Fix: get highest ASN regardless of user (#4326)

src-ui/src/app/components/common/input/number/number.component.spec.ts

@@ -30,39 +30,9 @@ describe('NumberComponent', () => {
     input = component.inputField.nativeElement
   })
 
-  // TODO: why doesnt this work?
-  // it('should support use of input field', () => {
-  //   expect(component.value).toBeUndefined()
-  //   input.stepUp()
-  //   console.log(input.value);
-
-  //   input.dispatchEvent(new Event('change'))
-  //   fixture.detectChanges()
-  //   expect(component.value).toEqual('3')
-  // })
-
   it('should support +1 ASN', () => {
-    const listAllSpy = jest.spyOn(documentService, 'listFiltered')
-    listAllSpy
-      .mockReturnValueOnce(
-        of({
-          count: 1,
-          all: [1],
-          results: [
-            {
-              id: 1,
-              archive_serial_number: 1000,
-            },
-          ],
-        })
-      )
-      .mockReturnValueOnce(
-        of({
-          count: 0,
-          all: [],
-          results: [],
-        })
-      )
+    const nextAsnSpy = jest.spyOn(documentService, 'getNextAsn')
+    nextAsnSpy.mockReturnValueOnce(of(1001)).mockReturnValueOnce(of(1))
     expect(component.value).toBeUndefined()
     component.nextAsn()
     expect(component.value).toEqual(1001)

src-ui/src/app/components/common/input/number/number.component.ts

@@ -1,6 +1,5 @@
 import { Component, forwardRef, Input } from '@angular/core'
 import { NG_VALUE_ACCESSOR } from '@angular/forms'
-import { FILTER_ASN_ISNULL } from 'src/app/data/filter-rule-type'
 import { DocumentService } from 'src/app/services/rest/document.service'
 import { AbstractInputComponent } from '../abstract-input'
 
@@ -28,17 +27,9 @@ export class NumberComponent extends AbstractInputComponent<number> {
     if (this.value) {
       return
     }
-    this.documentService
-      .listFiltered(1, 1, 'archive_serial_number', true, [
-        { rule_type: FILTER_ASN_ISNULL, value: 'false' },
-      ])
-      .subscribe((results) => {
-        if (results.count > 0) {
-          this.value = results.results[0].archive_serial_number + 1
-        } else {
-          this.value = 1
-        }
-        this.onChange(this.value)
-      })
+    this.documentService.getNextAsn().subscribe((nextAsn) => {
+      this.value = nextAsn
+      this.onChange(this.value)
+    })
   }
 }

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

@@ -229,6 +229,14 @@ describe(`DocumentService`, () => {
       `${environment.apiBaseUrl}${endpoint}/${documents[0].id}/preview/#search="${searchQuery}"`
     )
   })
+
+  it('should support get next asn', () => {
+    subscription = service.getNextAsn().subscribe((asn) => asn)
+    const req = httpTestingController.expectOne(
+      `${environment.apiBaseUrl}${endpoint}/next_asn/`
+    )
+    expect(req.request.method).toEqual('GET')
+  })
 })
 
 beforeEach(() => {

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

@@ -143,6 +143,10 @@ export class DocumentService extends AbstractPaperlessService<PaperlessDocument>
     return url
   }
 
+  getNextAsn(): Observable<number> {
+    return this.http.get<number>(this.getResourceUrl(null, 'next_asn'))
+  }
+
   update(o: PaperlessDocument): Observable<PaperlessDocument> {
     // we want to only set created_date
     o.created = undefined

src/documents/tests/test_api.py

@@ -2689,6 +2689,50 @@ class TestDocumentApi(DirectoriesMixin, DocumentConsumeDelayMixin, APITestCase):
         )
         self.assertEqual(resp.status_code, status.HTTP_200_OK)
 
+    def test_next_asn(self):
+        """
+        GIVEN:
+            - Existing documents with ASNs, highest owned by user2
+        WHEN:
+            - API request is made by user1 to get next ASN
+        THEN:
+            - ASN +1 from user2's doc is returned for user1
+        """
+        user1 = User.objects.create_user(username="test1")
+        user1.user_permissions.add(*Permission.objects.all())
+        user1.save()
+
+        user2 = User.objects.create_user(username="test2")
+        user2.save()
+
+        doc1 = Document.objects.create(
+            title="test",
+            mime_type="application/pdf",
+            content="this is a document 1",
+            checksum="1",
+            archive_serial_number=998,
+        )
+        doc1.owner = user1
+        doc1.save()
+
+        doc2 = Document.objects.create(
+            title="test2",
+            mime_type="application/pdf",
+            content="this is a document 2 with higher ASN",
+            checksum="2",
+            archive_serial_number=999,
+        )
+        doc2.owner = user2
+        doc2.save()
+
+        self.client.force_authenticate(user1)
+
+        resp = self.client.get(
+            "/api/documents/next_asn/",
+        )
+        self.assertEqual(resp.status_code, status.HTTP_200_OK)
+        self.assertEqual(resp.content, b"1000")
+
 
 class TestDocumentApiV2(DirectoriesMixin, APITestCase):
     def setUp(self):

src/documents/views.py

@@ -661,6 +661,19 @@ class UnifiedSearchViewSet(DocumentViewSet):
         else:
             return super().list(request)
 
+    @action(detail=False, methods=["GET"], name="Get Next ASN")
+    def next_asn(self, request, *args, **kwargs):
+        return Response(
+            (
+                Document.objects.filter(archive_serial_number__gte=0)
+                .order_by("archive_serial_number")
+                .last()
+                .archive_serial_number
+                or 0
+            )
+            + 1,
+        )
+
 
 class LogViewSet(ViewSet):
     permission_classes = (IsAuthenticated, PaperlessAdminPermissions)