Refactor query param handling to service

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

@@ -12,6 +12,7 @@ import { DocumentTypeService } from './document-type.service'
 import { TagService } from './tag.service'
 import { FILTER_RULE_TYPES } from 'src/app/data/filter-rule-type'
 import { PaperlessDocumentSuggestions } from 'src/app/data/paperless-document-suggestions'
+import { QueryParamsService } from '../query-params.service'
 
 export const DOCUMENT_SORT_FIELDS = [
   { field: 'archive_serial_number', name: $localize`ASN` },
@@ -52,32 +53,12 @@ export class DocumentService extends AbstractPaperlessService<PaperlessDocument>
     http: HttpClient,
     private correspondentService: CorrespondentService,
     private documentTypeService: DocumentTypeService,
-    private tagService: TagService
+    private tagService: TagService,
+    private queryParamsService: QueryParamsService
   ) {
     super(http, 'documents')
   }
 
-  public filterRulesToQueryParams(filterRules: FilterRule[]): Object {
-    if (filterRules) {
-      let params = {}
-      for (let rule of filterRules) {
-        let ruleType = FILTER_RULE_TYPES.find((t) => t.id == rule.rule_type)
-        if (ruleType.multi) {
-          params[ruleType.filtervar] = params[ruleType.filtervar]
-            ? params[ruleType.filtervar] + ',' + rule.value
-            : rule.value
-        } else if (ruleType.isnull_filtervar && rule.value == null) {
-          params[ruleType.isnull_filtervar] = true
-        } else {
-          params[ruleType.filtervar] = rule.value
-        }
-      }
-      return params
-    } else {
-      return null
-    }
-  }
-
   addObservablesToDocument(doc: PaperlessDocument) {
     if (doc.correspondent) {
       doc.correspondent$ = this.correspondentService.getCached(
@@ -101,12 +82,13 @@ export class DocumentService extends AbstractPaperlessService<PaperlessDocument>
     filterRules?: FilterRule[],
     extraParams = {}
   ): Observable<Results<PaperlessDocument>> {
+    this.queryParamsService.filterRules = filterRules
     return this.list(
       page,
       pageSize,
       sortField,
       sortReverse,
-      Object.assign(extraParams, this.filterRulesToQueryParams(filterRules))
+      Object.assign(extraParams, this.queryParamsService.params)
     ).pipe(
       map((results) => {
         results.results.forEach((doc) => this.addObservablesToDocument(doc))