Enum Error

#[non_exhaustive]
pub enum Error {
    Execute(Box<dyn StdError + Send + Sync + 'static>),
    ExecuteMigration(Box<dyn StdError + Send + Sync + 'static>, MigrationId, bool),
    ResolveQuery(String),
    Sql(Error),
    VersionMissing(i64),
    VersionModified(i64, String, String),
    VersionNotPresent(i64),
    VersionTooOld(i64),
    VersionTooNew(i64),
}

All the ways the lifecycle of applying migrations can end in failure.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Execute(Box<dyn StdError + Send + Sync + 'static>)

An error that came from applying migrations.

ExecuteMigration(Box<dyn StdError + Send + Sync + 'static>, MigrationId, bool)

Error from one migration.

ResolveQuery(String)

Error resolving query before migration.

Sql(Error)

Error processing a migration source.

VersionMissing(i64)

A migration found in schema history is missing from the source.

VersionModified(i64, String, String)

The migration content has changed between runs.

VersionNotPresent(i64)

A version specified does not exist in the source.

VersionTooOld(i64)

A version specified is older than would be valid for the operation requested.

VersionTooNew(i64)

A version specified is newer than would be valid for the operation requested.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn from(source: Error) -> Self

Converts to this type from the input type.