Errors

FastPG defines explicit exception classes in fastpg.errors.

Connection and configuration

• ReadConnectionNotAvailableError
• MultipleWriteConnectionsError
• InvalidConnectionNameError
• FastPGInstanceNotConfiguredError
• MalformedMetaError
• MalformedQuerysetError

Query construction and operators

• InvalidINClauseValueError
• UnsupportedOperatorError
• InvalidRelatedFieldError
• InvalidPrefetchError

Result shape and cardinality

• DoesNotExist
• MultipleRecordsFound

Mutation safety

• NothingToCreateError
• UnrestrictedUpdateError
• UnrestrictedDeleteError

Pagination

• InvalidPageError

Database execution

• DatabaseError
• DuplicateKeyDatabaseError

DatabaseError includes SQLSTATE and driver exception class name when available.