Enum UndoTarget 

pub enum UndoTarget {
    Last,
    Version(MigrationVersion),
    Count(usize),
}

How many / which versions to undo.

Variants

Last

Undo the single most recently applied migration.

Version(MigrationVersion)

Undo all migrations above this version (the target version itself stays applied).

Count(usize)

Undo the last N applied migrations in reverse order.

Trait Implementations

impl Clone for UndoTarget

fn clone(&self) -> UndoTarget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UndoTarget

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

Formats the value using the given formatter.