@ngha/transform-object/esm2015/lib/transform-object.service.js

New object is transformed by object pattern

import { Injectable } from '@angular/core';
export class TransformObjectService {
    constructor() {
        this.get = (object, path, defaultValue) => {
            const travel = regexp => String.prototype.split
                .call(path, regexp)
                .filter(Boolean)
                .reduce((res, key) => (res !== null && res !== undefined ? res[key] : res), object);
            const result = travel(/[,[\]]+?/) || travel(/[,[\].]+?/);
            return result === undefined || result === object ? defaultValue : result;
        };
        this.mapValue = (object, iteratee) => {
            object = Object(object);
            const result = {};
            Object.keys(object).forEach((key) => {
                result[key] = iteratee(object[key], key, object);
            });
            return result;
        };
        // private has = (obj, key) => {
        //   const keyParts = key.split('.');
        //
        //   return !!obj && (
        //     keyParts.length > 1
        //       ? this.has(obj[key.split('.')[0]], keyParts.slice(1).join('.'))
        //       : hasOwnProperty.call(obj, key)
        //   );
        // };
    }
    /**
     * transformObject map object to new object base on object pattern
     *
     * @param value
     * @param objPattern
     * @param objDefaultValue
     * @example
     *
     dataProvider =
     [
     {
        'id': '005564a8-2b3d-4f87-9e19-290526ac5e26',
        'username': 'a@mail.com',
        'emailAddress': 'a@mail.com',
        'fullName': 'John',
        'status': 'ACTIVE',
        'roleId': '09323760-ba53-42e2-a961-840c75726f93',
        'role': {
          'id': '09323760-ba53-42e2-a961-840c75726f93',
          'code': 'USER'
        },
        'createdDate': '2020-09-07T03:01:15.587Z'
      },
     {
        'id': '91458c99-271b-408d-b0bc-9e23384e5c5f',
        'username': 'b@mail.com',
        'emailAddress': 'b@mail.com',
        'fullName': 'test2',
        'status': 'PENDING',
        'roleId': 'f34ebf72-f55d-4ad4-b7ea-72f2711bf7f8',
        'role': {
          'id': 'f34ebf72-f55d-4ad4-b7ea-72f2711bf7f8',
          'code': 'PARTNER'
        },
        'createdDate': '2020-09-01T08:27:47.237Z'
      },
     {
        'id': '13d8b6a7-d7da-49b0-8a98-0bad8e6117cc',
        'username': 'c@mail.com',
        'emailAddress': 'c@mail.com',
        'fullName': 'test111',
        'status': 'PENDING',
        'roleId': '09323760-ba53-42e2-a961-840c75726f93',
        'role': {
          'id': '09323760-ba53-42e2-a961-840c75726f93',
          'code': 'USER'
        },
        'createdDate': '2020-09-01T08:27:04.553Z'
      }
     ];
     objectPattern = {
      index: 'id',
      name: 'fullName',
      title: 'role.code'
    }
  
     transformObject(dataProvider[0], objectPattern)
     =>
     {
       "index": "005564a8-2b3d-4f87-9e19-290526ac5e26",
       "name": "John",
       "title": "USER"
     }
  
     transformObject(dataProvider, objectPattern)
     =>
     [
     {
        "index": "005564a8-2b3d-4f87-9e19-290526ac5e26",
        "name": "John",
        "title": "USER"
      },
     {
        "index": "91458c99-271b-408d-b0bc-9e23384e5c5f",
        "name": "test2",
        "title": "PARTNER"
      },
     {
        "index": "13d8b6a7-d7da-49b0-8a98-0bad8e6117cc",
        "name": "test111",
        "title": "USER"
      }
     ]
     *
     */
    transformObject(value, objPattern, objDefaultValue) {
        return Array.isArray(value)
            ? value === null || value === void 0 ? void 0 : value.map(val => this.mapValue(objPattern, (v, k) => this.get(val, v, objDefaultValue && this.get(objDefaultValue, k, null))))
            : this.mapValue(objPattern, (v, k) => this.get(value, v, objDefaultValue && this.get(objDefaultValue, k, null)));
    }
}
TransformObjectService.decorators = [
    { type: Injectable }
];
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