Source code for asyncqlio.exc

"""
Exceptions for asyncqlio.
"""

__all__ = ["DatabaseException", "SchemaError", "IntegrityError", "OperationalError",
           "NoSuchColumnError", "UnsupportedOperationException"]


[docs]class DatabaseException(Exception):
    """
    The base class for ALL exceptions.

    Catch this if you wish to catch any custom exception raised inside the lib.
    """


[docs]class SchemaError(DatabaseException):
    """
    Raised when there is an error in the database schema.
    """


[docs]class IntegrityError(DatabaseException):
    """
    Raised when a column's integrity is not preserved (e.g. null or unique violations).
    """


[docs]class OperationalError(DatabaseException):
    """
    Raised when an operational error has occurred.
    """


[docs]class NoSuchColumnError(DatabaseException):
    """
    Raised when a non-existing column is requested.
    """


[docs]class UnsupportedOperationException(DatabaseException):
    """
    Raised when an operation that the database driver doesn't support is attempted.
    """