Sequelize模型中的自动填充字段？

我正在为MySQL中的'用户'表创建模型。理想情况下，我希望有一个“ firstName”和“ lastName”字段以及一个“ fullName”，这是其他2的添加。是否可以通过编程将其包含在模型中，或者我必须在插入时进行处理？

const User = sequelize.define("users", {
  id: {
    type: Sequelize.INTEGER,
    autoIncrement: true,
    allowNull: false,
    primaryKey: true,
  },
  firstName: {
    type: Sequelize.STRING(50),
    allowNull: false,
  },
  lastName: {
    type: Sequelize.STRING(50),
    allowNull: false,
  },
  fullName: {
    type: Sequelize.STRING(50),
    allowNull: false,
    // something that makes 'firstName' + ' ' + 'lastName' ❤️

  },
  email: {
    type: Sequelize.INTEGER(30),
    allowNull: false,
  },
});

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