node.js - SequelizeDatabaseError - 缺少列 - 一对多关联

Question

我正在学习以下教程 here

一切正常，直到 Listing todo-items inside todos

向服务器发出获取请求时，我收到以下错误报告:

{"name":"SequelizeDatabaseError","parent":{"name":"error","length":104,"severity":"ERROR","code":"42703","position":"440","file":"parse_relation.c","line":"2743","routine":"errorMissingColumn","sql":"SELECT \"ItemSet\".\"id\", \"ItemSet\".\"title\", \"ItemSet\".\"createdAt\", \"ItemSet\".\"updatedAt\", \"items\".\"id\" AS \"items.id\", \"items\".\"content\" AS \"items.content\", \"items\".\"complete\" AS \"items.complete\", \"items\".\"createdAt\" AS \"items.createdAt\", \"items\".\"updatedAt\" AS \"items.updatedAt\", \"items\".\"itemSetId\" AS \"items.itemSetId\", \"items\".\"itemId\" AS \"items.itemId\" FROM \"ItemSets\" AS \"ItemSet\" LEFT OUTER JOIN \"Items\" AS \"items\" ON \"ItemSet\".\"id\" = \"items\".\"itemId\";"},"original":{"name":"error","length":104,"severity":"ERROR","code":"42703","position":"440","file":"parse_relation.c","line":"2743","routine":"errorMissingColumn","sql":"SELECT \"ItemSet\".\"id\", \"ItemSet\".\"title\", \"ItemSet\".\"createdAt\", \"ItemSet\".\"updatedAt\", \"items\".\"id\" AS \"items.id\", \"items\".\"content\" AS \"items.content\", \"items\".\"complete\" AS \"items.complete\", \"items\".\"createdAt\" AS \"items.createdAt\", \"items\".\"updatedAt\" AS \"items.updatedAt\", \"items\".\"itemSetId\" AS \"items.itemSetId\", \"items\".\"itemId\" AS \"items.itemId\" FROM \"ItemSets\" AS \"ItemSet\" LEFT OUTER JOIN \"Items\" AS \"items\" ON \"ItemSet\".\"id\" = \"items\".\"itemId\";"},"sql":"SELECT \"ItemSet\".\"id\", \"ItemSet\".\"title\", \"ItemSet\".\"createdAt\", \"ItemSet\".\"updatedAt\", \"items\".\"id\" AS \"items.id\", \"items\".\"content\" AS \"items.content\", \"items\".\"complete\" AS \"items.complete\", \"items\".\"createdAt\" AS \"items.createdAt\", \"items\".\"updatedAt\" AS \"items.updatedAt\", \"items\".\"itemSetId\" AS \"items.itemSetId\", \"items\".\"itemId\" AS \"items.itemId\" FROM \"ItemSets\" AS \"ItemSet\" LEFT OUTER JOIN \"Items\" AS \"items\" ON \"ItemSet\".\"id\" = \"items\".\"itemId\";"}

我对教程做了一些小的修改:

我使用 ItemSet ，而不是 ToDo

我使用 Item ，而不是 ToDoItem

理想情况下，我希望返回如下所示的内容:


我的代码在这里可用: https://github.com/AlexanderMcNulty/seq

Answer 1

我认为问题在于 itemId 模型中定义的 ItemSet。

ItemSet.associate = function(models) {
    ItemSet.hasMany(models.Item, {
      foreignKey: 'itemId',
      as: 'items',
    });
  };

我认为您没有在任何地方定义 itemId