Struct MigrationMetadata 

pub struct MigrationMetadata {
    pub id: &'static str,
    pub reversible: bool,
    pub affects_cache: bool,
    pub affects_user_data: bool,
    pub summary: &'static str,
}

Downgrade metadata for one migration.

Fields

id: &'static str

Migration identifier returned by MigrationName::name().

reversible: bool

Whether down() actually restores a target-compatible schema/state.

affects_cache: bool

Whether rolling this migration back invalidates re-pullable image cache contents on disk.

affects_user_data: bool

Whether rolling this migration back may leave snapshots or disk-backed named volumes in a format the target release cannot read.

summary: &'static str

Short human-readable summary used in destructive downgrade prompts.

Trait Implementations

impl Clone for MigrationMetadata

fn clone(&self) -> MigrationMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MigrationMetadata

impl Debug for MigrationMetadata

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

Formats the value using the given formatter.

impl Eq for MigrationMetadata

impl PartialEq for MigrationMetadata

fn eq(&self, other: &MigrationMetadata) -> 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 StructuralPartialEq for MigrationMetadata