homepage.js/models/guestbook.js

const { Model } = require('sequelize');

class Guestbook extends Model {
  /**
   * Helper method for defining associations.
   * This method is not a part of Sequelize lifecycle.
   * The `models/index` file will call this method automatically.
   */
  static associate(models) {
    // define association here
  }
}

const init = (sequelize, DataTypes) => {
  let model = Guestbook.init({
    id: {
      type: DataTypes.BIGINT(11),
      primaryKey: true,
      autoIncrement: true,
      allowNull: false
    },
    name: {
      type: DataTypes.TEXT,
      allowNull: false
    },
    email: DataTypes.TEXT,
    text: {
      type: DataTypes.TEXT,
      allowNull: false
    },
    hidemail: {
      type: DataTypes.BOOLEAN,
      allowNull: false
    },
    ip: {
      type: DataTypes.TEXT,
      allowNull: false
    },
    hidden: {
      type: DataTypes.BOOLEAN,
      allowNull: false
    },
    time: {
      type: DataTypes.BIGINT
    }
  }, {
    sequelize,
    modelName: 'Guestbook',
    tableName: 'guestbook'
  });
  return model;
};

init.class = Guestbook;
return init;