import { Prop, Schema, SchemaFactory } from "@nestjs/mongoose"

import { Document, Types } from 'mongoose';

import { ApiProperty } from '@nestjs/swagger'

    @Prop({ type: Types.ObjectId, ref: 'Role', default: null })//一个角色

    @ApiProperty({

        description: '角色id',

    })

    role: any;

    @Prop({ type: Types.ObjectId, ref: 'Deptbase', default: null })//一个部门

    @ApiProperty({

        description: '部门id',

    })

    dept: any;

import { Prop, Schema, SchemaFactory } from "@nestjs/mongoose"

import { Document, Types } from 'mongoose';

import { ApiProperty } from '@nestjs/swagger'

    @Prop({ type: [Types.ObjectId], default: [], ref: "Menu" })//多个权限

    @ApiProperty({

        description: '权限id',

    })

    authority: any[];

     this.userModel.paginate(queryParams, {

            populate: [{

                path: 'role', select: '_id name', match: { "isDelete": false

         }

            },

            {

                path: 'dept', select: '_id name code'

            }],

            select: '_id uid name status role dept creator createdAt',//显示字段，不懂查mongoose官网populate

            page: page > 0 ? page : 1,

            limit: size > 0 ? size : 20,

            sort: '-createdAt'

        })
 path中的role,dept字段，user.model中有定义

this.roleModel.findOne({ _id: Types.ObjectId(roleId) }, { _id: 1, authority: 1 }).populate({

            path: 'authority',//authority在role.model.ts中定义

            select: "-creator -createTime -createdAt -updatedAt -opreator -isDelete",//加-为不显示字段

            match: {

                "isDelete": false,

                "appId": Types.ObjectId(appId)

            },

            options: {

                $sort: {

                    createdAt: 1

                }

            }

        })