Enum GuardedError 

pub enum GuardedError {
    NoRowsAffected,
    TooManyRows {
        affected: u64,
    },
    EmptyUpdate,
    Db(DbErr),
}

Variants

NoRowsAffected

The conditional UPDATE matched zero rows — the predicate was not satisfied. For counter mutations this is the load-bearing “capacity exhausted” signal.

TooManyRows

The conditional UPDATE matched more than one row — every guarded update is morally a unique-key-equivalent operation; >1 indicates an index/uniqueness bug.

Fields

affected: u64

EmptyUpdate

The builder was executed with no set_* calls — a programming error. Without this guard, sea-orm’s Updater::exec short-circuits with rows_affected: 0, which would silently look like a predicate miss (see Pitfall 1 in 152-RESEARCH.md).

Db(DbErr)

Underlying SeaORM database error.

Trait Implementations

impl Debug for GuardedError

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

Formats the value using the given formatter.

impl Display for GuardedError

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

Formats the value using the given formatter.

impl Error for GuardedError

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<DbErr> for GuardedError

fn from(source: DbErr) -> Self

Converts to this type from the input type.