Struct DbError 

pub struct DbError(/* private fields */);

A database failure as the guest sees it: the Postgres error fields when the server reported one, and a DbErrorKind either way. Boxed so a Result<_, DbError> stays a pointer wide; the fields read through Deref.

Implementations

impl DbError

pub fn new(kind: DbErrorKind, message: impl Into<String>) -> Self

An error raised outside the server, with no Postgres fields.

pub fn unavailable() -> Self

What every database call returns where there is no platform to run it.

pub fn is_retryable(&self) -> bool

A serialization failure or deadlock: the transaction may succeed if run again.

pub fn is_constraint_violation(&self) -> bool

Trait Implementations

impl Clone for DbError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DbError

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

Formats the value using the given formatter.

impl Deref for DbError

type Target = DbErrorFields

The resulting type after dereferencing.

fn deref(&self) -> &DbErrorFields

Dereferences the value.

impl DerefMut for DbError

fn deref_mut(&mut self) -> &mut DbErrorFields

Mutably dereferences the value.

impl<'de> Deserialize<'de> for DbError

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DbError

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

Formats the value using the given formatter.

impl Eq for DbError

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<DbErrorFields> for DbError

fn from(fields: DbErrorFields) -> Self

Converts to this type from the input type.

impl PartialEq for DbError

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DbError

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 DbError