Skip to main content

MapQueryIterator

qusql_mysql::connection

Struct MapQueryIterator 

Source 
pub struct MapQueryIterator<'a, M>
where
    for<'b> M: RowMap<'b>,
{ /* private fields */ }
Expand description

Iterate over mapped rows in a query result

Implementations§

Source§

impl<'a, M> MapQueryIterator<'a, M>
where for<'b> M: RowMap<'b>,

Source

pub async fn next<'b>( &'b mut self, ) -> Result<Option<<M as RowMap<'b>>::T>, <M as RowMap<'b>>::E>

Fetch the next row from the result mapped using M

The returned future is cancel-safe.

Auto Trait Implementations§

§

impl<'a, M> Freeze for MapQueryIterator<'a, M>

§

impl<'a, M> RefUnwindSafe for MapQueryIterator<'a, M>
where M: RefUnwindSafe,

§

impl<'a, M> Send for MapQueryIterator<'a, M>
where M: Send,

§

impl<'a, M> Sync for MapQueryIterator<'a, M>
where M: Sync,

§

impl<'a, M> Unpin for MapQueryIterator<'a, M>
where M: Unpin,

§

impl<'a, M> !UnwindSafe for MapQueryIterator<'a, M>

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V