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§
source§impl Clone for MaybeFirstRowTypedError
impl Clone for MaybeFirstRowTypedError
source§fn clone(&self) -> MaybeFirstRowTypedError
fn clone(&self) -> MaybeFirstRowTypedError
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for MaybeFirstRowTypedError
impl Debug for MaybeFirstRowTypedError
source§impl Display for MaybeFirstRowTypedError
impl Display for MaybeFirstRowTypedError
source§impl Error for MaybeFirstRowTypedError
impl Error for MaybeFirstRowTypedError
source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
1.0.0 · source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()
source§impl From<FromRowError> for MaybeFirstRowTypedError
impl From<FromRowError> for MaybeFirstRowTypedError
source§fn from(source: FromRowError) -> Self
fn from(source: FromRowError) -> Self
Converts to this type from the input type.
source§impl From<RowsExpectedError> for MaybeFirstRowTypedError
impl From<RowsExpectedError> for MaybeFirstRowTypedError
source§fn from(source: RowsExpectedError) -> Self
fn from(source: RowsExpectedError) -> Self
Converts to this type from the input type.
source§impl PartialEq for MaybeFirstRowTypedError
impl PartialEq for MaybeFirstRowTypedError
source§fn 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 ==
.impl Eq 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§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Checks if this value is equivalent to the given key. Read more
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.