如何在猫鼬中填充嵌套实体? [英] How to populate nested entities in mongoose?

问题描述

我有以下猫鼬模式结构

userSchema = new Schema({
    roles: [
        role: {type: Schema.Types.ObjectId, ref: 'Role' }
    ]
})

rolesSchema = new Schema({
  name: String,
  roleEntities: [
    {
      entity : {type: Schema.Types.ObjectId, ref: 'RoleEntity' },
      abilities : [{type: Schema.Types.ObjectId, ref: 'Ability' }]
    }
  ]
}

roleEntitiesSchema = new Schema({
  name: String
})

abilitiesSchema = new Schema({
  name: String
})

如何在对 USER 模型进行查找的同时填充所有这些嵌套文档?

How can i populate all these nested documents while doing a find on the USER model?

我尝试使用如下填充

User.find(ctx.request.query).populate(
      {path: 'roles.role'
      ,populate: { path: 'roleEntities.entity'}
    }).
    exec()

但它没有解析 roleEntities.entity

but it's not resolving roleEntities.entity

推荐答案

你可以尝试链式填充操作

You can try chaining populate operations

User.find()
.populate("roles.role")
.populate("roles.role.roleEntities.entity")

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