Enum rusqlite_migration::MigrationDefinitionError

#[non_exhaustive]
pub enum MigrationDefinitionError {
    DownNotDefined {
        migration_index: usize,
    },
    NoMigrationsDefined,
    DatabaseTooFarAhead,
}

Errors related to schema versions

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.

DownNotDefined

Fields

migration_index: usize

Index of the migration that caused the error

Migration has no down version

NoMigrationsDefined

Attempt to migrate when no migrations are defined

DatabaseTooFarAhead

Attempt to migrate when the database is currently at a higher migration level (see https://github.com/cljoly/rusqlite_migration/issues/17)

Trait Implementations

impl Clone for MigrationDefinitionError

fn clone(&self) -> MigrationDefinitionError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MigrationDefinitionError

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

Formats the value using the given formatter.

impl Display for MigrationDefinitionError

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

Formats the value using the given formatter.

impl Error for MigrationDefinitionError

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

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 PartialEq for MigrationDefinitionError

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

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

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

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

impl Copy for MigrationDefinitionError

impl Eq for MigrationDefinitionError

impl StructuralPartialEq for MigrationDefinitionError