orm support use any numeric type set QuerySeter.Limit value

orm/utils.go

@@ -2,6 +2,7 @@ package orm
 
 import (
 	"fmt"
+	"reflect"
 	"strconv"
 	"strings"
 	"time"
@@ -133,6 +134,19 @@ func ToStr(value interface{}, args ...int) (s string) {
 	return s
 }
 
+func ToInt64(value interface{}) (d int64) {
+	val := reflect.ValueOf(value)
+	switch value.(type) {
+	case int, int8, int16, int32, int64:
+		d = val.Int()
+	case uint, uint8, uint16, uint32, uint64:
+		d = int64(val.Uint())
+	default:
+		panic(fmt.Errorf("ToInt64 need numeric not `%T`", value))
+	}
+	return
+}
+
 func snakeString(s string) string {
 	data := make([]byte, 0, len(s)*2)
 	j := false