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Using transactions where it needed

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This commit is contained in:
Sergey Elpashev
2024-02-13 23:10:43 +03:00
parent 9097e6cc4f
commit e003a87ba2
2 changed files with 54 additions and 51 deletions
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25
backend/src/modules/post/post.service.ts
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@@ -1,9 +1,9 @@
import { HttpException, HttpStatus, Injectable, Logger } from '@nestjs/common';
import { HttpException, HttpStatus, Inject, Injectable, Logger } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { Admin } from 'libs/database/admin.entity';
import { Post } from 'libs/database/post.entity';
import { EGetAll } from 'libs/enums/getAll.enum';
import { Repository } from 'typeorm';
import { DataSource, EntityManager, Repository } from 'typeorm';
import { ICreatePost, IEditPost } from './post.dto';
@Injectable()
@@ -12,18 +12,22 @@ export class PostService {
constructor(
@InjectRepository(Post) private postRepository: Repository<Post>,
@InjectRepository(Admin) private adminRepository: Repository<Admin>,
@Inject(DataSource) private dataSource: DataSource,
) {}
async newPost(data: ICreatePost) {
try {
this.logger.log(`[post.newPost] data: ${JSON.stringify(data)}`);
let result: Post = null;
const user = await this.adminRepository.findOne({ where: { user: { id: data.from_user_id } }, relations: { user: true } });
const result = await this.postRepository.save({
text: data.text,
media_group_id: data.media_group_id,
from_user: user,
timestamp: new Date(),
message_entities: data.message_entities,
await this.dataSource.transaction(async (manager: EntityManager) => {
result = await manager.save(Post, {
text: data.text,
media_group_id: data.media_group_id,
from_user: user,
timestamp: new Date(),
message_entities: data.message_entities,
});
});
this.logger.log(`Created new post: ${result.uuid}`);
return result;
@@ -113,7 +117,10 @@ export class PostService {
async getByMediaGroup(mediaGroupId: string) {
try {
this.logger.log(`[post.getByMediaGroup] data: ${mediaGroupId}`);
const post = await this.postRepository.findOne({ where: { media_group_id: mediaGroupId } });
let post: Post = null;
await this.dataSource.transaction(async (manager: EntityManager) => {
post = await manager.findOne(Post, { where: { media_group_id: mediaGroupId } });
});
if (!post) throw new Error("Can't find post");
return post;
} catch (error) {