Question

我在尝试用嵌套引用填充文档时迷失了

首先我有Group文档，嵌套子文档Group＆gt;角色＆gt;权限使用以下模型定义：

group.model.js

const PermissionSchema = new Schema({
  resourceName: { type: String, trim: true },
  authorizedActions: [ { type: String, trim: true }]},
  { _id: false }
);

const RoleSchema = new Schema({
  name: { type: String },
  permissions: [PermissionSchema]
});

/**
 * Group Schema
 */
const GroupSchema = new Schema({
  name: { type: String, unique: true, required: true },
  roles: [RoleSchema]
});

然后我有一个用户文档，每个用户将有多个组/角色参考

用户/ model.js

const RoleSchema = new mongoose.Schema({ roleId: { type: ObjectId } }, { _id: false })

const GroupSchema = new mongoose.Schema({
  groupId: { type: ObjectId }, 
  roles: [RoleSchema] }, { _id: false })

const UserSchema = new mongoose.Schema({
  username: { type: String, unique: true, required: true },
  groups: [GroupSchema],
});

使用User.get（id）加载用户时，我想用Groups / Roles文档值填充用户引用。

UserSchema.statics = {
  /**
   * Get user
   * @param {ObjectId} id - The objectId of user.
   * @returns {Promise<User, APIError>}
   */
  get(id) {
      return this.findById(id)
      .populate('WHAT SHOULD I WRITE HERE ?)
      .exec()
      .then((user) => {
        if (user) { return user; }
        const err = new APIError('No such user exists!', httpStatus.NOT_FOUND);
        return Promise.reject(err);
      });
  },

1-我应该改变模特吗？ 2-我应该如何编写populate（）路径？

感谢您的反馈

node mongoose是否可以填充子文档？

0 个答案: