用非id的字段填充猫鼬模型 [英] Populate a mongoose model with a field that isn't an id

问题描述

是否可以用不是_id的参考模型字段填充猫鼬模型...例如用户名.

Is it possible to populate a mongoose model with a field of a reference model that isn't the _id ... e.g. a username.

类似

var personSchema = Schema({
  _id     : Number,
  name    : String,
  age     : Number,
  stories : { type: String, field: "username", ref: 'Story' }
});

推荐答案

您可以使用populate() API. 该API更加灵活，您无需在架构中指定ref和field.

You may use the populate() API. The API is more flexible, you don't have to specify ref and field in the Schema.

http://mongoosejs.com/docs/api.html#document_Document-populate http://mongoosejs.com/docs/api.html#model_Model.populate

您可以与find()混合搭配.

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