sequelize.js

问题 When using the sequalize db:migrate command I am getting the following error. Looking at some of the previous comments on similar issues people said it is a dependency issue but whenever I run npm install mysql2 or npm install -g mysql2 I get the same error. larry@DESKTOP-NSSNPRR:/mnt/c/Users/larry/Desktop/node/AAF-NodeJS$ sequelize db:migrate Sequelize CLI [Node: 10.1.0, CLI: 4.0.0, ORM: 4.37.10] (node:2241) ExperimentalWarning: The fs.promises API is experimental Loaded configuration file

问题 When using the sequalize db:migrate command I am getting the following error. Looking at some of the previous comments on similar issues people said it is a dependency issue but whenever I run npm install mysql2 or npm install -g mysql2 I get the same error. larry@DESKTOP-NSSNPRR:/mnt/c/Users/larry/Desktop/node/AAF-NodeJS$ sequelize db:migrate Sequelize CLI [Node: 10.1.0, CLI: 4.0.0, ORM: 4.37.10] (node:2241) ExperimentalWarning: The fs.promises API is experimental Loaded configuration file

问题 How to correctly drop and then recreate ENUM type with sequelize for Postgres in migrations? For example this migration doesn't drop enum_Users_status enum... so any attempts to recreate/change status values after they have been once created fail. module.exports = { up: function (queryInterface, DataTypes) { queryInterface.createTable('Users', { //... status: { type: DataTypes.ENUM, values: [ 'online', 'offline', ], defaultValue: 'online' } //... }) }, down: function (queryInterface) {

问题 How to correctly drop and then recreate ENUM type with sequelize for Postgres in migrations? For example this migration doesn't drop enum_Users_status enum... so any attempts to recreate/change status values after they have been once created fail. module.exports = { up: function (queryInterface, DataTypes) { queryInterface.createTable('Users', { //... status: { type: DataTypes.ENUM, values: [ 'online', 'offline', ], defaultValue: 'online' } //... }) }, down: function (queryInterface) {

问题 I am confused and I hope you can help me. I am building an app in node.js using express.js and sequelize for my ORM. I have created a model with the following code: "use strict"; module.exports = function(sequelize, DataTypes) { var User = sequelize.define("User", { username: DataTypes.STRING }); return User; }; My route looks like this: router.get('/', function (req, res) { models.User.findAll({ }).then(function(users) { res.render('index', { title: 'Project Insight', users: users }); }); })

问题 I am not able to connect to a remote mysql server using sequelize but I am able to ssh into the machine and connect to mysql. How do I make Sequelize connect to mysql server over ssh rather than directly in node? 回答1: You set up an SSH tunnel to your server, which listens on (for example) port 33060: ssh -NL 33060:localhost:3306 yourserver In another window/terminal, you can use the MySQL client (assuming that it's installed locally) to connect to the remote MySQL server over the SSH tunnel:

问题 I currently have a backend where i can upload multiple images using multer. these images are passed through sharp to resize the images to create a full and thumbnail image. An entry of the post is stored in my posts table in my database and the fileName of the images is also stored in Post_Images table in my database. My problem is that i am currently using multer diskStorage to store my images on my disk and now i want to store the images on AWS S3. I was trying to implement this but it did

问题 I currently have a backend where i can upload multiple images using multer. these images are passed through sharp to resize the images to create a full and thumbnail image. An entry of the post is stored in my posts table in my database and the fileName of the images is also stored in Post_Images table in my database. My problem is that i am currently using multer diskStorage to store my images on my disk and now i want to store the images on AWS S3. I was trying to implement this but it did

问题 I currently have a backend where i can upload multiple images using multer. these images are passed through sharp to resize the images to create a full and thumbnail image. An entry of the post is stored in my posts table in my database and the fileName of the images is also stored in Post_Images table in my database. My problem is that i am currently using multer diskStorage to store my images on my disk and now i want to store the images on AWS S3. I was trying to implement this but it did

问题 I am rewriting an app , with existing database using sequelize. I have converted existing table, to models in sequelize as below. I have employee table, and access type model, which has read, write, or both in an admin access. all of these access are tracked for employee in and employee access table. but there is a employee group table also, which keeps track , if employee belongs to a particular group and their access type. how do i query using sequelize , to get particular employee access