sequelize 和 sequelize-hierarchy：如何在模型 getter 中执行访问器？

Question

我在我的应用中使用 sequelize 和 sequelize-hierarchy，并且已经部分定义了一个模型，例如：

ancestors : {
    type: orm.Sequelize.VIRTUAL,
    get: function() { return 'TODO how return getAncestors here?' }
  }

在getter中，如何访问sequelize-hierarchy提供的getAncestors()方法？

Answer 1

@leroydev 感谢记录;)

正如开发者在问题中对我说的那样：

I'm afraid this isn't possible. You'd need to load the ancestors first with include. A getter can't execute asynchronously, and therefore can't fetch the ancestors from the database. When you use include, it fetches them at the same time as the main query.

This is a limitation of Sequelize (actually I think quite a reasonable one). I'm afraid there's nothing I can do about it, so am closing this PR.

参考：https://github.com/overlookmotel/sequelize-hierarchy/issues/20

sequelize 和 sequelize-hierarchy：如何在模型 getter 中执行访问器？

sequelize and sequelize-hierarchy: How do I execute an accessor in a model getter?

javascript

node.js

sequelize.js