collection.py: save to db

This commit is contained in:
Tal Leibman 2020-12-26 12:39:20 +02:00 committed by Tom Hacohen
parent be7b830804
commit daac0c163b

View File

@ -2,13 +2,18 @@ import typing as t
from asgiref.sync import sync_to_async from asgiref.sync import sync_to_async
from django.contrib.auth import get_user_model from django.contrib.auth import get_user_model
from django.core import exceptions as django_exceptions
from django.core.files.base import ContentFile
from django.db import transaction
from django.db.models import Q from django.db.models import Q
from django.db.models import QuerySet from django.db.models import QuerySet
from fastapi import APIRouter, Depends, status from fastapi import APIRouter, Depends, status
from pydantic import BaseModel from pydantic import BaseModel
from django_etebase import models
from django_etebase.models import Collection, AccessLevels, CollectionMember from django_etebase.models import Collection, AccessLevels, CollectionMember
from .authentication import get_authenticated_user from .authentication import get_authenticated_user
from .execptions import ValidationError
from .msgpack import MsgpackRoute, MsgpackResponse from .msgpack import MsgpackRoute, MsgpackResponse
from .stoken_handler import filter_by_stoken_and_limit from .stoken_handler import filter_by_stoken_and_limit
@ -88,6 +93,7 @@ class Item(BaseModel):
uid: str uid: str
version: int version: int
etag: t.Optional[str] etag: t.Optional[str]
encryptionKey: t.Optional[bytes]
content: CollectionItemContent content: CollectionItemContent
@ -97,7 +103,72 @@ class CollectionItemIn(BaseModel):
item: Item item: Item
def process_revisions_for_item(item: models.CollectionItem, revision_data: CollectionItemContent):
chunks_objs = []
revision = models.CollectionItemRevision(**revision_data.dict(exclude={"chunks"}), item=item)
revision.validate_unique() # Verify there aren't any validation issues
for chunk in revision_data.chunks:
uid = chunk[0]
chunk_obj = models.CollectionItemChunk.objects.filter(uid=uid).first()
content = chunk[1] if len(chunk) > 1 else None
# If the chunk already exists we assume it's fine. Otherwise, we upload it.
if chunk_obj is None:
if content is not None:
chunk_obj = models.CollectionItemChunk(uid=uid, collection=item.collection)
chunk_obj.chunkFile.save("IGNORED", ContentFile(content))
chunk_obj.save()
else:
raise ValidationError("chunk_no_content", "Tried to create a new chunk without content")
chunks_objs.append(chunk_obj)
stoken = models.Stoken.objects.create()
revision.stoken = stoken
revision.save()
for chunk in chunks_objs:
models.RevisionChunkRelation.objects.create(chunk=chunk, revision=revision)
return revision
def _create(data: CollectionItemIn, user: User):
with transaction.atomic():
if data.item.etag is not None:
raise ValidationError("bad_etag", "etag is not null")
instance = models.Collection(uid=data.item.uid, owner=user)
try:
instance.validate_unique()
except django_exceptions.ValidationError:
raise ValidationError(
"unique_uid", "Collection with this uid already exists", status_code=status.HTTP_409_CONFLICT
)
instance.save()
main_item = models.CollectionItem.objects.create(
uid=data.item.uid, version=data.item.version, encryptionKey=data.item.encryptionKey, collection=instance
)
instance.main_item = main_item
instance.save()
# TODO
process_revisions_for_item(main_item, data.item.content)
collection_type_obj, _ = models.CollectionType.objects.get_or_create(uid=data.collectionType, owner=user)
models.CollectionMember(
collection=instance,
stoken=models.Stoken.objects.create(),
user=user,
accessLevel=models.AccessLevels.ADMIN,
encryptionKey=data.collectionKey,
collectionType=collection_type_obj,
).save()
@collection_router.post("/") @collection_router.post("/")
def create(data: CollectionItemIn): async def create(data: CollectionItemIn, user: User = Depends(get_authenticated_user)):
# FIXME save actual item await sync_to_async(_create)(data, user)
return MsgpackResponse({}, status_code=status.HTTP_201_CREATED) return MsgpackResponse({}, status_code=status.HTTP_201_CREATED)