41 lines
1.0 KiB
TypeScript
41 lines
1.0 KiB
TypeScript
|
import { NotFoundException } from '@nestjs/common'
|
||
|
|
import { ObjectLiteral, Repository } from 'typeorm'
|
||
|
|
|
||
|
|
import { PagerDto } from '~/common/dto/pager.dto'
|
||
|
|
|
||
|
|
import { paginate } from '../paginate'
|
||
|
|
import { Pagination } from '../paginate/pagination'
|
||
|
|
|
||
|
|
export class BaseService<E extends ObjectLiteral, R extends Repository<E> = Repository<E>> {
|
||
|
|
constructor(private repository: R) {
|
||
|
|
}
|
||
|
|
|
||
|
|
async list({
|
||
|
|
page,
|
||
|
|
pageSize,
|
||
|
|
}: PagerDto): Promise<Pagination<E>> {
|
||
|
|
return paginate(this.repository, { page, pageSize })
|
||
|
|
}
|
||
|
|
|
||
|
|
async findOne(id: number): Promise<E> {
|
||
|
|
const item = await this.repository.createQueryBuilder().where({ id }).getOne()
|
||
|
|
if (!item)
|
||
|
|
throw new NotFoundException('未找到该记录')
|
||
|
|
|
||
|
|
return item
|
||
|
|
}
|
||
|
|
|
||
|
|
async create(dto: any): Promise<E> {
|
||
|
|
return await this.repository.save(dto)
|
||
|
|
}
|
||
|
|
|
||
|
|
async update(id: number, dto: any): Promise<void> {
|
||
|
|
await this.repository.update(id, dto)
|
||
|
|
}
|
||
|
|
|
||
|
|
async delete(id: number): Promise<void> {
|
||
|
|
const item = await this.findOne(id)
|
||
|
|
await this.repository.remove(item)
|
||
|
|
}
|
||
|
|
}
|