move dir

client/orm/clauses/order_clause/order.go

@@ -0,0 +1,103 @@
+package order_clause
+
+import (
+	"github.com/astaxie/beego/client/orm/clauses"
+	"strings"
+)
+
+type Sort int8
+
+const (
+	None       Sort = 0
+	Ascending  Sort = 1
+	Descending Sort = 2
+)
+
+type Option func(order *Order)
+
+type Order struct {
+	column string
+	sort   Sort
+	isRaw  bool
+}
+
+func Clause(options ...Option) *Order {
+	o := &Order{}
+	for _, option := range options {
+		option(o)
+	}
+
+	return o
+}
+
+func (o *Order) GetColumn() string {
+	return o.column
+}
+
+func (o *Order) GetSort() Sort {
+	return o.sort
+}
+
+func (o *Order) SortString() string {
+	switch o.GetSort() {
+	case Ascending:
+		return "ASC"
+	case Descending:
+		return "DESC"
+	}
+
+	return ``
+}
+
+func (o *Order) IsRaw() bool {
+	return o.isRaw
+}
+
+func ParseOrder(expressions ...string) []*Order {
+	var orders []*Order
+	for _, expression := range expressions {
+		sort := Ascending
+		column := strings.ReplaceAll(expression, clauses.ExprSep, clauses.ExprDot)
+		if column[0] == '-' {
+			sort = Descending
+			column = column[1:]
+		}
+
+		orders = append(orders, &Order{
+			column: column,
+			sort:   sort,
+		})
+	}
+
+	return orders
+}
+
+func Column(column string) Option {
+	return func(order *Order) {
+		order.column = strings.ReplaceAll(column, clauses.ExprSep, clauses.ExprDot)
+	}
+}
+
+func sort(sort Sort) Option {
+	return func(order *Order) {
+		order.sort = sort
+	}
+}
+
+func SortAscending() Option {
+	return sort(Ascending)
+}
+
+func SortDescending() Option {
+	return sort(Descending)
+}
+
+func SortNone() Option {
+	return sort(None)
+}
+
+func Raw() Option {
+	return func(order *Order) {
+		order.isRaw = true
+	}
+}