Struct Migration

pub struct Migration { /* private fields */ }

Available on crate feature unstable-migration only.

A migration step.

Implementations

impl Migration

pub fn new<F>(version: impl Semver, up: F) -> Migration

where F: Fn(&mut StoreState) -> Result<(), Error> + Send + Sync + 'static,

Creates a new migration.

Panics

Panics if the version is not a valid semver.

pub fn version(&self) -> &Version

Version of the migration.

Trait Implementations

impl Ord for Migration

fn cmp(&self, other: &Migration) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Migration

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Migration

fn partial_cmp(&self, other: &Migration) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Migration