错误:检测到由tx-混合器引发的循环依赖项(属性键："firstName")。
错误:检测到由tx-混合器引发的循环依赖项(属性键："firstName")。
提问于 2021-02-15 08:38:10
我正在使用一个很棒的库：https://www.npmjs.com/package/ts-mixer
整个追溯过程如下：
(node:22654) UnhandledPromiseRejectionWarning: Error: A circular dependency has been detected (property key: "firstName"). Please, make sure that each side of a bidirectional relationships are using lazy resolvers ("type: () => ClassType").
at SchemaObjectFactory.createNotBuiltInTypeReference (/Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:212:19)
at SchemaObjectFactory.mergePropertyWithMetadata (/Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:143:25)
at /Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:79:35
at Array.map (<anonymous>)
at SchemaObjectFactory.extractPropertiesFromType (/Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:78:52)
at SchemaObjectFactory.exploreModelSchema (/Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:92:41)
at /Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:33:36
at Array.map (<anonymous>)
at SchemaObjectFactory.createFromModel (/Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:20:45)
at exploreApiParametersMetadata (/Users/albert/Documents/projects/albert/rlx/node_modules/@nestjs/swagger/dist/explorers/api-parameters.explorer.js:33:55)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:22654) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:22654) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.register-common-user.dto.ts
export class RegisterCommonUserDto {
@decorate(ApiProperty())
@decorate(IsNotEmpty())
@decorate(IsString())
firstName: string;
// @decorate(ApiProperty())
@decorate(IsNotEmpty())
@decorate(IsString())
lastName: string;
// @decorate(ApiProperty({enum: EUserRoleName}))
@decorate(IsNotEmpty())
@decorate(IsEnum(EUserRoleName))
roleName: EUserRoleName;
// @decorate(ApiProperty())
@decorate(IsNotEmpty())
@decorate(IsPhoneNumber())
phoneNumber: string;
// @decorate(ApiProperty())
@decorate(IsNotEmpty())
@decorate(IsEmail())
email: string;
}register-user.dto.ts
export class RegisterUserDto extends Mixin(
RegisterFighterDto,
RegisterCommonUserDto,
RegisterLocationProviderDto,
) {}方法：
@Post('register')
public async registerUser(@Body() registerUserDto: RegisterUserDto): Promise<any> {
// code
}是什么引起了这个问题？这肯定与@ApiProperty装饰器包装在decorate中有关，因为当我注释掉这一行时，错误就消失了。但是在这种情况下，装饰师不会被继承，这就是使用ts混合库的全部意义。
编辑：
有什么想法吗？
编辑：
这些小人是不相容还是怎么的？
回答 1
Stack Overflow用户
发布于 2021-11-26 07:18:34
最近，我学习Nest在尝试使用Swagger时也有同样的问题。这是我的全部追踪，如下所示：
Error: A circular dependency has been detected (property key: "user"). Please, make sure that each side of a bidirectional relationships are using lazy resolvers ("type: () => ClassType").
at SchemaObjectFactory.createNotBuiltInTypeReference (/Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:170:19)
at SchemaObjectFactory.createSchemaMetadata (/Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:277:25)
at SchemaObjectFactory.mergePropertyWithMetadata (/Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:122:21)
at /Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:79:35
at Array.map (<anonymous>)
at SchemaObjectFactory.extractPropertiesFromType (/Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:78:52)
at SchemaObjectFactory.exploreModelSchema (/Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/services/schema-object-factory.js:92:41)
at /Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/swagger-explorer.js:217:64
at Array.forEach (<anonymous>)
at SwaggerExplorer.registerExtraModels (/Users/wujie/Code/realworld/nestjs-realworld-example-app/node_modules/@nestjs/swagger/dist/swagger-explorer.js:217:21)分析错误代码信息，我发现问题是装饰器ApiExtraModels()，我编写的代码是：
import { applyDecorators, Type } from '@nestjs/common';
import { ApiOkResponse, ApiExtraModels, getSchemaPath } from '@nestjs/swagger';
import { ApiUserResDto, PaginatedDto } from './dto/api-res.dto';
/** 用户信息返回限定装饰器 */
export const ApiUserResponse = <TModel extends Type<any>>(model: TModel) => {
return applyDecorators(
ApiOkResponse({
schema: {
title: `UserResponseOf${model.name}`,
allOf: [
{ $ref: getSchemaPath(ApiUserResDto) },
{
properties: {
user: {
type: 'object',
$ref: getSchemaPath(model)
}
}
}
]
}
}),
ApiExtraModels(ApiUserResDto),
ApiExtraModels(model)
);
};`apiUserResDto类是：
export class ApiUserResDto<Dto> {
user: Dto;
}根据cli提示，只要将ApiExtraModels(ApiUserResDto)改为ApiExtraModels(() => ApiUserResDto)，就可以解决这个问题。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/66204871
复制相关文章
相似问题
腾讯云开发者
