chore: use PurePosixPath type in sqlalchemy

components/renku_data_services/migrations/versions/584598f3b769_expand_and_separate_environments_from_.py

@@ -21,7 +21,7 @@
 mount_dir: str = "/home/jovyan/work"
 uid: int = 1000
 gid: int = 1000
-port: int = 4180
+port: int = 8888
 
 
 def upgrade() -> None:

components/renku_data_services/session/db.py

@@ -74,8 +74,8 @@ async def __insert_environment(
             container_image=new_environment.container_image,
             default_url=new_environment.default_url,
             port=new_environment.port,
-            working_directory=new_environment.working_directory.as_posix(),
-            mount_directory=new_environment.mount_directory.as_posix(),
+            working_directory=new_environment.working_directory,
+            mount_directory=new_environment.mount_directory,
             uid=new_environment.uid,
             gid=new_environment.gid,
             environment_kind=new_environment.environment_kind,
@@ -229,9 +229,7 @@ async def insert_launcher(
             raise errors.UnauthorizedError(message="You do not have the required permissions for this operation.")
 
         project_id = new_launcher.project_id
-        authorized = await self.project_authz.has_permission(
-            user, ResourceType.project, ULID.from_str(project_id), Scope.WRITE
-        )
+        authorized = await self.project_authz.has_permission(user, ResourceType.project, project_id, Scope.WRITE)
         if not authorized:
             raise errors.MissingResourceError(
                 message=f"Project with id '{project_id}' does not exist or you do not have access to it."

components/renku_data_services/session/orm.py

@@ -12,7 +12,7 @@
 from renku_data_services.crc.orm import ResourceClassORM
 from renku_data_services.project.orm import ProjectORM
 from renku_data_services.session import models
-from renku_data_services.utils.sqlalchemy import ULIDType
+from renku_data_services.utils.sqlalchemy import PurePosixPathType, ULIDType
 
 metadata_obj = MetaData(schema="sessions")  # Has to match alembic ini section name
 JSONVariant = JSON().with_variant(JSONB(), "postgresql")
@@ -51,8 +51,8 @@ class EnvironmentORM(BaseORM):
     """Default URL path to open in a session."""
 
     port: Mapped[int] = mapped_column("port")
-    working_directory: Mapped[str] = mapped_column("working_directory", String())
-    mount_directory: Mapped[str] = mapped_column("mount_directory", String())
+    working_directory: Mapped[PurePosixPath] = mapped_column("working_directory", PurePosixPathType)
+    mount_directory: Mapped[PurePosixPath] = mapped_column("mount_directory", PurePosixPathType)
     uid: Mapped[int] = mapped_column("uid")
     gid: Mapped[int] = mapped_column("gid")
     environment_kind: Mapped[models.EnvironmentKind] = mapped_column("environment_kind")
@@ -72,8 +72,8 @@ def dump(self) -> models.Environment:
             gid=self.gid,
             uid=self.uid,
             environment_kind=self.environment_kind,
-            mount_directory=PurePosixPath(self.mount_directory),
-            working_directory=PurePosixPath(self.working_directory),
+            mount_directory=self.mount_directory,
+            working_directory=self.working_directory,
             port=self.port,
             args=self.args,
             command=self.command,

components/renku_data_services/utils/sqlalchemy.py

@@ -1,5 +1,6 @@
 """Utilities for SQLAlchemy."""
 
+from pathlib import PurePosixPath
 from typing import cast
 
 from sqlalchemy import Dialect, types
@@ -23,3 +24,22 @@ def process_result_value(self, value: str | None, dialect: Dialect) -> ULID | No
         if value is None:
             return None
         return cast(ULID, ULID.from_str(value))  # cast because mypy doesn't understand ULID type annotations
+
+
+class PurePosixPathType(types.TypeDecorator):
+    """Wrapper type for Path <--> str conversion."""
+
+    impl = types.String
+    cache_ok = True
+
+    def process_bind_param(self, value: PurePosixPath | None, dialect: Dialect) -> str | None:
+        """Transform value for storing in the database."""
+        if value is None:
+            return None
+        return value.as_posix()
+
+    def process_result_value(self, value: str | None, dialect: Dialect) -> PurePosixPath | None:
+        """Transform string from database into PosixPath."""
+        if value is None:
+            return None
+        return PurePosixPath(value)

test/bases/renku_data_services/data_api/test_migrations.py

@@ -100,9 +100,8 @@ async def test_migration_to_f34b87ddd954(
 
 
 @pytest.mark.asyncio
-async def test_migration_to_584598f3b769(sanic_client_no_migrations: SanicASGITestClient, app_config: Config) -> None:
+async def test_migration_to_584598f3b769(app_config: Config) -> None:
     run_migrations_for_app("common", "dcc1c1ee662f")
-    sanic_client = sanic_client_no_migrations
     await app_config.kc_user_repo.initialize(app_config.kc_api)
     await app_config.group_repo.generate_user_namespaces()
     env_id = str(ULID())
@@ -122,14 +121,15 @@ async def test_migration_to_584598f3b769(sanic_client_no_migrations: SanicASGITe
             )
         )
     run_migrations_for_app("common", "584598f3b769")
-    _, response = await sanic_client.get("/api/data/environments")
-    assert response.status_code == 200, response.text
-    assert len(response.json) == 1
-    env = response.json[0]
+    async with app_config.db.async_session_maker() as session, session.begin():
+        res = await session.execute(sa.text("SELECT * FROM sessions.environments"))
+    data = res.all()
+    assert len(data) == 1
+    env = data[0]._mapping
     assert env["id"] == env_id
     assert env["name"] == "test"
     assert env["container_image"] == "test"
     assert env["default_url"] == "/test"
-    assert env["port"] == 4180
+    assert env["port"] == 8888
     assert env["uid"] == 1000
     assert env["gid"] == 1000