File size: 470 Bytes
2cd1b38 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | """Domain and persistence errors for the review app."""
class DatabaseError(Exception):
"""Base class for data-layer failures."""
class DuplicateRecordError(DatabaseError):
"""Postgres UNIQUE constraint violation."""
class DuplicateFeedbackError(DuplicateRecordError):
"""Feedback already submitted for this session and task."""
class DuplicateSessionError(DuplicateRecordError):
"""Session already exists for this invite (concurrent create)."""
|