# File lib/active_record/connection_adapters/postgresql_adapter.rb, line 1157 def translate_exception(exception, message) case exception.result.error_field(PGresult::PG_DIAG_SQLSTATE) when UNIQUE_VIOLATION RecordNotUnique.new(message, exception) when FOREIGN_KEY_VIOLATION InvalidForeignKey.new(message, exception) else super end end