feat: add DatasetCreateValidator and move some validations from context

argilla-server/src/argilla_server/contexts/datasets.py

@@ -79,6 +79,7 @@
 )
 from argilla_server.models.suggestions import SuggestionCreateWithRecordId
 from argilla_server.search_engine import SearchEngine
+from argilla_server.validators.datasets import DatasetCreateValidator
 from argilla_server.validators.responses import (
     ResponseCreateValidator,
     ResponseUpdateValidator,
@@ -120,23 +121,18 @@ async def list_datasets_by_workspace_id(db: AsyncSession, workspace_id: UUID) ->
 
 
 async def create_dataset(db: AsyncSession, dataset_attrs: dict):
-    if await Workspace.get(db, dataset_attrs["workspace_id"]) is None:
-        raise UnprocessableEntityError(f"Workspace with id `{dataset_attrs['workspace_id']}` not found")
-
-    if await Dataset.get_by(db, name=dataset_attrs["name"], workspace_id=dataset_attrs["workspace_id"]):
-        raise NotUniqueError(
-            f"Dataset with name `{dataset_attrs['name']}` already exists for workspace with id `{dataset_attrs['workspace_id']}`"
-        )
-
-    return await Dataset.create(
-        db,
+    dataset = Dataset(
         name=dataset_attrs["name"],
         guidelines=dataset_attrs["guidelines"],
         allow_extra_metadata=dataset_attrs["allow_extra_metadata"],
         distribution=dataset_attrs["distribution"],
         workspace_id=dataset_attrs["workspace_id"],
     )
 
+    await DatasetCreateValidator.validate(db, dataset)
+
+    return await dataset.save(db)
+
 
 async def _count_required_fields_by_dataset_id(db: AsyncSession, dataset_id: UUID) -> int:
     return (await db.execute(select(func.count(Field.id)).filter_by(dataset_id=dataset_id, required=True))).scalar_one()

argilla-server/src/argilla_server/validators/datasets.py

@@ -0,0 +1,37 @@
+#  Copyright 2021-present, the Recognai S.L. team.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+from uuid import UUID
+
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from argilla_server.errors.future import NotUniqueError, UnprocessableEntityError
+from argilla_server.models import Dataset, Workspace
+
+
+class DatasetCreateValidator:
+    @classmethod
+    async def validate(cls, db, dataset: Dataset) -> None:
+        await cls._validate_workspace_is_present(db, dataset.workspace_id)
+        await cls._validate_name_is_not_duplicated(db, dataset.name, dataset.workspace_id)
+
+    @classmethod
+    async def _validate_workspace_is_present(cls, db, workspace_id: UUID) -> None:
+        if await Workspace.get(db, workspace_id) is None:
+            raise UnprocessableEntityError(f"Workspace with id `{workspace_id}` not found")
+
+    @classmethod
+    async def _validate_name_is_not_duplicated(cls, db, name: str, workspace_id: UUID) -> None:
+        if await Dataset.get_by(db, name=name, workspace_id=workspace_id):
+            raise NotUniqueError(f"Dataset with name `{name}` already exists for workspace with id `{workspace_id}`")