Method query_row

src/sql.rs:423–439

Execute a query which is expected to return one row.

(
        &self,
        query: &str,
        params: impl rusqlite::Params + Send,
        f: F,
    )

    /// Execute a query which is expected to return one row.
    pub async fn query_row<T, F>(
        &self,
        query: &str,
        params: impl rusqlite::Params + Send,
        f: F,
    ) -> Result<T>
    where
        F: FnOnce(&rusqlite::Row) -> rusqlite::Result<T> + Send,
        T: Send + 'static,
    {
        let query_only = true;
        self.call(query_only, move |conn| {
            let res = conn.query_row(query, params, f)?;
            Ok(res)
        })
        .await
    }

    /// Execute the function inside a transaction assuming that it does writes.
    ///