vid-webpack-master/src/app/shared/components/formControls/component/multiselect/multiselect.formControl.service.ts

   1 import {Injectable} from "@angular/core";
   2 import {MultiselectFormControl} from "../../../../models/formControlModels/multiselectFormControl.model";
   3 import {MultiSelectItem} from "./multiselect.model";
   4 import * as _ from "lodash";
   5
   6
   7 @Injectable()
   8 export class MultiselectFormControlService {
   9
  10   convertOriginalItems = (data : MultiselectFormControl) : Promise<MultiSelectItem[]> => {
  11     return new Promise<MultiSelectItem[]>((resolve) =>{
  12       let result: MultiSelectItem[] = [];
  13       if(data.options$) {
  14         let index: number = 1;
  15         data.options$.map((originalItems: any) => {
  16           result.push(new MultiSelectItem(index, originalItems[data.ngValue], originalItems[data.selectedFieldName]));
  17           index++;
  18         });
  19       }
  20       resolve(result);
  21     })
  22   };
  23
  24
  25   convertOptionsToHashMap = (config : MultiselectFormControl) => {
  26     let index = 1;
  27     return _.reduce(config.options$ , (obj, param: any ) => {
  28       param.index = index;
  29       index++;
  30       obj[param[config.ngValue]] = param;
  31       return obj;
  32     }, {});
  33   };
  34
  35   convertSelectedItems(data : MultiselectFormControl) : Promise<MultiSelectItem[]>{
  36     return new Promise<MultiSelectItem[]>((resolve) =>{
  37       let result: MultiSelectItem[] = [];
  38       const hashMap = this.convertOptionsToHashMap(data);
  39
  40       if(data.options$ && data.value) {
  41         const convertArray = data.convertOriginalDataToArray ? data.convertOriginalDataToArray(data.value) : data.value;
  42         convertArray.map((itemId) => {
  43           const uniqueIdentifier = itemId.trim();
  44           result.push(new MultiSelectItem(hashMap[uniqueIdentifier].index, hashMap[uniqueIdentifier][data.ngValue], hashMap[uniqueIdentifier][data.selectedFieldName]));
  45         });
  46       }
  47       resolve(result);
  48     });
  49   }
  50 }