node.js - 使用 Node.js Sequelize 和 Hooks 实现触发器

Question

我正在尝试创建一个钩子(Hook)，在为记录创建主键后应该调用该钩子(Hook)。我正在尝试使用插入的列(包括主键)的组合来生成一个数字。实例钩子(Hook)似乎被调用，而全局钩子(Hook)没有被调用，但即使我看到钩子(Hook)被调用，字段仍然返回 null:

module.exports = function(sequelize, DataTypes) {
  var store = sequelize.define('store', {
    storenumber: DataTypes.STRING(30), //remove
    storespecificationid: DataTypes.INTEGER,
    storetypeid: DataTypes.INTEGER,
    storename: DataTypes.STRING(20), //remove
    address: DataTypes.STRING(30),
    city: DataTypes.STRING(30),
    state: DataTypes.STRING(30),
    zipcode: DataTypes.STRING(30)
  }, {
    classMethods: {
      associate: function(models) {
          // associations can be defined here
      },
      hooks: {
      /*this is not getting called*/
          afterCreate: function(store){
              let strnumber = store.storetypeid + store.storespecificationid + store.id;
              store.updateAttributes({ storenumber:  strnumber });
          }
      }
    }
  });

  /*
  This seems to be called
  store.afterCreate(function(store) {
      let strnumber = store.storetypeid + store.storespecificationid + store.id;
              store.updateAttributes({ storenumber:  strnumber });
    });
    */

  return store;
};

有人可以阐明我做错了什么吗？

Answer 1

我认为你有一个额外的对象定义了 classMethods

尝试下面的架构

   module.exports = function(sequelize, DataTypes) {
   var store = sequelize.define('store', {
    storenumber: DataTypes.STRING(30), //remove
    storespecificationid: DataTypes.INTEGER,
    storetypeid: DataTypes.INTEGER,
    storename: DataTypes.STRING(20), //remove
    address: DataTypes.STRING(30),
    city: DataTypes.STRING(30),
    state: DataTypes.STRING(30),
    zipcode: DataTypes.STRING(30)
  }, {

      associate: function(models) {
          // associations can be defined here
      },
      hooks: {
      /*this is not getting called*/
          afterCreate: function(store){
              let strnumber = store.storetypeid + store.storespecificationid + store.id;
              store.updateAttributes({ storenumber:  strnumber });
          }
      }

  });