Struct MigrationMetadata 

pub struct MigrationMetadata {
    pub revision: Option<String>,
    pub down_revision: Option<String>,
    pub order_hint: Option<u64>,
    pub reversible: bool,
    pub evidence: DataEvidenceLine,
}

Ordering and ancestry metadata for one migration artifact.

Fields

revision: Option<String>

Framework revision identifier, when explicitly declared.

down_revision: Option<String>

Direct predecessor revision, when explicitly declared.

order_hint: Option<u64>

Leading numeric filename hint, when present.

reversible: bool

Whether an explicit downgrade entry point was observed.

evidence: DataEvidenceLine

Direct metadata or first-source line.

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 Debug for MigrationMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MigrationMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MigrationMetadata

impl Ord for MigrationMetadata

fn cmp(&self, other: &MigrationMetadata) -> 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 MigrationMetadata

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for MigrationMetadata

fn partial_cmp(&self, other: &MigrationMetadata) -> 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 Serialize for MigrationMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MigrationMetadata