sequelize-delete-example/models/user.js

'use strict';
const {
  Model
} = require('sequelize');
module.exports = (sequelize, DataTypes) => {
  class user extends Model {
    static associate(models) {
      user.hasMany(models.article, {
        foreignKey: 'submittedBy',
        onDelete: 'SET NULL',
        onUpdate: 'CASCADE',
      })
      user.hasMany(models.article, {
        foreignKey: 'reviewedBy',
        as: 'reviewedArticles',
        onDelete: 'SET NULL',
        onUpdate: 'CASCADE',
      })
    }
  }
  user.init({
    name: DataTypes.STRING
  }, {
    sequelize,
    modelName: 'user',
    tableName: 'users',
  });
  return user;
};