Trait SelectQuery 

pub trait SelectQuery<From>
where
    From: Dataset,
{
    // Required methods
    fn get_select(&self) -> impl Iterator<Item = impl Expression> + Clone;
    fn get_from<'s>(&'s self) -> &'s Option<From>;
    fn get_where<'s>(&'s self) -> &'s Option<impl Expression>;
    fn get_group_by(&self) -> impl Iterator<Item = impl Expression> + Clone;
    fn get_having(&self) -> &Option<impl Expression>;
    fn get_order_by(&self) -> impl Iterator<Item = impl Expression> + Clone;
    fn get_limit(&self) -> Option<u32>;
    fn build<D: Driver>(&self, driver: &D) -> DynQuery;
    fn build_into<D: Driver>(&self, driver: &D, out: &mut DynQuery);
}

SELECT query builder.

Use QueryBuilder::new().select(..) to start.

Required Methods

fn get_select(&self) -> impl Iterator<Item = impl Expression> + Clone

Get SELECT expressions.

fn get_from<'s>(&'s self) -> &'s Option<From>

Get FROM clause dataset.

fn get_where<'s>(&'s self) -> &'s Option<impl Expression>

Get WHERE clause expression.

fn get_group_by(&self) -> impl Iterator<Item = impl Expression> + Clone

Get GROUP BY expressions.

fn get_having(&self) -> &Option<impl Expression>

Get HAVING clause expression.

fn get_order_by(&self) -> impl Iterator<Item = impl Expression> + Clone

Get ORDER BY expressions.

fn get_limit(&self) -> Option<u32>

Get LIMIT value.

fn build<D: Driver>(&self, driver: &D) -> DynQuery

Build query.

fn build_into<D: Driver>(&self, driver: &D, out: &mut DynQuery)

Build query into existing buffer.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<S, From, W, G, H, O, L> SelectQuery<From> for SelectQueryBuilder<S, From, W, G, H, O, L>

where S: ExpressionCollection, From: Dataset, W: Expression, G: ExpressionCollection, H: Expression, O: ExpressionCollection,