prisma-relations-mapping

Prisma migrations convert relation names to PascalCase, but frontend code expects camelCase, causing data-mapping gaps and runtime errors. You need to apply PascalCase-to-camelCase mapping in the API layer before sending responses to clients.

Implement API-level mappers that convert PascalCase relations to camelCase before sending responses. This includes mapping rules for include, select, and nested relation mappings to prevent undefined or 500 errors.

The best way is enforcing mapping in the API layer with robust error handling. Use reusable mapping patterns and templates to align backend Prisma results with frontend expectations for consistent key naming.

Yes, consistent mapping rules apply across planning, site, personnel, and leave modules covering 121 models. The rules handle includes, counts, and nested relations to prevent runtime errors and maintain frontend compatibility.

Yes, post-migration Prisma produces PascalCase relation names that break snake_case collections and frontend camelCase expectations. Mapping rules enforce snake_case for collections and frontend-friendly key renaming in the API layer.

Fix it by applying PascalCase-to-camelCase mapping in your API routes with robust error handling. Use reusable mapping templates to ensure backend Prisma results align with frontend API contracts and prevent 500 errors.