technique_service/src/service/users/expert.service.ts

import { Provide } from '@midwayjs/decorator';
import { InjectEntityModel } from '@midwayjs/typegoose';
import { ReturnModelType } from '@typegoose/typegoose';
import { BaseService } from 'free-midway-component';
import { Expert } from '../../entity/users/expert.entity';
import { Collection } from '../../entity/platform/collection.entity';
import { get } from 'lodash';
type modelType = ReturnModelType<typeof Expert>;
@Provide()
export class ExpertService extends BaseService<modelType> {
  @InjectEntityModel(Expert)
  model: modelType;
  @InjectEntityModel(Collection)
  cModel: ReturnModelType<typeof Collection>;

  // 专家详情
  async detail(id) {
    const user = this.ctx.user;
    const data = { is_collection: false };
    const arr = await this.model.findById(id).lean();
    if (arr && get(arr, '_id')) {
      // 查询是否收藏该专家
      const collection = await this.cModel.findOne({ user: user._id, source: arr._id }).lean();
      if (collection) data.is_collection = true;
    }
    return { ...arr, ...data };
  }
}