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Allow empty names in mapped field of Name Mapping #927

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merged 5 commits into from
Jul 14, 2024
Merged

Allow empty names in mapped field of Name Mapping #927

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c9bfa27
Remove check_at_least_one field validator
spock-abadai Jul 13, 2024
15b05c7
Remove irrelevant test case
spock-abadai Jul 13, 2024
12c3591
Fixing pydantic model
spock-abadai Jul 14, 2024
f7ef81c
Added test case for empty names in name mapping
spock-abadai Jul 14, 2024
9bea754
Fixed formatting error
spock-abadai Jul 14, 2024
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12 changes: 0 additions & 12 deletions pyiceberg/table/name_mapping.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,18 +45,6 @@ class MappedField(IcebergBaseModel):
def convert_null_to_empty_List(cls, v: Any) -> Any:
return v or []

@field_validator("names", mode="after")
@classmethod
def check_at_least_one(cls, v: List[str]) -> Any:
"""
Conlist constraint does not seem to be validating the class on instantiation.

Adding a custom validator to enforce min_length=1 constraint.
"""
if len(v) < 1:
raise ValueError("At least one mapped name must be provided for the field")
return v

@model_serializer
def ser_model(self) -> Dict[str, Any]:
"""Set custom serializer to leave out the field when it is empty."""
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