elixir-ecto

Ecto changesets validate data and track changes by casting external parameters, applying validation functions, and structuring errors. They enable robust data validation even for embedded schemas outside the database layer.

Ecto.Multi handles multi-step database transactions by chaining operations into a composable data structure. This ensures reliable transactional flows with structured error handling and safe data access across concurrent operations.

Optimistic locking in Ecto ensures concurrency safety by adding a version counter to schemas. It prevents stale data overwrites during concurrent updates by checking the version and returning a structed error on conflicts.

Yes, you can build composable Ecto queries for flexible filtering and pagination. The pattern uses query building functions that dynamically append where clauses and offset limits based on runtime parameters.

Ecto implements multi-tenancy strategies and upsert patterns to maintain data integrity. You apply migration guidance and conflict resolution clauses to insert or update data safely within tenant-scoped boundaries.