scyllax 0.2.1

A SQLx and Discord inspired query system for Scylla
Documentation 
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//! Macros for matching rows from a [`scylla::QueryResult`]
#[macro_export]
/// Take a QueryResult and return a `Result<Option<T>>`
/// Example:
/// ```rust,ignore
/// match_row!(res, OrgEntity)
/// ```
macro_rules! match_row {
    ($res:ident, $type:ty) => {
        match $res.single_row_typed::<$type>() {
            Ok(data) => Ok(Some(data)),
            Err(err) => {
                use scylla::transport::query_result::SingleRowTypedError;
                match err {
                    // tried to parse into type, but there are no rows
                    SingleRowTypedError::BadNumberOfRows(_) => Ok(None),
                    _ => {
                        tracing::error!("err: {:?}", err);
                        Err(scyllax::error::ScyllaxError::SingleRowTyped(err))
                    }
                }
            }
        }
    };
}

#[macro_export]
/// Take a QueryResult and return a `Result<Vec<T>>`
/// Example:
/// ```rust,ignore
/// match_rows!(res, OrgEntity)
/// ```
macro_rules! match_rows {
    ($res:ident, $type:ty) => {
        match $res.rows() {
            Ok(data) => {
                use scylla::IntoTypedRows;

                let mut rows: Vec<$type> = Vec::with_capacity(data.len());
                for (index, row) in data.into_typed::<$type>().enumerate() {
                    match row {
                        Ok(row) => rows.push(row),
                        Err(e) => {
                            tracing::error!(
                                "failed to parse row {}: {}. will be excluded from result.",
                                index,
                                e
                            );
                        }
                    }
                }

                Ok(rows)
            }
            Err(e) => unreachable!("infallible, only used on read queries."),
        }
    };
}