Trait RowStreamExtractExt

Source

pub trait RowStreamExtractExt: Sealed {
    // Required methods
    fn extract<T: ExtractOwned>(self) -> ExtractStream<T>;
    fn extract_mut<T: ExtractOwned>(
        self: Pin<&mut Self>,
    ) -> ExtractStreamMut<'_, T>;
}

Expand description

Extension trait for extracting from a RowStream.

Required Methods§

Source

fn extract<T: ExtractOwned>(self) -> ExtractStream<T>

Turns the RowStream into a Stream over T.

§Examples

#[derive(Columns, Extract)]
struct User {
    id: i32,
    name: String,
}

async fn extract_users(i: RowStream) -> Result<Vec<User>, Error> {
    i.extract().try_collect().await
}

Source

fn extract_mut<T: ExtractOwned>(self: Pin<&mut Self>) -> ExtractStreamMut<'_, T>

§Examples

#[derive(Columns, Extract)]
struct User {
    id: i32,
    name: String,
}

async fn extract_users(i: Pin<&mut RowStream>) -> Result<Vec<User>, Error> {
    i.extract_mut().try_collect().await
}