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Validate uniqueness before transform #600

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Merged
chinyeungli merged 3 commits into from
Mar 2, 2026
Merged

Validate uniqueness before transform #600

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549b5b3
Handle duplicated keys before doing transform's field_renamings #541
chinyeungli Mar 2, 2026
a6fc63a
Merge branch 'develop' into 541_validate_uniqueness_before_transform
chinyeungli Mar 2, 2026
e711c38
Update code formatting #541
chinyeungli Mar 2, 2026
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15 changes: 15 additions & 0 deletions src/attributecode/cmd.py
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Original file line number Diff line number Diff line change
Expand Up @@ -932,6 +932,21 @@ def transform(location, output, configuration, worksheet, quiet, verbose): # NO
elif location.endswith(".xlsx"):
new_data, errors = transform_excel(location, worksheet)

data_keys = new_data[0].keys() if new_data else []
transformer_keys = transformer.field_renamings.keys()
dup_keys = []

for key in transformer_keys:
if key in data_keys:
dup_keys.append(key)

if dup_keys:
msg = "The following field(s) in the input data are duplicated in the transformer field renamings: {dup_keys}.\nPlease correct and re-run.".format(
**locals()
)
click.echo(msg)
sys.exit(1)

if not errors:
updated_data, errors = transform_data(new_data, transformer)

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