error handling when attempting to save MARC record with invalid tag could be friendlier

[Galen Charlton]

When attempting to save a bib record that contains an invalid tag number (e.g., "65="), the Evergreen staff client displays an error message like this:

Error creating MARC record.

DATABASE_QUERY_FAILED
The attempt to query to the DB failed

The error originates from a data validity check in MARC::Record as invoked by one of the database triggers invoked when a row is inserted into biblio.record_entry. The check itself is fine, but the way that the error is presented to the user is less than ideal:

- the MARC editor doesn't highlight the offending tag number
- the error message doesn't make it clear that the problem has to do with the user input

Potential ways to improve this:

- do a bit more client-side validation
- pass a bit more information up the line

Evergreen master

[Andrea Neiman (aneiman)]

Still an issue in the webclient, only the error is simply "Could not save the record!" which, while marginally more friendly than DATABASE_QUERY_FAILED, is not as nice as Galen's suggested approaches.