graphite-middleware-nodejs/src/service/variety.service.js

const Variety = require("../model/variety.model");
class VarietyService {
  async getAllVariety() {
    const res = await Variety.findAll();
    const arr = res.map((item) => item.dataValues);
    return arr;
  }

  async getVarietyById(id) {
    const whereOpt = {};
    id && Object.assign(whereOpt, { id });
    const res = await Variety.findOne({
      where: whereOpt,
    });
    return res ? res.dataValues : null;
  }

  async getVarietyByName(variety_name) {
    const whereOpt = {};
    variety_name && Object.assign(whereOpt, { variety_name });
    const res = await Variety.findOne({
      where: whereOpt,
    });
    return res ? res.dataValues : null;
  }

  async addVariety(variety_name) {
    const res = await Variety.create({
      variety_name,
    });
    return res?.dataValues;
  }

  async deleteVarietyById(id) {
    const res = await Variety.destroy({
      where: {
        id,
      },
    });
    return res;
  }
}

module.exports = new VarietyService();