PLU-393: Variables: keys with . may be single key or nested path

[kevinkim-ogp]

TL;DR

New MyInfo Child fields from FormSG returns data with . as part of the key (e.g., child.birthdate).

Libraries like lodash.get treat . as a path separator for nested properties (e.g., accessing child.birthdate), leading to incorrect value retrieval or failure.

What changed?

• Replaced the . in keys with _ to avoid issues with obtaining values.

How to test?

1. Run the test suite to verify all scenarios pass
2. Test with actual FormSG fields from MyInfo Child

Why make this change?

The standard lodash.get function doesn't properly handle cases where object keys contain dots, leading to incorrect property access. This implementation provides more accurate property resolution.

[kevinkim-ogp]

• PLU-394: FormSG MyInfo Child Birth date in dd/MM/yyyy format #832
• PLU-393: Variables: keys with . may be single key or nested path #831 👈 (View in Graphite)
• develop-v2

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[linear]

PLU-394 Formatter: FormSG MyInfo Child Birth date in dd/MM/yyyy format

[linear]

PLU-393 Variables: keys with . may be single key or nested path

[datadog-opengovsg]

Datadog Report

Branch report: fix/formsg/var-single-keys-with-dot
Commit report: da9ac46
Test service: plumber

✅ 0 Failed, 732 Passed, 0 Skipped, 2m 9.01s Total Time
➡️ Test Sessions change in coverage: 1 no change