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@ -12,6 +12,7 @@
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import typing as t
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from pathlib import Path
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from django.db import models, transaction
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@ -28,7 +29,7 @@ from . import app_settings
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UidValidator = RegexValidator(regex=r"^[a-zA-Z0-9\-_]{20,}$", message="Not a valid UID")
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def stoken_annotation_builder(stoken_id_fields):
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def stoken_annotation_builder(stoken_id_fields: t.List[str]):
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aggr_fields = [Coalesce(Max(field), V(0)) for field in stoken_id_fields]
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return Greatest(*aggr_fields) if len(aggr_fields) > 1 else aggr_fields[0]
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@ -37,6 +38,8 @@ class CollectionType(models.Model):
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owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
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uid = models.BinaryField(editable=True, blank=False, null=False, db_index=True, unique=True)
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objects: models.manager.BaseManager["CollectionType"]
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class Collection(models.Model):
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main_item = models.OneToOneField("CollectionItem", related_name="parent", null=True, on_delete=models.SET_NULL)
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@ -46,19 +49,21 @@ class Collection(models.Model):
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stoken_annotation = stoken_annotation_builder(["items__revisions__stoken", "members__stoken"])
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objects: models.manager.BaseManager["Collection"]
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def __str__(self):
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return self.uid
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@property
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def content(self):
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def content(self) -> "CollectionItemRevision":
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return self.main_item.content
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@property
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def etag(self):
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def etag(self) -> str:
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return self.content.uid
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@cached_property
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def stoken(self):
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def stoken(self) -> str:
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stoken_id = (
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self.__class__.objects.filter(main_item=self.main_item)
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.annotate(max_stoken=self.stoken_annotation)
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@ -80,6 +85,8 @@ class CollectionItem(models.Model):
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stoken_annotation = stoken_annotation_builder(["revisions__stoken"])
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objects: models.manager.BaseManager["CollectionItem"]
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class Meta:
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unique_together = ("uid", "collection")
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@ -87,23 +94,23 @@ class CollectionItem(models.Model):
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return "{} {}".format(self.uid, self.collection.uid)
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@cached_property
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def content(self):
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def content(self) -> "CollectionItemRevision":
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return self.revisions.get(current=True)
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@property
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def etag(self):
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def etag(self) -> str:
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return self.content.uid
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def chunk_directory_path(instance, filename):
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def chunk_directory_path(instance: "CollectionItemChunk", filename: str) -> Path:
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custom_func = app_settings.CHUNK_PATH_FUNC
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if custom_func is not None:
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return custom_func(instance, filename)
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col = instance.collection
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user_id = col.owner.id
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uid_prefix = instance.uid[:2]
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uid_rest = instance.uid[2:]
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col: Collection = instance.collection
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user_id: int = col.owner.id
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uid_prefix: str = instance.uid[:2]
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uid_rest: str = instance.uid[2:]
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return Path("user_{}".format(user_id), col.uid, uid_prefix, uid_rest)
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@ -112,6 +119,8 @@ class CollectionItemChunk(models.Model):
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collection = models.ForeignKey(Collection, related_name="chunks", on_delete=models.CASCADE)
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chunkFile = models.FileField(upload_to=chunk_directory_path, max_length=150, unique=True)
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objects: models.manager.BaseManager["CollectionItemChunk"]
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def __str__(self):
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return self.uid
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@ -135,6 +144,8 @@ class Stoken(models.Model):
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validators=[UidValidator],
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)
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objects: models.manager.BaseManager["Stoken"]
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class CollectionItemRevision(models.Model):
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stoken = models.OneToOneField(Stoken, on_delete=models.PROTECT)
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@ -146,6 +157,8 @@ class CollectionItemRevision(models.Model):
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current = models.BooleanField(db_index=True, default=True, null=True)
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deleted = models.BooleanField(default=False)
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objects: models.manager.BaseManager["CollectionItemRevision"]
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class Meta:
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unique_together = ("item", "current")
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@ -157,6 +170,8 @@ class RevisionChunkRelation(models.Model):
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chunk = models.ForeignKey(CollectionItemChunk, related_name="revisions_relation", on_delete=models.CASCADE)
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revision = models.ForeignKey(CollectionItemRevision, related_name="chunks_relation", on_delete=models.CASCADE)
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objects: models.manager.BaseManager["RevisionChunkRelation"]
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class Meta:
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ordering = ("id",)
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@ -180,6 +195,8 @@ class CollectionMember(models.Model):
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stoken_annotation = stoken_annotation_builder(["stoken"])
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objects: models.manager.BaseManager["CollectionMember"]
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class Meta:
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unique_together = ("user", "collection")
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@ -204,6 +221,8 @@ class CollectionMemberRemoved(models.Model):
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collection = models.ForeignKey(Collection, related_name="removed_members", on_delete=models.CASCADE)
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user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
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objects: models.manager.BaseManager["CollectionMemberRemoved"]
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class Meta:
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unique_together = ("user", "collection")
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@ -225,6 +244,8 @@ class CollectionInvitation(models.Model):
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default=AccessLevels.READ_ONLY,
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)
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objects: models.manager.BaseManager["CollectionInvitation"]
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class Meta:
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unique_together = ("user", "fromMember")
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@ -232,7 +253,7 @@ class CollectionInvitation(models.Model):
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return "{} {}".format(self.fromMember.collection.uid, self.user)
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@cached_property
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def collection(self):
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def collection(self) -> Collection:
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return self.fromMember.collection
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@ -244,5 +265,7 @@ class UserInfo(models.Model):
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encryptedContent = models.BinaryField(editable=True, blank=False, null=False)
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salt = models.BinaryField(editable=True, blank=False, null=False)
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objects: models.manager.BaseManager["UserInfo"]
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def __str__(self):
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return "UserInfo<{}>".format(self.owner)
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