Enum MigrationError 

pub enum MigrationError {
    DatabaseError(String),
    AlreadyApplied(i64),
    NotFound(i64),
    ChecksumMismatch {
        version: i64,
        expected: String,
        actual: String,
    },
    LockError(String),
    FailedState(i64),
    InvalidVersion(i64),
    MigrationGap(i64),
    IoError(Error),
    SerializationError(Error),
    Custom(String),
}

Main error type for migration operations

Variants

DatabaseError(String)

Database operation failed

AlreadyApplied(i64)

Migration has already been applied

NotFound(i64)

Migration was not found

ChecksumMismatch

Checksum verification failed

Fields

version: i64

Migration version

expected: String

Expected checksum

actual: String

Actual checksum

LockError(String)

Lock acquisition failed

FailedState(i64)

Migration is in a failed state

InvalidVersion(i64)

Invalid migration version

MigrationGap(i64)

Migration gap detected

IoError(Error)

IO error occurred

SerializationError(Error)

Serialization error

Custom(String)

Custom error

Implementations

impl MigrationError

pub fn database<S: Into<String>>(msg: S) -> Self

Create a new database error

pub fn custom<S: Into<String>>(msg: S) -> Self

Create a new custom error

Trait Implementations

impl Debug for MigrationError

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

Formats the value using the given formatter.

impl Display for MigrationError

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

Formats the value using the given formatter.

impl Error for MigrationError

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<Error> for MigrationError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for MigrationError

fn from(source: Error) -> Self

Converts to this type from the input type.