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Query many to many with Sequelize in Nodejs/Express application


Query many to many with Sequelize in Nodejs/Express application

By : Lalith
Date : October 21 2020, 08:10 AM
hop of those help? The problem, as it turns out, was that I had the foreign keys reversed in the two association definitions in app.js
code :
Media.belongsToMany(Category, {
  through: {
    model: MediaCategory,
    unique: false
  },
  foreignKey: '*media_id* not *category_id*',
  constraints: false
});

Category.belongsToMany(Media, {
  through: {
    model: MediaCategory,
    unique: false
  },
  foreignKey: '*category_id* not *media_id*',
  constraints: false
});
 Category.findAll({
    include: [{
      model: Media
    }],
    where: {
      id: categoryID
    }
  })


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Error while Accessing mysql through Sequelize (Express/NodeJS)

Error while Accessing mysql through Sequelize (Express/NodeJS)


By : mamati
Date : March 29 2020, 07:55 AM
help you fix your problem There is no username in dbConfig. Replace user with username in your config. "dbConfig": { "driver": "mysql", "user": "root", ... var sequelize = new Sequelize( dbConfig.database, dbConfig.username,
Authentification NodeJS Sequelize Express

Authentification NodeJS Sequelize Express


By : RAMANDEEP SINGH RANA
Date : March 29 2020, 07:55 AM
hope this fix your issue The findOne method from sequelize return an instance object of the model. that means than you can't compare a password to an instance.
The second problem is the findOne method is asynchronous, you need to await it and have an async method.
code :
app.get('/login', async function (req, res, err) {           
    var whereUser = {
        login: req.query.login,
        password: req.query.password
    }      

   if (!req.query.login || !req.query.password) {
       res.send('login failed');
    } else {        
        // The following code return an instance of the user if it was found.
       const user = await UsrPerson.findOne({ where: whereUser }))

       // If the user was not found that means the credentials was wrong.
       if (user) {
           console.log("auth ok")
           req.session.user = "amy";
           req.session.admin = true;        
           res.send("login success!");
       } else {
           console.log("ERROR")
           res.send(err)
       }
   } 
});
sequelize raw query in express app

sequelize raw query in express app


By : bright son
Date : March 29 2020, 07:55 AM
help you fix your problem I'm trying to call a simple sequelize raw query to get all the users in the users table but I am getting the error. , Had to change
code :
const db  = require('../models/index').db;
const db  = require('../models/index');
Query on $.get(), Express and JSON in NodeJS application

Query on $.get(), Express and JSON in NodeJS application


By : user1653425
Date : March 29 2020, 07:55 AM
I wish did fix the issue. There's no JSON that I'm aware of in your request. The object you are passing to $.get(url, dataObject) is put into the query string as prop=val pairs. The Express body-parser module, parses the query string for you and puts the results into req.query for you.
The data in the query string is query string encoded by jQuery and then decoded and parsed by the body-parser module in Express.
How would I do this SQL query with nodejs sequelize?

How would I do this SQL query with nodejs sequelize?


By : user2656651
Date : March 29 2020, 07:55 AM
wish helps you you can use the raw sql query in sequelize by using query method.
meaning you can use this as your query directly by
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