ROA - safe navigation for when nil moleculartestingtype#170
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shilpigoeldev
approved these changes
Dec 11, 2025
bshand
reviewed
Dec 12, 2025
| genotype2 = raw_record['genotype2'] | ||
| next if MSH6_DOSAGE_MTYPE.include?(moltesttype) && !exon.scan(/MLPA/i).size.positive? | ||
| next if moltesttype.match?(/dosage/i) && !exon.match?(/MLPA|P003/i) | ||
| next if moltesttype&.match?(/dosage/i) && !exon.match?(/MLPA|P003/i) |
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Alternatively, if nil values are allowed, you can write these comparisons as:
next if /dosage/i.match?(moltesttype) && !/MLPA|P003/i.match?(exon)without needing to think about safe navigation.
However, in this case, I can see that having nil inputs for comparison might be a logical error, so maybe it's better to do what's happened here, fail with an exception, and then explicitly flag the exceptions with safe navigation.
irb> /el/.match?('hello')
=> true
irb> /el/.match?('world')
=> false
irb> /el/.match?(nil)
=> false
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Thanks Brian, yes nil values are acceptable in this case, i've amended the code to you suggested first option in a new PR #171
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Added in safe navigation operator to handle where molecular testing type is genuinly nil in the data.
All local tests passing successfully