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fix: The discriminator is empty and the judgment is incorrect #4166

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shaohuzhang1 merged 1 commit into from
Oct 10, 2025
+4 −1
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fix: The discriminator is empty and the judgment is incorrect #4166

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5 changes: 4 additions & 1 deletion apps/application/flow/compare/is_null_compare.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,4 +18,7 @@ def support(self, node_id, fields: List[str], source_value, compare, target_valu
return True

def compare(self, source_value, compare, target_value):
return source_value is None or len(source_value) == 0
try:
return source_value is None or len(source_value) == 0
except Exception as e:
return False
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@shaohuzhang1 shaohuzhang1 Oct 10, 2025

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The provided compare method has a potential enhancement to improve exception handling and readability:

def compare(self, source_value, compare, target_value):
    try:
        return source_value is None or not bool(len(source_value))
    except Exception as e:
        # Log the exception for debugging purposes if necessary
        print(f"Error in compare: {e}")
        return False

This modification uses Python's built-in boolean conversion with bool() on the length of source_value, which makes the code more concise and easier to understand. The logging line allows you to track any unexpected errors that occur during execution without the program crashing abruptly.

Additionally, ensure that all function signatures match the expected parameters required by your application logic. If the function is part of an API where these values must conform to specific types, additional checks can be added.

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