datasources 0.1.5

Async datasource interfaces, middleware, registry, and test doubles
Documentation 
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#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum SortDirection {
    Asc,
    Desc,
}

#[derive(Clone, Debug, PartialEq, Eq)]
pub struct OrderBy {
    pub column: String,
    pub direction: SortDirection,
}

impl OrderBy {
    pub fn asc(column: impl Into<String>) -> Self {
        Self {
            column: column.into(),
            direction: SortDirection::Asc,
        }
    }

    pub fn desc(column: impl Into<String>) -> Self {
        Self {
            column: column.into(),
            direction: SortDirection::Desc,
        }
    }
}

impl std::fmt::Display for OrderBy {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let direction = match self.direction {
            SortDirection::Asc => "ASC",
            SortDirection::Desc => "DESC",
        };
        write!(f, "{} {direction}", self.column)
    }
}