Enum CovenMigrationError 

pub enum CovenMigrationError {
    ReadOnly,
    SchemaTooNew {
        current: u32,
        supported: u32,
    },
    Failed {
        source: Box<DbError>,
    },
}

Coven’s local tables cannot be used at this version (Appendix C.1, E1).

Variants

ReadOnly

The read-only connection cannot migrate coven’s tables.

SchemaTooNew

The internal schema requires a newer coven.

Fields

current: u32

The database’s internal schema version.

supported: u32

The internal schema version this coven supports.

Failed

A migration failed and its transaction rolled back.

Fields

source: Box<DbError>

The failure, including any rollback error.

Trait Implementations

impl Debug for CovenMigrationError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for CovenMigrationError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for CovenMigrationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<CovenMigrationError> for CovenError

fn from(source: CovenMigrationError) -> Self

Converts to this type from the input type.