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

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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
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10
src/documents/conditionals.py
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@@ -73,7 +73,7 @@ def metadata_etag(request, pk: int) -> Optional[str]:
ETag
"""
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.only("checksum").get(pk=pk)
return doc.checksum
except Document.DoesNotExist: # pragma: no cover
return None
@@ -87,7 +87,7 @@ def metadata_last_modified(request, pk: int) -> Optional[datetime]:
error on the side of more cautious
"""
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.only("modified").get(pk=pk)
return doc.modified
except Document.DoesNotExist: # pragma: no cover
return None
@@ -99,7 +99,7 @@ def preview_etag(request, pk: int) -> Optional[str]:
ETag for the document preview, using the original or archive checksum, depending on the request
"""
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.only("checksum", "archive_checksum").get(pk=pk)
use_original = (
"original" in request.query_params
and request.query_params["original"] == "true"
@@ -116,7 +116,7 @@ def preview_last_modified(request, pk: int) -> Optional[datetime]:
speaking correct, but close enough and quick
"""
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.only("modified").get(pk=pk)
return doc.modified
except Document.DoesNotExist: # pragma: no cover
return None
@@ -129,7 +129,7 @@ def thumbnail_last_modified(request, pk: int) -> Optional[datetime]:
Cache should be (slightly?) faster than filesystem
"""
try:
doc = Document.objects.get(pk=pk)
doc = Document.objects.only("storage_type").get(pk=pk)
if not doc.thumbnail_path.exists():
return None
doc_key = get_thumbnail_modified_key(pk)