Handcrafts SQL queries a little more to reduce the query count and/or the amount of returned data (#6489)

This commit is contained in:
Trenton H
2024-04-30 07:37:09 -07:00
committed by GitHub
parent 63e1f9f5d3
commit 7be7185418
10 changed files with 188 additions and 135 deletions

View File

@@ -246,7 +246,8 @@ class CorrespondentViewSet(ModelViewSet, PermissionsAwareDocumentCountMixin):
model = Correspondent
queryset = (
Correspondent.objects.annotate(
Correspondent.objects.prefetch_related("documents")
.annotate(
last_correspondence=Max("documents__created"),
)
.select_related("owner")
@@ -394,7 +395,7 @@ class DocumentViewSet(
)
def file_response(self, pk, request, disposition):
doc = Document.objects.get(id=pk)
doc = Document.objects.select_related("owner").get(id=pk)
if request.user is not None and not has_perms_owner_aware(
request.user,
"view_document",
@@ -438,7 +439,7 @@ class DocumentViewSet(
)
def metadata(self, request, pk=None):
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.select_related("owner").get(pk=pk)
if request.user is not None and not has_perms_owner_aware(
request.user,
"view_document",
@@ -498,7 +499,7 @@ class DocumentViewSet(
),
)
def suggestions(self, request, pk=None):
doc = get_object_or_404(Document, pk=pk)
doc = get_object_or_404(Document.objects.select_related("owner"), pk=pk)
if request.user is not None and not has_perms_owner_aware(
request.user,
"view_document",
@@ -557,7 +558,7 @@ class DocumentViewSet(
@method_decorator(last_modified(thumbnail_last_modified))
def thumb(self, request, pk=None):
try:
doc = Document.objects.get(id=pk)
doc = Document.objects.select_related("owner").get(id=pk)
if request.user is not None and not has_perms_owner_aware(
request.user,
"view_document",
@@ -583,7 +584,7 @@ class DocumentViewSet(
def getNotes(self, doc):
return [
{
"id": c.id,
"id": c.pk,
"note": c.note,
"created": c.created,
"user": {
@@ -593,14 +594,31 @@ class DocumentViewSet(
"last_name": c.user.last_name,
},
}
for c in Note.objects.filter(document=doc).order_by("-created")
for c in Note.objects.select_related("user")
.only(
"pk",
"note",
"created",
"user__id",
"user__username",
"user__first_name",
"user__last_name",
)
.filter(document=doc)
.order_by("-created")
]
@action(methods=["get", "post", "delete"], detail=True)
def notes(self, request, pk=None):
currentUser = request.user
try:
doc = Document.objects.get(pk=pk)
doc = (
Document.objects.select_related("owner")
.prefetch_related("notes")
.only("pk", "owner__id")
.get(pk=pk)
)
if currentUser is not None and not has_perms_owner_aware(
currentUser,
"view_document",
@@ -612,7 +630,8 @@ class DocumentViewSet(
if request.method == "GET":
try:
return Response(self.getNotes(doc))
notes = self.getNotes(doc)
return Response(notes)
except Exception as e:
logger.warning(f"An error occurred retrieving notes: {e!s}")
return Response(
@@ -634,7 +653,6 @@ class DocumentViewSet(
note=request.data["note"],
user=currentUser,
)
c.save()
# If audit log is enabled make an entry in the log
# about this note change
if settings.AUDIT_LOG_ENABLED:
@@ -653,9 +671,11 @@ class DocumentViewSet(
from documents import index
index.add_or_update_document(self.get_object())
index.add_or_update_document(doc)
return Response(self.getNotes(doc))
notes = self.getNotes(doc)
return Response(notes)
except Exception as e:
logger.warning(f"An error occurred saving note: {e!s}")
return Response(
@@ -704,7 +724,7 @@ class DocumentViewSet(
def share_links(self, request, pk=None):
currentUser = request.user
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.select_related("owner").get(pk=pk)
if currentUser is not None and not has_perms_owner_aware(
currentUser,
"change_document",
@@ -720,12 +740,13 @@ class DocumentViewSet(
now = timezone.now()
links = [
{
"id": c.id,
"id": c.pk,
"created": c.created,
"expiration": c.expiration,
"slug": c.slug,
}
for c in ShareLink.objects.filter(document=doc)
.only("pk", "created", "expiration", "slug")
.exclude(expiration__lt=now)
.order_by("-created")
]
@@ -949,7 +970,9 @@ class BulkEditView(PassUserMixin):
documents = serializer.validated_data.get("documents")
if not user.is_superuser:
document_objs = Document.objects.filter(pk__in=documents)
document_objs = Document.objects.select_related("owner").filter(
pk__in=documents,
)
has_perms = (
all((doc.owner == user or doc.owner is None) for doc in document_objs)
if method
@@ -1139,16 +1162,21 @@ class StatisticsView(APIView):
permission_classes = (IsAuthenticated,)
def get(self, request, format=None):
user = request.user if request.user is not None else None
documents = (
Document.objects.all()
if user is None
else get_objects_for_user_owner_aware(
user,
"documents.view_document",
Document,
(
Document.objects.all()
if user is None
else get_objects_for_user_owner_aware(
user,
"documents.view_document",
Document,
)
)
.only("mime_type", "content")
.prefetch_related("tags")
)
tags = (
Tag.objects.all()
@@ -1158,35 +1186,29 @@ class StatisticsView(APIView):
correspondent_count = (
Correspondent.objects.count()
if user is None
else len(
get_objects_for_user_owner_aware(
user,
"documents.view_correspondent",
Correspondent,
),
)
else get_objects_for_user_owner_aware(
user,
"documents.view_correspondent",
Correspondent,
).count()
)
document_type_count = (
DocumentType.objects.count()
if user is None
else len(
get_objects_for_user_owner_aware(
user,
"documents.view_documenttype",
DocumentType,
),
)
else get_objects_for_user_owner_aware(
user,
"documents.view_documenttype",
DocumentType,
).count()
)
storage_path_count = (
StoragePath.objects.count()
if user is None
else len(
get_objects_for_user_owner_aware(
user,
"documents.view_storagepath",
StoragePath,
),
)
else get_objects_for_user_owner_aware(
user,
"documents.view_storagepath",
StoragePath,
).count()
)
documents_total = documents.count()
@@ -1260,9 +1282,8 @@ class BulkDownloadView(GenericAPIView):
with zipfile.ZipFile(temp.name, "w", compression) as zipf:
strategy = strategy_class(zipf, follow_filename_format)
for id in ids:
doc = Document.objects.get(id=id)
strategy.add_document(doc)
for document in Document.objects.filter(pk__in=ids):
strategy.add_document(document)
with open(temp.name, "rb") as f:
response = HttpResponse(f, content_type="application/zip")
@@ -1323,7 +1344,7 @@ class UiSettingsView(GenericAPIView):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
user = User.objects.get(pk=request.user.id)
user = User.objects.select_related("ui_settings").get(pk=request.user.id)
ui_settings = {}
if hasattr(user, "ui_settings"):
ui_settings = user.ui_settings.settings
@@ -1545,7 +1566,7 @@ class BulkEditObjectsView(PassUserMixin):
object_class = serializer.get_object_class(object_type)
operation = serializer.validated_data.get("operation")
objs = object_class.objects.filter(pk__in=object_ids)
objs = object_class.objects.select_related("owner").filter(pk__in=object_ids)
if not user.is_superuser:
model_name = object_class._meta.verbose_name