Open-ILS/src/eg2/src/app/share/grid/grid-flat-data.service.ts

   1 import {Injectable, EventEmitter, TemplateRef} from '@angular/core';
   2 import {Observable, empty, throwError} from 'rxjs';
   3 import {tap} from 'rxjs/operators';
   4 import {StoreService} from '@eg/core/store.service';
   5 import {LocaleService} from '@eg/core/locale.service';
   6 import {AuthService} from '@eg/core/auth.service';
   7 import {NetService} from '@eg/core/net.service';
   8 import {GridContext, GridColumnSort} from './grid';
   9 import {Pager} from '@eg/share/util/pager';
  10
  11 interface FlatQueryFields {
  12     [name: string]: string;
  13 }
  14
  15
  16 @Injectable()
  17 export class GridFlatDataService {
  18
  19     constructor(
  20         private net: NetService,
  21         private auth: AuthService
  22     ) {}
  23
  24
  25     getRows(gridContext: GridContext,
  26         query: any, pager: Pager, sort: GridColumnSort[]): Observable<any> {
  27
  28         if (!gridContext.idlClass) {
  29             return throwError('GridFlatDataService requires an idlClass');
  30         }
  31
  32         const fields = this.compileFields(gridContext);
  33         const flatSort = sort.map(s => {
  34             const obj: any = {};
  35             obj[s.name] = s.dir;
  36             return obj;
  37         });
  38
  39         return this.net.request(
  40             'open-ils.fielder',
  41             'open-ils.fielder.flattened_search',
  42             this.auth.token(), gridContext.idlClass,
  43             fields, query, {
  44                 sort: flatSort,
  45                 limit: pager.limit,
  46                 offset: pager.offset
  47             }
  48         );
  49     }
  50
  51     compileFields(gridContext: GridContext): FlatQueryFields {
  52         const fields: FlatQueryFields = {};
  53
  54         gridContext.columnSet.requiredColumns().forEach(col => {
  55             // Verify the column describes a proper IDL field
  56             const path = col.path || col.name;
  57             const info = gridContext.columnSet.idlInfoFromDotpath(path);
  58             if (info) { fields[col.name] = path; }
  59         });
  60
  61         return fields;
  62     }
  63 }
  64