Enum MigrationKind 

pub enum MigrationKind {
    Versioned(MigrationVersion),
    Repeatable,
    Undo(MigrationVersion),
}

Type-safe encoding of the migration variant.

Versioned migrations always have a version; repeatable migrations never do. This eliminates the Option<MigrationVersion> + MigrationType redundancy.

Variants

Versioned(MigrationVersion)

A versioned migration with an associated version number.

Repeatable

A repeatable migration that is re-applied whenever its checksum changes.

Undo(MigrationVersion)

An undo migration that reverses a specific versioned migration.

Trait Implementations

impl Clone for MigrationKind

fn clone(&self) -> MigrationKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationKind

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

Formats the value using the given formatter.