Struct DbError 

pub struct DbError { /* private fields */ }

A failure reported by a driver.

Its Display is the driver’s own account, which is what gets logged. Converted to Error it is the database’s error where PostgreSQL sent one – SQLSTATE, message, detail, hint, constraint – a connection error where the connection could not be used, and an internal error otherwise.

Implementations

impl DbError

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

A failure that is not PostgreSQL’s: a protocol or decoding fault.

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

A connection that cannot be used: one that could not be opened in time, was closed, or failed reading or writing.

pub fn database(message: impl Into<String>, error: DatabaseError) -> Self

An error PostgreSQL reported, with message as the driver phrased it.

pub fn queued(self) -> Self

This failure, as a Tx::queued statement’s.

pub fn as_database(&self) -> Option<&DatabaseError>

The error PostgreSQL reported, if it was one.

pub fn is_connection(&self) -> bool

Whether the connection was what failed, rather than a statement on it.

pub fn was_queued(&self) -> bool

Whether a Tx::queued statement failed, rather than the one it was reported by – a pre-request function refusing the request, say.

Trait Implementations

impl Debug for DbError

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

Formats the value using the given formatter.

impl Display for DbError

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

Formats the value using the given formatter.

impl Error for DbError

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<DbError> for Error

fn from(error: DbError) -> Self

Converts to this type from the input type.

impl From<Error> for DbError

fn from(e: Error) -> Self

Converts to this type from the input type.