[rewrite] Minor fixes to models, session generator and example .env

.env-example

@@ -30,8 +30,10 @@ SMTP_HOST=
 SMTP_PORT=587
 SMTP_USER=
 SMTP_PASSWORD=
-SMTP_TLS=True  # Use TLS for email security
-SMTP_SSL=False  # Set to True if using SSL instead of TLS
+# Use TLS for email security
+SMTP_TLS=True
+# Set to True if using SSL instead of TLS
+SMTP_SSL=False
 
 # Email sender information
 EMAILS_FROM_EMAIL=

backend/app/api/routes/utils_routes.py

@@ -1,8 +1,12 @@
+import logging
+
 from sqlmodel import select
 
 from fastapi import APIRouter
 from app.api.dependencies import SessionDep
 
+logger = logging.getLogger(__name__)
+
 router = APIRouter(prefix="/utils", tags=["utils"])
 
 
@@ -10,11 +14,12 @@ router = APIRouter(prefix="/utils", tags=["utils"])
 async def health_check() -> bool:
     return True
 
+
 @router.get("/test-db/")
 async def test_db(session: SessionDep) -> bool:
     try:
-        with session:
-            session.exec(select(1))
-            return True
-    except Exception:
+        session.exec(select(1))
+        return True
+    except Exception as e:
+        logger.error(e)
         return False

backend/app/database/manager.py

@@ -9,7 +9,7 @@ from app.core.config import settings
 
 from app.database.exceptions import DatabaseError
 
-import app.database.models
+import app.database.models # pylint: disable=unused-import
 
 logger = logging.getLogger(__name__)
 
@@ -34,7 +34,6 @@ def cleanup() -> None:
     engine.dispose()
 
 
-@contextmanager
 def get_session() -> Generator[Session, None, None]:
     with Session(engine) as session:
         yield session

backend/app/database/models/user_model.py

@@ -26,7 +26,7 @@ class User(SQLModel, table=True):
     owned_shops: List["Shop"] = Relationship(back_populates="owner")
     registered_shop: List["Shop"] = Relationship(back_populates="registered_users")
 
-    role: Optional["UserRole"] = Relationship(back_populates="users")
+    user_assigned_role: Optional["UserRole"] = Relationship(back_populates="role_users", sa_relationship_kwargs={"foreign_keys": "[User.user_role_id]"})
     preferences: Optional["UserPreferences"] = Relationship(back_populates="user")
     statistics: Optional["UserStatistics"] = Relationship(back_populates="user_statistics")
 
@@ -45,7 +45,7 @@ class UserRole(SQLModel, table=True):
     id: int = Field(primary_key=True)
     name: str = Field(nullable=False, unique=True, max_length=50)
 
-    users = Relationship(back_populates="role")
+    role_users: List["User"] = Relationship(back_populates="user_assigned_role")
 
 
 class UserStatistics(SQLModel, table=True):