flibusta-apps/book_library_server
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Fix joins and subqueries

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This commit is contained in:
Kurbanov Bulat
2022-01-22 21:49:08 +03:00
parent 1bdc2733a2
commit c43636731b
9 changed files with 69 additions and 29 deletions
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34
fastapi_book_server/app/views/author.py
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@@ -27,34 +27,49 @@ author_router = APIRouter(
)
PREFETCH_RELATED = ["source", "annotations"]
SELECT_RELATED_FIELDS = ["source"]
PREFETCH_RELATED_FIELDS = ["annotations"]
@author_router.get(
"/", response_model=CustomPage[Author], dependencies=[Depends(Params)]
)
async def get_authors():
return await paginate(AuthorDB.objects.prefetch_related(PREFETCH_RELATED))
return await paginate(
AuthorDB.objects.select_related(SELECT_RELATED_FIELDS).prefetch_related(
PREFETCH_RELATED_FIELDS
)
)
@author_router.post("/", response_model=Author, dependencies=[Depends(Params)])
async def create_author(data: CreateAuthor):
author = await AuthorDB.objects.create(**data.dict())
return await AuthorDB.objects.prefetch_related(PREFETCH_RELATED).get(id=author.id)
return (
await AuthorDB.objects.select_related(SELECT_RELATED_FIELDS)
.prefetch_related(PREFETCH_RELATED_FIELDS)
.get(id=author.id)
)
@author_router.get("/random", response_model=Author)
async def get_random_author(allowed_langs: list[str] = Depends(get_allowed_langs)):
author_id = await GetRandomAuthorService.get_random_id(allowed_langs)
return await AuthorDB.objects.prefetch_related(PREFETCH_RELATED).get(id=author_id)
return (
await AuthorDB.objects.select_related(SELECT_RELATED_FIELDS)
.prefetch_related(PREFETCH_RELATED_FIELDS)
.get(id=author_id)
)
@author_router.get("/{id}", response_model=Author)
async def get_author(id: int):
author = await AuthorDB.objects.prefetch_related(PREFETCH_RELATED).get_or_none(
id=id
author = (
await AuthorDB.objects.select_related(SELECT_RELATED_FIELDS)
.prefetch_related(PREFETCH_RELATED_FIELDS)
.get_or_none(id=id)
)
if author is None:
@@ -92,7 +107,8 @@ async def get_author_books(
id: int, allowed_langs: list[str] = Depends(get_allowed_langs)
):
return await paginate(
BookDB.objects.select_related(["source", "annotations", "translators"])
BookDB.objects.select_related(["source"])
.prefetch_related(["annotations", "translators"])
.filter(authors__id=id, lang__in=allowed_langs, is_deleted=False)
.order_by("title")
)
@@ -121,7 +137,9 @@ async def get_translated_books(
id: int, allowed_langs: list[str] = Depends(get_allowed_langs)
):
return await paginate(
BookDB.objects.select_related(["source", "annotations", "authors"]).filter(
BookDB.objects.select_related(["source"])
.prefetch_related(["annotations", "authors"])
.filter(
translators__id=id,
lang__in=allowed_langs,
is_deleted=False,