Enum MigrateError 

pub enum MigrateError {
    Pool(PoolError),
    Query(Error),
    Apply {
        version: String,
        source: Error,
    },
    KatexHtml {
        table: &'static str,
        id: i64,
        source: RewritingError,
    },
}

迁移执行错误。

Variants

Pool(PoolError)

无法从连接池获取连接。

Query(Error)

执行查询（建表、查版本、咨询锁等）失败。

Apply

某个具体迁移执行失败（包含版本号便于定位）。

Fields

version: String

source: Error

KatexHtml

迁移 026 的 HTML 解析/改写失败；整笔迁移回滚，不丢弃正文。

Fields

table: &'static str

id: i64

source: RewritingError

Trait Implementations

impl Debug for MigrateError

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

Formats the value using the given formatter.

impl Display for MigrateError

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

Formats the value using the given formatter.

impl Error for MigrateError

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 MigrateError

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<PoolError<Error>> for MigrateError

fn from(e: PoolError) -> Self

Converts to this type from the input type.