Enum diesel::migration::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()

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

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for MigrationError

fn from(e: Error) -> Self

Performs the conversion.

impl From<MigrationError> for RunMigrationsError

fn from(e: MigrationError) -> Self

Performs the conversion.

impl PartialEq<MigrationError> for MigrationError

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.