そう
コンソール:
yarn dev
yarn run v1.22.10
$ nodemon dist/index.js
[nodemon] 2.0.7
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node dist/index.js`
[discovery] ORM entity discovery started, using ReflectMetadataProvider
[discovery] - processing entity Post
[discovery] - entity discovery finished, found 1 entities, took 21 ms
[info] MikroORM successfully connected to database postgres on postgresql://postgres:*****@127.0.0.1:5432
[query] begin
[query] insert into "post" ("created_at", "title", "updated_at") values ('2021-04-05T21:04:23.126Z', 'my first post', '2021-04-05T21:04:23.126Z') returning "_id" [took 12 ms]
[query] rollback
TableNotFoundException: insert into "post" ("created_at", "title", "updated_at") values ('2021-04-05T21:04:23.126Z', 'my first post', '2021-04-05T21:04:23.126Z') returning "_id" - relation "post" does not exist
at PostgreSqlExceptionConverter.convertException (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\postgresql\PostgreSqlExceptionConverter.js:36:24)
at PostgreSqlDriver.convertException (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\drivers\DatabaseDriver.js:194:54)
at P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\drivers\DatabaseDriver.js:198:24
at processTicksAndRejections (internal/process/task_queues.js:93:5)
at async PostgreSqlDriver.nativeInsert (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\knex\AbstractSqlDriver.js:150:21)
at async ChangeSetPersister.persistNewEntity (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\unit-of-work\ChangeSetPersister.js:55:21)
at async ChangeSetPersister.executeInserts (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\unit-of-work\ChangeSetPersister.js:24:13)
at async UnitOfWork.commitCreateChangeSets (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\unit-of-work\UnitOfWork.js:496:9)
at async UnitOfWork.persistToDatabase (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\unit-of-work\UnitOfWork.js:458:13)
at async PostgreSqlConnection.transactional (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\knex\AbstractSqlConnection.js:53:25)
at async UnitOfWork.commit (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\unit-of-work\UnitOfWork.js:183:17)
at async SqlEntityManager.flush (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\EntityManager.js:486:9)
at async SqlEntityManager.persistAndFlush (P:\.Projektek\lireddit-server\node_modules\@mikro-orm\core\EntityManager.js:438:9)
previous error: insert into "post" ("created_at", "title", "updated_at") values ('2021-04-05T21:04:23.126Z', 'my
first post', '2021-04-05T21:04:23.126Z') returning "_id" - relation "post" does not exist
at Parser.parseErrorMessage (P:\.Projektek\lireddit-server\node_modules\pg-protocol\dist\parser.js:278:15)
at Parser.handlePacket (P:\.Projektek\lireddit-server\node_modules\pg-protocol\dist\parser.js:126:29)
at Parser.parse (P:\.Projektek\lireddit-server\node_modules\pg-protocol\dist\parser.js:39:38)
at Socket.<anonymous> (P:\.Projektek\lireddit-server\node_modules\pg-protocol\dist\index.js:10:42)
at Socket.emit (events.js:315:20)
at Socket.EventEmitter.emit (domain.js:467:12)
at addChunk (internal/streams/readable.js:309:12)
at readableAddChunk (internal/streams/readable.js:284:9)
at Socket.Readable.push (internal/streams/readable.js:223:10)
at TCP.onStreamRead (internal/stream_base_commons.js:188:23) {
length: 166,
severity: 'ERROR',
code: '42P01',
detail: undefined,
hint: undefined,
position: '13',
internalPosition: undefined,
internalQuery: undefined,
where: undefined,
schema: undefined,
table: undefined,
column: undefined,
dataType: undefined,
constraint: undefined,
file: 'd:\\pginstaller_13.auto\\postgres.windows-x64\\src\\backend\\parser\\parse_relation.c',
line: '1376',
routine: 'parserOpenTable'
}
Index.ts:
import { MikroORM } from "@mikro-orm/core";
import { __prod__ } from "./constants";
import { Post } from "./entities/Post";
import mikroConfig from "./mikro-orm.config";
const main = async () => {
const orm = await MikroORM.init(mikroConfig);
await orm.getMigrator().up;
const post = orm.em.create(Post, { title: "my first post" });
await orm.em.persistAndFlush(post);
};
main().catch((err) => {
console.error(err);
});
Post.ts:
import { Entity, PrimaryKey, Property } from "@mikro-orm/core";
@Entity()
export class Post {
@PrimaryKey()
_id!: number;
@Property({ type: "date" })
createdAt = new Date();
@Property({ type: "date", onUpdate: () => new Date() })
updatedAt = new Date();
@Property({ type: "text" })
title!: string;
}
mikro-orm.config.ts:
import { __prod__ } from "./constants";
import { Post } from "./entities/Post";
import { MikroORM } from "@mikro-orm/core";
import path from "path";
export default {
migrations: {
path: path.join(__dirname, "./migrations"),
pattern: /^[\w-]+\d+\.[tj]s$/,
},
entities: [Post],
dbName: "postgres",
debug: !__prod__,
type: "postgresql",
password: "hellothere",
} as Parameters<typeof MikroORM.init>[0];
そして、 npx mikro-orm migration:create で作成した移行:
import { Migration } from '@mikro-orm/migrations';
export class Migration20210405205411 extends Migration {
async up(): Promise<void> {
this.addSql('create table "post" ("_id" serial primary key, "created_at" timestamptz(0) not null, "updated_at" timestamptz(0) not null, "title" text not null);');
}
}
その後、それを js にコンパイルしますが、問題は私のコードまたは idk のどこかにあると思います。
ところで、問題があれば、Ben Awad の 14 時間のフルスタック チュートリアルを実行します。