Trait frame_support::migrations::MultiStepMigrator

pub trait MultiStepMigrator {
    // Required methods
    fn ongoing() -> bool;
    fn step() -> Weight;
}

Something that can do multi step migrations.

Required Methods

fn ongoing() -> bool

Hint for whether Self::step should be called.

fn step() -> Weight

Do the next step in the MBM process.

Must gracefully handle the case that it is currently not upgrading.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl MultiStepMigrator for ()

fn ongoing() -> bool

fn step() -> Weight

Implementors