refactored document rest api

src-ui/src/app/services/rest/document.service.ts

@@ -2,8 +2,24 @@ import { Injectable } from '@angular/core';
 import { PaperlessDocument } from 'src/app/data/paperless-document';
 import { AbstractPaperlessService } from './abstract-paperless-service';
 import { HttpClient } from '@angular/common/http';
-import { Observable } from 'rxjs';
 import { AuthService } from '../auth.service';
+import { Observable } from 'rxjs';
+import { Results } from 'src/app/data/results';
+import { FilterRule } from 'src/app/data/filter-rule';
+
+
+export const DOCUMENT_SORT_FIELDS = [
+  { field: "correspondent__name", name: "Correspondent" },
+  { field: 'title', name: 'Title' },
+  { field: 'archive_serial_number', name: 'ASN' },
+  { field: 'created', name: 'Created' },
+  { field: 'added', name: 'Added' },
+  { field: 'modified', name: 'Modified' }
+]
+
+export const SORT_DIRECTION_ASCENDING = "asc"
+export const SORT_DIRECTION_DESCENDING = "des"
+
 
 @Injectable({
   providedIn: 'root'
@@ -14,6 +30,30 @@ export class DocumentService extends AbstractPaperlessService<PaperlessDocument>
     super(http, 'documents')
   }
 
+  private filterRulesToQueryParams(filterRules: FilterRule[]) {
+    if (filterRules) {
+      let params = {}
+      for (let rule of filterRules) {
+        params[rule.type.filtervar] = rule.value
+      }
+      return params
+    } else {
+      return null
+    }
+  }
+
+  private getOrderingQueryParam(sortField: string, sortDirection: string) {
+    if (DOCUMENT_SORT_FIELDS.find(f => f.field == sortField)) {
+      return (sortDirection == SORT_DIRECTION_DESCENDING ? '-' : '') + sortField
+    } else {
+      return null
+    }
+  }
+
+  list(page?: number, pageSize?: number, sortField?: string, sortDirection?: string, filterRules?: FilterRule[]): Observable<Results<PaperlessDocument>> {
+    return super.list(page, pageSize, this.getOrderingQueryParam(sortField, sortDirection), this.filterRulesToQueryParams(filterRules))
+  }
+
   getPreviewUrl(id: number): string {
     return this.getResourceUrl(id, 'preview') + `?auth_token=${this.auth.getToken()}`
   }