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refactor: Fix variable type check in VariableService

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ogabrielluiz 2024-06-17 18:49:18 -03:00
commit 8b598ac103
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src/backend/base/langflow/services/variable/service.py
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@ -61,7 +61,7 @@ class VariableService(Service):
# credential = session.query(Variable).filter(Variable.user_id == user_id, Variable.name == name).first()
variable = session.exec(select(Variable).where(Variable.user_id == user_id, Variable.name == name)).first()
if variable.type == "Credential" and field == "session_id":
if variable and variable.type == "Credential" and field == "session_id":
raise TypeError(
f"variable {name} of type 'Credential' cannot be used in a Session ID field "
"because its purpose is to prevent the exposure of values."