchCriteria } }; } var

Expressjs to upload an image using multer saves an image in a weird format

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I am trying to build an API which will take in image so used multer for that purpose, I am getting a success for uploading an image but it saves in some weird format not the actual format I tried to save. I ll post the related code here. in app.js const multer = require('multer'); app.use(function(req, res, next) { //allow cross origin requests res.setHeader("Access-Control-Allow-Methods", "POST, PUT, OPTIONS, DELETE, GET"); res.header("Access-Control-Allow-Origin", "http://localhost:3001"); res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept"); res