91 lines
2.2 KiB
TypeScript
91 lines
2.2 KiB
TypeScript
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import { Provide } from '@midwayjs/core';
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import { InjectEntityModel } from '@midwayjs/typeorm';
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import { Repository } from 'typeorm';
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import { Area } from '../entity/area.entity';
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import { CreateAreaDTO, QueryAreaDTO, UpdateAreaDTO } from '../dto/area.dto';
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@Provide()
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export class AreaService {
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@InjectEntityModel(Area)
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areaModel: Repository<Area>;
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/**
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* 创建区域
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* @param params 创建参数
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*/
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async createArea(params: CreateAreaDTO) {
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// 检查区域名称是否已存在
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const existing = await this.areaModel.findOne({ where: { name: params.name } });
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if (existing) {
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throw new Error('区域名称已存在');
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}
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const area = new Area();
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area.name = params.name;
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return await this.areaModel.save(area);
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}
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/**
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* 更新区域
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* @param id 区域ID
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* @param params 更新参数
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*/
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async updateArea(id: number, params: UpdateAreaDTO) {
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const area = await this.areaModel.findOneBy({ id });
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if (!area) {
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throw new Error('区域不存在');
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}
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if (params.name) {
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// 检查新的区域名称是否已存在
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const existing = await this.areaModel.findOne({ where: { name: params.name } });
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if (existing && existing.id !== id) {
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throw new Error('区域名称已存在');
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}
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area.name = params.name;
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}
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return await this.areaModel.save(area);
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}
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/**
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* 删除区域
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* @param id 区域ID
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*/
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async deleteArea(id: number) {
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const result = await this.areaModel.delete(id);
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return result.affected > 0;
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}
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/**
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* 获取区域列表（分页）
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* @param query 查询参数
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*/
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async getAreaList(query: QueryAreaDTO) {
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const { currentPage, pageSize, name } = query;
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const [list, total] = await this.areaModel.findAndCount({
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where: name ? { name } : {},
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skip: (currentPage - 1) * pageSize,
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take: pageSize,
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order: {
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id: 'DESC',
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},
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});
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return { list, total };
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}
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/**
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* 获取所有区域
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*/
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async getAllAreas() {
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return await this.areaModel.find();
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}
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/**
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* 根据ID获取区域详情
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* @param id 区域ID
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*/
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async getAreaById(id: number) {
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return await this.areaModel.findOneBy({ id });
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}
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}
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