[jkalayan]

Summary

This pull request improves form validation and error handling in both the backend (biosimdb_interface/form/utils.py, biosimdb_interface/form/webform.py) and frontend (biosimdb_interface/static/js/form/metadata.js) of the metadata submission workflow.
Backend: Improved error handling and validation

• Added a custom FormConversionError exception to collect and report all form conversion errors with detailed messages, and updated form_to_json to raise this error when issues are detected.
• Refactored the /webform endpoint logic by splitting it into separate GET and POST handlers, with POST now returning grouped validation errors and handling both "save" and "submit" actions using dedicated handler functions.
• Improved vector field parsing by introducing a _parse_vector helper that supports both flat and multi-row vectors, with robust error messages for malformed input.
• Enhanced error grouping and response formatting for all validation steps (form conversion, unit conversion, schema validation), so the frontend receives structured error information.
• Added a global error handler for unexpected exceptions in the form blueprint, returning user-friendly JSON error responses.

Frontend: Better validation feedback and field highlighting

• Implemented new utility functions to render grouped validation errors as HTML, extract field names from error messages, and highlight corresponding form fields with is-invalid styling. This allows users to easily see which fields need correction.
• Updated form submission and metadata extraction handlers to use the new error rendering and field highlighting, significantly improving the user experience when fixing validation errors.
• Improved vector field handling in setNestedFields to support both flat and multi-row vectors, matching the backend's new parsing logic.
• Added a call to clear validation highlights when locking the form after a successful submission.

Tests: Inclusion of MetadataValidationError

• Added the error returned via MetadataValidationError in the metadata validation test.

Impact

• These improvements collectively make form validation more robust, actionable, and user-friendly, reducing frustration and error rates for users submitting metadata.

[coveralls]

Coverage Report for CI Build 39601897454

Warning

Build has drifted: This PR's base is out of sync with its target branch, so coverage data may include unrelated changes.
Quick fix: rebase this PR. Learn more →

Coverage decreased (-2.2%) to 89.686%

Details

• Coverage decreased (-2.2%) from the base build.
• Patch coverage: 25 uncovered changes across 2 files (79 of 104 lines covered, 75.96%).
• No coverage regressions found.

Uncovered Changes

File	Changed	Covered	%
biosimdb_interface/form/utils.py	29	14	48.28%
biosimdb_interface/form/webform.py	75	65	86.67%

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	795
Covered Lines:	713
Line Coverage:	89.69%
Coverage Strength:	8.07 hits per line

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💛 - Coveralls