Add default_fields attribute to VariableRead model and update create_variable method in VariableService

src/backend/base/langflow/services/database/models/variable/model.py

@@ -52,6 +52,7 @@ class VariableRead(SQLModel):
     id: UUID
     name: Optional[str] = Field(None, description="Name of the variable")
     type: Optional[str] = Field(None, description="Type of the variable")
+    default_fields: Optional[List[str]] = Field(None, description="Default fields for the variable")
 
 
 class VariableUpdate(SQLModel):

src/backend/base/langflow/services/variable/service.py

@@ -30,7 +30,14 @@ class VariableService(Service):
                 if var in os.environ:
                     logger.debug(f"Creating {var} variable from environment.")
                     try:
-                        self.create_variable(user_id, var, os.environ[var], _type="Credential", session=session)
+                        self.create_variable(
+                            user_id=user_id,
+                            name=var,
+                            value=os.environ[var],
+                            default_fields=[],
+                            _type="Credential",
+                            session=session,
+                        )
                     except Exception as e:
                         logger.error(f"Error creating {var} variable: {e}")
 
@@ -91,6 +98,7 @@ class VariableService(Service):
         user_id: Union[UUID, str],
         name: str,
         value: str,
+        default_fields: list[str] = [],
         _type: str = "Generic",
         session: Session = Depends(get_session),
     ):
@@ -98,6 +106,7 @@ class VariableService(Service):
             name=name,
             type=_type,
             value=auth_utils.encrypt_api_key(value, settings_service=self.settings_service),
+            default_fields=default_fields,
         )
         variable = Variable.model_validate(variable_base, from_attributes=True, update={"user_id": user_id})
         session.add(variable)