Enum MigrationError

pub enum MigrationError {
    MigrationDirectoryNotFound,
    UnknownMigrationFormat(PathBuf),
    IoError(Error),
    UnknownMigrationVersion(String),
    NoMigrationRun,
    // some variants omitted
}

Errors that occur while preparing to run migrations

Variants

MigrationDirectoryNotFound

The migration directory wasn’t found

UnknownMigrationFormat(PathBuf)

Provided migration was in an unknown format

IoError(Error)

General system IO error

UnknownMigrationVersion(String)

Provided migration had an incompatible version number

NoMigrationRun

No migrations had to be/ could be run

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

Formats the value using the given formatter.

impl Error for MigrationError

fn description(&self) -> &str

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

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

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

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(e: Error) -> Self

Converts to this type from the input type.

impl From<MigrationError> for RunMigrationsError

fn from(e: MigrationError) -> Self

Converts to this type from the input type.

impl PartialEq for MigrationError

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.