尚未为模型“ResourceSchema”注册架构。 - 嵌套js

Posted 2023-03-10

【中文标题】尚未为模型“ResourceSchema”注册架构。 - 嵌套js

【英文标题】：Schema hasn't been registered for model "ResourceSchema". - nest js

【发布时间】：2019-12-17 06:20:35

【问题描述】：

大家好，我正在尝试使用 Nest js 和 mongodb 构建 api。

我正在尝试在架构之间建立关系，当我尝试从角色填充资源时出现错误

[Nest] 12308   - 2019-08-09 4:22 PM   [ExceptionsHandler] Schema hasn't been registered for model "ResourceSchema".
Use mongoose.model(name, schema) +6998ms
MissingSchemaError: Schema hasn't been registered for model "ResourceSchema".
Use mongoose.model(name, schema)

我的角色架构

import * as mongoose from 'mongoose';
import ResourceModel from './resourceSchema';

const Schema = mongoose.Schema;

export const RoleSchema = new Schema(
  name: 
    type: String,
    unique: true,
    required: [true, 'Role name is required'],
  ,
  resources: [
    type: mongoose.Schema.Types.ObjectId,
    ref: 'ResourceModel',
  ],
  permissions: [type: String],
);

我的资源架构

import * as mongoose from 'mongoose';

const Schema = mongoose.Schema;

export const ResourceSchema = new Schema(
  name: 
    type: String,
    unique: true,
    required: [true, 'Role type is required'],
  ,
  routingInfo: type: String,
  iconName: type: String,
  iconType: type: String,
  subResources: [type: mongoose.Schema.Types.Mixed, ref: 'ResourceModel'],
);

export const ResourceModel = mongoose.model('Resource', ResourceSchema);

我的角色 service.ts 填充资源数组

...

@Injectable()
export class RoleService 
  constructor(@InjectModel('roles') private readonly roleModel: Model<Role>) 
  

  async findAll(): Promise<Role[]> 
    return await this.roleModel.find().populate(path: 'resources', Model: ResourceModel);
  

// also tried that
 async findAll(): Promise<Role[]> 
    return await this.roleModel.find().populate(path: 'resources', Model: ResourceSchema);
  

我的资源模块

import Module from '@nestjs/common';
import ResourcesController from './resources.controller';
import ResourcesService from './resources.service';
import MongooseModule from '@nestjs/mongoose';
import ResourceSchema from '../schemas/resourceSchema';
import ConfigService from '../config/config.service';
import AuthService from '../auth/auth.service';
import UsersService from '../users/users.service';
import UserSchema from '../schemas/userSchema';

@Module(
  imports: [MongooseModule.forFeature([name: 'users', schema: UserSchema]),
    MongooseModule.forFeature([name: 'resources', schema: ResourceSchema])],
  providers: [ResourcesService, UsersService, AuthService, ConfigService],
  controllers: [ResourcesController],
  exports: [ResourcesService],
)
export class ResourcesModule 

所以当我对邮递员执行 GET REQUEST 时，我得到了那个错误 谁能告诉我我做错了什么？？？？？？

感谢和vaced

【参考方案1】：

ResourceSchema 是模式，而不是模型。您需要为模型注册它，例如：

export const Resource = mongoose.model('Resource', ResourceSchema);

更改参考：

subResources: [type: mongoose.Schema.Types.Mixed, ref: 'Resource'],

他们将其导入您的服务并调用：

 return await this.roleModel.find().populate(path: 'resources', Model: Resource );

希望对您有所帮助。

【讨论】：

和裁判？应该仍然是Schema？仍然给我错误

啊，你也应该改变 ref。我忘记了

更改参考“资源”？

还应该更改 RoleSchema 中的资源。像魔术一样工作

我对猫鼬没有太多经验，但在文档中它说Note: ObjectId, Number, String, and Buffer are valid for use as refs. However, you should use ObjectId unless you are an advanced user and have a good reason for doing so。