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Express.js and Sequelize: does not define models


Express.js and Sequelize: does not define models

By : Salah
Date : November 25 2020, 09:00 AM
it helps some times I am developing small app using express.js and sequelize. Now I have a problem. I go with this tutorial and stucked. , The bug is in models/index.js. In there you have:
code :
...
.filter(function(file) {
  return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
})
...
console.log('KEYS TO models: ' + JSON.stringify(Object.keys(models)));


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Sequelize Express multiple models

Sequelize Express multiple models


By : user3559383
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I can't seem to figure out how to include multiple models. , At first glance, you can use eager loading with multiple models:
code :
models.TabConfig.findAll({
    include: [{
        model: models.ServerConfig,
        include: [models.Points]
    }]
})
[{
    some: 'tab',
    saved: 'property',
    Servers: [{
        some: 'server',
        saved: 'property',
        Points: [...]
    }, ...]
}, ...]
Different ways to define models in Sequelize

Different ways to define models in Sequelize


By : Santiago Fuentes Cru
Date : March 29 2020, 07:55 AM
hope this fix your issue For the purpose of the static code analysis utility I've started to build, I assume the define() method is always used to define the models.
The only thing you should take into account is that there are 2 general ways to define model fields:
code :
sequelize.define('Locale', {
    locale: DataTypes.STRING
});
sequelize.define('Locale', {
    locale: {
        type: DataTypes.STRING
    }
});
The ambiguous error occurs while using the models.sequelize.col () in the include in sequelize(node.js express)

The ambiguous error occurs while using the models.sequelize.col () in the include in sequelize(node.js express)


By : JFlanagan
Date : March 29 2020, 07:55 AM
will be helpful for those in need Appearently both Board and Comment have a _no column? In that case you need to specify which one you want to count, fx: models.sequelize.col('board._no')) (make sure the table name matches the pluralization and capitalization of the table in the rest of the query)
Node, Sequelize, Mysql - How to define collation and charset to models?

Node, Sequelize, Mysql - How to define collation and charset to models?


By : user6371894
Date : March 29 2020, 07:55 AM
With these it helps Im using sequelize /w node and node-mysql. , In the part where u define sequelize
code :
var sequelize = new Sequelize('database', 'username', 'password', {
  define: {
    charset: 'utf8',
    collate: 'utf8_general_ci', 
    timestamps: true
  },
  logging:false
});
sequelize.define('songs', {
  name: DataTypes.STRING,
  link: DataTypes.STRING,
  artist: DataTypes.STRING,
  lyrics: DataTypes.TEXT,
  writer: DataTypes.STRING,
  composer: DataTypes.STRING
}, {
  charset: 'utf8',
  collate: 'utf8_unicode_ci'
});
express and sequelize - load unrelated models in same route

express and sequelize - load unrelated models in same route


By : Catalin Donosa
Date : March 29 2020, 07:55 AM
help you fix your problem So based on what I see, I think that you lack some understanding of promises.
This part of the code:
code :
bus.findAll({include: [{model: family, include: [person]}]})
      .then(buses => buses.map(addCount))
volunteerType.findAll()
.then(volunteerTypes => volunteerType.findAll())
exports.get = (request, response) => {
    return Promise.all([
        // Grab and mutate busses
        bus.findAll({
            include: [{
                model: family, include: [person]
            }]
        }).
        then(buses => buses.map(addCount)),
        // grab volunteerType
        volunteerType.findAll()
    ]).
    // This now returns an Array with the resolution of each promise
    then( ([busses, volunteerType]) =>  
        response.render('pages/register', {
            buses, 
            volunteerTypes
        })
    )
};
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