Fix SA2.0 usage in managers.datasets

lib/galaxy/managers/datasets.py

@@ -13,6 +13,8 @@ from typing import (
     TypeVar,
 )
 
+from sqlalchemy import select
+
 from galaxy import (
     exceptions,
     model,
@@ -25,6 +27,10 @@ from galaxy.managers import (
     secured,
     users,
 )
+from galaxy.model import (
+    Dataset,
+    DatasetHash,
+)
 from galaxy.model.base import transaction
 from galaxy.schema.tasks import (
     ComputeDatasetHashTaskRequest,
@@ -103,7 +109,7 @@ class DatasetManager(base.ModelManager[model.Dataset], secured.AccessibleManager
         self.error_unless_dataset_purge_allowed()
         with self.session().begin():
             for dataset_id in request.dataset_ids:
-                dataset: model.Dataset = self.session().query(model.Dataset).get(dataset_id)
+                dataset: Dataset = self.session().get(Dataset, dataset_id)
                 if dataset.user_can_purge:
                     try:
                         dataset.full_delete()
@@ -158,15 +164,7 @@ class DatasetManager(base.ModelManager[model.Dataset], secured.AccessibleManager
         # TODO: replace/update if the combination of dataset_id/hash_function has already
         # been stored.
         sa_session = self.session()
-        hash = (
-            sa_session.query(model.DatasetHash)
-            .filter(
-                model.DatasetHash.dataset_id == dataset.id,
-                model.DatasetHash.hash_function == hash_function,
-                model.DatasetHash.extra_files_path == extra_files_path,
-            )
-            .one_or_none()
-        )
+        hash = get_dataset_hash(sa_session, dataset.id, hash_function, extra_files_path)
         if hash is None:
             sa_session.add(dataset_hash)
             with transaction(sa_session):
@@ -477,7 +475,7 @@ class DatasetAssociationManager(
 
     def detect_datatype(self, trans, dataset_assoc):
         """Sniff and assign the datatype to a given dataset association (ldda or hda)"""
-        data = trans.sa_session.query(self.model_class).get(dataset_assoc.id)
+        data = trans.sa_session.get(self.model_class, dataset_assoc.id)
         self.ensure_can_change_datatype(data)
         self.ensure_can_set_metadata(data)
         path = data.dataset.get_file_name()
@@ -489,7 +487,7 @@ class DatasetAssociationManager(
 
     def set_metadata(self, trans, dataset_assoc, overwrite=False, validate=True):
         """Trigger a job that detects and sets metadata on a given dataset association (ldda or hda)"""
-        data = trans.sa_session.query(self.model_class).get(dataset_assoc.id)
+        data = trans.sa_session.get(self.model_class, dataset_assoc.id)
         self.ensure_can_set_metadata(data)
         if overwrite:
             self.overwrite_metadata(data)
@@ -874,3 +872,13 @@ class DatasetAssociationFilterParser(base.ModelFilterParser, deletable.PurgableF
             if datatype_class:
                 comparison_classes.append(datatype_class)
         return comparison_classes and isinstance(dataset_assoc.datatype, tuple(comparison_classes))
+
+
+def get_dataset_hash(session, dataset_id, hash_function, extra_files_path):
+    stmt = (
+        select(DatasetHash)
+        .where(DatasetHash.dataset_id == dataset_id)
+        .where(DatasetHash.hash_function == hash_function)
+        .where(DatasetHash.extra_files_path == extra_files_path)
+    )
+    return session.scalars(stmt).one_or_none()