for example const ProjectSchema = new mongoose.Schema ({) name : { type:String }, time : { type:Date, default:Date.now }, url : { type: String}, user : { type: Object}, proId : {type: String}, spaceId : {type: String}, description: {type: String...
exports.getAllStudent = function (req, res) { var rows = url.parse(req.url, true).query.rows; var page = url.parse(req.url, true).query.page; var sidx = url.parse(req.url, true).query.sidx; var sord = url.parse(req.url, true).query....
Room schema var Room = new Schema({ title: String, author: String, body: String, owners: [ { type: ObjectId, ref: User , index: true } ] }) Room.find({ owners: user }) first question: why can the query here be written this way? How...
1. A user created in the admin database in MongoDB that is used to connect to another database myBase; 2. Use mongoose to connect to MongoDB, when the connection address is mongodb: username:password@my-server myBase?authSource=admin 3. Unable ...
new Schema({ pid: {type: String, ref: product }, sid: {type: String, ref: sale }, })); suppose there are product and sale two collections pid and sid both specify user_id of the product and sale collections instead of _ id ...
Schema: the update I want to implement is to store the same carId, for the stopName in the stops array. How should I implement such batch updates in mongoose? Common Update on the Internet is for a single field, did not encounter such a case, please ...
:projectDao.js var mongoose = require( mongoose ) const Project = mongoose.model( Project ) exports.createProject = async(data) => { data.m.projectModelId=data.m.projectModel.split( , )[0] data.m.projectModelName=data.m.projectModel.spli...
2018-06-01T21:50:27.381+1000 I STORAGE [initandlisten] WiredTiger message [1527853827:381260][6025:0x7fffb1251380], txn-recover: Recovering log 88 through 89 2018-06-01T21:50:27.448+1000 I STORAGE [initandlisten] WiredTiger message [1527853827:448472][...
PageTagMapModel.getPageTagMapNum ({tag: single._id, status: normal }) returns the page_num found by the mongoose query, but if three lines of comments are used in the code, there is no page_num attribute in the resulting data. You can use = to assig...
The structure is shown in the figure. Steps is an array. Now you want to modify the count value of a specified date. ...
for example, if there is a relationship between an article and a tag, an article (page) has multiple tags (tag), and a tag (tag) can be shared by multiple article (page) < H2 > get the page list, hope to get the corresponding tag, then get the tag list...
the local startup project reported an error, the same code configuration, but there is no problem with others. solve the reason, { "exception ": "com.mongodb.MongoSocketWriteException: Exception sending messagerntat com.mongodb.connection.Interna...
function to be realized: 1. When the user clicks "join the shopping cart " in the interface, the front end will give a productId to the background, and the background will query the corresponding product information in the database according to the pr...
the domain.js code is as follows var mongoose = require( mongoose ) var moment = require( moment ) var Schema = mongoose.Schema function dateformat(val) { console.log( dateformat + val); return moment(val).format( YYYY-MM-DD ); } va...
the model is designed as follows const RegistrationSheet = mongoose.model( RegistrationSheet , new Schema({ doctorId: String, today: { time: String, date: { morning: [ { number:Number, patient: ...
my mongodb is a MMAPv1 engine, how to view and set lock granularity? ...
const UserSchema = new Schema({ userId:Schema.Types.ObjectId, username: String, mobile: String, password: String, remarks: String, createAt: {type: Date, default: Date.now}, updateAt: {type: Date, default: Date.now}, ...
< H2 > question < H2 > when find () is used in findAddUsers.js , the data can be read normally, but there is no data in return < H2 > Code < H2 > findAddUsers.js const mongoose = require( mongoose ) let Schema = mongoose.Schema let UserSchem...
createdTime: {type: Date, required: true, default: Date.now}, +30 endTime: {type: Date, required: true, default: Date.now + } how to implement Date.now + for half an hour ...
first of all, I have a club community table (collection); then I want to find the community with the Chinese character in its name according to the fuzzy search of the input Chinese character. For example: societies are: "Tianyue run " and "Tianyue V...
problem description at present, I have made a GUI interface with the Tkinter library, the main function is to read the data from the remote server, and then display it on the GUI interface. I read the remote data every 20 or 30 seconds. I use multi-th...
problem description tp5.1 workerman runs php server.php according to the manual and does not respond, as shown in the following figure server.php: php7.0.3publicserver.phppushworkerphp server.phpconsole: the boss who has used tp5.1 workerman, ple...
1, the three major components of JavaScript-ECMAScript, DOM (document object model, corresponding to document object), and BOM (browser object model, corresponding to window object). 2. Mini Program supports ECMAScript, but does not support document,win...
I use pyinstaller to package the environment is python2.7.11,pyinstaller 3.3.1. there are only these two py files manage_utils.py mainform.py.,pyinstaller -F mainform.py, , how did this happen? And the path of program execution seems to have chang...
my system is windows8, and now I am developing Mini Program with mpvue. After downloading demo, it is no problem to use npm run dev to change the contents inside, and cmd can also be displayed successfully. But I have been using cmd:npm run dev since I ...