Enum SqlErr 

#[non_exhaustive]
pub enum SqlErr {
    UniqueConstraintViolation(String),
    ForeignKeyConstraintViolation(String),
}

A portable, backend-agnostic classification of the most common SQL constraint violations, produced by DbErr::sql_err.

Only unique-key and foreign-key violations are recognized. For any other failure, or for backend-specific detail (SQLSTATE, driver error codes, check constraints, and so on), inspect the underlying driver error instead — see DbErr::sql_err for the pattern.

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.

UniqueConstraintViolation(String)

Error for duplicate record in unique field or primary key field

ForeignKeyConstraintViolation(String)

Error for Foreign key constraint

Trait Implementations

impl Clone for SqlErr

fn clone(&self) -> SqlErr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SqlErr

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

Formats the value using the given formatter.

impl Display for SqlErr

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

Formats the value using the given formatter.

impl Eq for SqlErr

impl Error for SqlErr

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 PartialEq for SqlErr

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SqlErr