Enum MigrationError 

pub enum MigrationError {
    InvalidRegistration(String),
    InvalidRecord(String),
    Application(String),
}

A deterministic application schema migration failure.

Variants

InvalidRegistration(String)

The registered descriptors cannot form one adjacent migration step.

InvalidRecord(String)

A stored source record or transformed target record violated its type contract.

Application(String)

The application rejected a source record without exposing its contents.

Implementations

impl MigrationError

pub fn application(message: impl Into<String>) -> Self

Creates a redacted application-level transform failure.

Trait Implementations

impl Clone for MigrationError

fn clone(&self) -> MigrationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationError

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

Formats the value using the given formatter.

impl Display for MigrationError

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

Formats the value using the given formatter.

impl Error for MigrationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<MigrationError> for DbError

fn from(source: MigrationError) -> Self

Converts to this type from the input type.

impl PartialEq for MigrationError

fn eq(&self, other: &MigrationError) -> 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 Eq for MigrationError

impl StructuralPartialEq for MigrationError