sails-hook-blacksails/api/services/helpers/ValidatorHelper.js

A Sails Micro-app architecture framework

import _ from 'lodash';
// import validator from 'validator';

module.exports = {

  /**
   * 傳入參數以檢查是否存在該筆資料
   *
   * @export
   * @param {*} payload:[[Model, columnName, value]]
   */
  async checkNullData(payload) {
    sails.log.info('ValidatorHelper checkNullData payload=>\n', payload);
    try {
      if (!payload) {
        throw Error(MESSAGE.BAD_REQUEST.NO_REQUIRED_PARAMETER('payload'));
      }
      if (!_.isArray(payload)) {
        throw Error(MESSAGE.BAD_REQUEST.CHECK_INPUT_PARAMETER_TYPE('payload', Array));
      }
      let itemShouldExists;
      for (const item of payload) {
        if (item.length !== 3) {
          // eslint-disable-next-line
          continue;
        }
        // console.log('item[0]=>', item[0].name);
        if (!item[0]) {
          throw Error(MESSAGE.BAD_REQUEST.NO_REQUIRED_PARAMETER('1st parameter: model or model name'));
        }
        const modelName = item[0].name || item[0];
        const model = sails.models[modelName.toLowerCase()];
        // console.log('model=>', model);
        if (!model) {
          throw Error(MESSAGE.BAD_REQUEST.MODEL_NOT_EXISTS(model));
        }
        const key = item[1];
        const value = item[2];
        const where = {
          [key]: value,
        };
        // eslint-disable-next-line
        itemShouldExists = await model.findOne({
          where,
          attributes: ['id'],
        });
        if (!itemShouldExists) {
          return `${model.name}.${key}=${value}`;
        }
      }
      return false;
    } catch (e) {
      throw e;
    }
  },


  /**
   * 參數可直接傳入或以 [] 形式，表示其中一個不為 null 即可
   * @export
   * @param {*} payload
   * @deprecated 改用 checkNull()
   * @returns result or throw an Error
   */
  noNull(payload) {
    sails.log.info('ValidatorHelper noNull payload=>\n', payload);
    try {
      if (!payload) {
        throw Error(MESSAGE.BAD_REQUEST.NO_REQUIRED_PARAMETER('payload'));
      }
      if (!_.isArray(payload)) {
        throw Error(MESSAGE.BAD_REQUEST.CHECK_INPUT_PARAMETER_TYPE('payload', Array));
      }
      const nullParams = payload.some((p) => {
        if (_.isArray(p)) {
          // console.log('isArray=>', p);
          return !p.some(e => !_.isNil(e));
        }
        return _.isNil(p);
      });
      sails.log.info('Parameters include null=>', nullParams);
      // if (nullParams) {
      //   throw Error(MESSAGE.BAD_REQUEST.NO_REQUIRED_PARAMETER);
      // }
      return !nullParams;
    } catch (e) {
      throw e;
    }
  },

  /**
   * 參數需傳入{}形式，表示其中一個不為 null 即可
   * @export
   * @param {*} payload
   * @returns result
   */
  checkNull(payload) {
    sails.log.info('ValidatorHelper checkNull payload=>\n', payload);
    try {
      if (!payload) {
        throw Error(MESSAGE.BAD_REQUEST.NO_REQUIRED_PARAMETER('payload'));
      }
      // console.log('Object.keys(payload)=>', Object.keys(payload));
      const nullItemIndex = Object
        .keys(payload)
        .findIndex((e) => {
          // console.log('payload[e]=>', payload[e]);
          const target = payload[e];
          const isNull = _.isNil(target);
          if (!isNull && _.isArray(target)) {
            return !target.some(i => !_.isNil(i));
          }
          // console.log('lodash=>', isNull);
          return isNull;
        });
      // console.log('!nullItemIndex=>', nullItemIndex);
      return (nullItemIndex === -1)
        ? null
        : Object.keys(payload)[nullItemIndex];
    } catch (err) {
      throw err;
    }
  },
};