pub enum MaybeFirstRowTypedError {
RowsExpected(RowsExpectedError),
FromRowError(FromRowError),
}
Variants
RowsExpected(RowsExpectedError)
QueryResult::maybe_first_row_typed()
called on a bad QueryResult.
Expected QueryResult.rows
to be Some
, but it was None
.
QueryResult.rows
is Some
for queries that can return rows (e.g SELECT
).
It is None
for queries that can’t return rows (e.g INSERT
).
FromRowError(FromRowError)
Parsing row as the given type failed
Trait Implementations
sourceimpl Debug for MaybeFirstRowTypedError
impl Debug for MaybeFirstRowTypedError
sourceimpl Display for MaybeFirstRowTypedError
impl Display for MaybeFirstRowTypedError
sourceimpl Error for MaybeFirstRowTypedError
impl Error for MaybeFirstRowTypedError
sourcefn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
sourcefn backtrace(&self) -> Option<&Backtrace>
fn backtrace(&self) -> Option<&Backtrace>
backtrace
)Returns a stack backtrace, if available, of where this error occurred. Read more
1.0.0 · sourcefn description(&self) -> &str
fn description(&self) -> &str
use the Display impl or to_string()
sourceimpl From<FromRowError> for MaybeFirstRowTypedError
impl From<FromRowError> for MaybeFirstRowTypedError
sourcefn from(source: FromRowError) -> Self
fn from(source: FromRowError) -> Self
Converts to this type from the input type.
sourceimpl From<RowsExpectedError> for MaybeFirstRowTypedError
impl From<RowsExpectedError> for MaybeFirstRowTypedError
sourcefn from(source: RowsExpectedError) -> Self
fn from(source: RowsExpectedError) -> Self
Converts to this type from the input type.
sourceimpl PartialEq<MaybeFirstRowTypedError> for MaybeFirstRowTypedError
impl PartialEq<MaybeFirstRowTypedError> for MaybeFirstRowTypedError
sourcefn eq(&self, other: &MaybeFirstRowTypedError) -> bool
fn eq(&self, other: &MaybeFirstRowTypedError) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &MaybeFirstRowTypedError) -> bool
fn ne(&self, other: &MaybeFirstRowTypedError) -> bool
This method tests for !=
.
impl Eq for MaybeFirstRowTypedError
impl StructuralEq for MaybeFirstRowTypedError
impl StructuralPartialEq for MaybeFirstRowTypedError
Auto Trait Implementations
impl RefUnwindSafe for MaybeFirstRowTypedError
impl Send for MaybeFirstRowTypedError
impl Sync for MaybeFirstRowTypedError
impl Unpin for MaybeFirstRowTypedError
impl UnwindSafe for MaybeFirstRowTypedError
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
fn vzip(self) -> V
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more