Function orderByAgg

dialect/sql/sql.go:373–393

orderByAgg returns an ordering by the aggregation of the given field.

(fn, field string, opts ...OrderTermOption)

// orderByAgg returns an ordering by the aggregation of the given field.
func orderByAgg(fn, field string, opts ...OrderTermOption) *OrderExprTerm {
	return &OrderExprTerm{
		OrderTermOptions: *NewOrderTermOptions(
			append(
				// Default alias is "<func>_<field>".
				[]OrderTermOption{OrderAs(fmt.Sprintf("%s_%s", strings.ToLower(fn), field))},
				opts...,
			)...,
		),
		Expr: func(s *Selector) Querier {
			var c string
			switch {
			case field == "*", isFunc(field):
				c = field
			default:
				c = s.C(field)
			}
			return Raw(fmt.Sprintf("%s(%s)", fn, c))
		},
	}
}

// OrderByRand returns a term to natively order by a random value.
func OrderByRand() func(*Selector) {