Comments (2)
mnbbrown
commented on July 1, 2024
I was exploring this earlier this week.. from my grep of the codebase it's not possible currently because __call__ in PydanticBaseSettingsSource doesn't get the current state of the settings model as an argument. See https://github.com/pydantic/pydantic-settings/blob/main/pydantic_settings/main.py#L181
If the current model was passed in the source itself could:
a. retrieve the current value of attributes to help build new attributes
b. decided if it should overwrite or not.
This PR is an imperfect solution to this problem but goes some way to addressing it. Imperfect because the current_state is untyped and it's a breaking change.
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hramezani
commented on July 1, 2024
Thanks @trondhindenes for reporting this issue.
Yes, as @mnbbrown described it is not possible right now.
We have to postpone it to V3 because it will introduce a breaking change.
I will mark it as a feature request and we can include this in V3
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