Enum Error 

#[non_exhaustive]
pub enum Error {
    Execute(Box<dyn StdError + Send + Sync + 'static>),
    ExecuteMigration(Box<dyn StdError + Send + Sync + 'static>, MigrationId, bool),
    ResolveQuery(String),
    Sql(Error),
    Split(Error, usize),
    MissingSource {
        local: i64,
        history: i64,
        msg: String,
    },
    OutOfSync {
        at_issue: Vec<MigrationId>,
        msg: String,
    },
    Invalid(String),
    Partial {
        source: Box<dyn StdError + Send + Sync + 'static>,
        report: Report,
    },
}

All the ways the lifecycle of applying migrations can end in failure.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Execute(Box<dyn StdError + Send + Sync + 'static>)

An error that came from applying migrations.

ExecuteMigration(Box<dyn StdError + Send + Sync + 'static>, MigrationId, bool)

Error from one migration.

ResolveQuery(String)

An error resolving the query before applying. Can be used as a fallthrough to map arbitrary error types to when implementing QueryBuilder.

Sql(Error)

Error processing a migration source.

Split(Error, usize)

Error parsing a SQL source into statements.

MissingSource

Local migration source has fewer migrations than the history table.

Fields

local: i64

history: i64

msg: String

OutOfSync

The source migrations and the history are not synchronized in a way that is expected.

Fields

at_issue: Vec<MigrationId>

msg: String

Invalid(String)

The options passed are not valid.

Partial

An error occurred, resulting in a partial migration run.

Fields

source: Box<dyn StdError + Send + Sync + 'static>

report: Report

Implementations

impl Error

pub fn to_resolve_query_error<E>(e: E) -> Self

where E: Display,

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.