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fix(document): order undated documents last on the DATE sort fast path

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resolveSort produced Sort.by(direction, "documentDate") with NATIVE null
handling, so Postgres surfaced undated (null meta_date) documents FIRST on
an ASC sort. Apply nullsLast() so undated rows order last for both ASC and
DESC, with a createdAt-asc tiebreaker for a stable total order when every
row is null-dated (the upcoming "Nur undatierte" filter).

Refs #668
This commit is contained in:
Marcel
2026-05-27 18:31:40 +02:00
parent 929acf6964
commit 5f2ef823e1
2 changed files with 45 additions and 2 deletions
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36
backend/src/test/java/org/raddatz/familienarchiv/document/DocumentServiceTest.java
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@@ -1450,6 +1450,42 @@ class DocumentServiceTest {
assertThat(result.items()).hasSize(1); // only the slice is enriched
}
@Test
void searchDocuments_dateSort_DESC_ordersUndatedLast() {
ArgumentCaptor<Pageable> captor = ArgumentCaptor.forClass(Pageable.class);
when(documentRepository.findAll(any(org.springframework.data.jpa.domain.Specification.class), any(Pageable.class)))
.thenReturn(new PageImpl<>(List.of()));
documentService.searchDocuments(null, null, null, null, null, null, null, null,
DocumentSort.DATE, "DESC", null,
org.springframework.data.domain.PageRequest.of(0, 5));
verify(documentRepository).findAll(any(org.springframework.data.jpa.domain.Specification.class), captor.capture());
Sort.Order dateOrder = captor.getValue().getSort().getOrderFor("documentDate");
assertThat(dateOrder).isNotNull();
assertThat(dateOrder.getDirection()).isEqualTo(Sort.Direction.DESC);
assertThat(dateOrder.getNullHandling()).isEqualTo(Sort.NullHandling.NULLS_LAST);
}
@Test
void searchDocuments_dateSort_ASC_ordersUndatedLast() {
// The ASC bug: Postgres puts NULLs FIRST on ascending sort without explicit
// NULLS LAST, surfacing undated documents at the top. This is the red.
ArgumentCaptor<Pageable> captor = ArgumentCaptor.forClass(Pageable.class);
when(documentRepository.findAll(any(org.springframework.data.jpa.domain.Specification.class), any(Pageable.class)))
.thenReturn(new PageImpl<>(List.of()));
documentService.searchDocuments(null, null, null, null, null, null, null, null,
DocumentSort.DATE, "ASC", null,
org.springframework.data.domain.PageRequest.of(0, 5));
verify(documentRepository).findAll(any(org.springframework.data.jpa.domain.Specification.class), captor.capture());
Sort.Order dateOrder = captor.getValue().getSort().getOrderFor("documentDate");
assertThat(dateOrder).isNotNull();
assertThat(dateOrder.getDirection()).isEqualTo(Sort.Direction.ASC);
assertThat(dateOrder.getNullHandling()).isEqualTo(Sort.NullHandling.NULLS_LAST);
}
@Test
void searchDocuments_UPDATED_AT_sort_resolves_to_updatedAt_field() {
ArgumentCaptor<Pageable> captor = ArgumentCaptor.forClass(Pageable.class);