support 1w, 1d for loop

server/ajax/form/form.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"io/ioutil"
 	"net/http"
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
@@ -61,8 +62,34 @@ func ToStrArr(k string) []string {
 }
 
 func ToDuration(s string) time.Duration {
-	d, _ := time.ParseDuration(s)
-	return d
+	var d time.Duration
+	for _, c := range []struct {
+		key string
+		d   time.Duration
+	}{
+		{"d", time.Hour * 24},
+		{"w", time.Hour * 24 * 7},
+	} {
+		daysPattern := regexp.MustCompile(`(^|[a-z])[0-9]+` + c.key + `($|[0-9])`)
+		idxes := daysPattern.FindAllStringIndex(s, -1)
+		if len(idxes) > 1 {
+			return 0
+		}
+		for _, idx := range idxes {
+			substr := s[idx[0]:idx[1]]
+			for len(substr) > 0 && (substr[0] < '0' || substr[0] > '9') {
+				substr = substr[1:]
+			}
+			for len(substr) > 0 && (substr[len(substr)-1] >= '0' && substr[len(substr)-1] <= '9') {
+				substr = substr[:len(substr)-1]
+			}
+			substr = strings.TrimSuffix(substr, c.key)
+			n, _ := strconv.Atoi(substr)
+			d += c.d * time.Duration(n)
+		}
+	}
+	d2, _ := time.ParseDuration(s)
+	return d2 + d
 }
 
 func ToTime(s string) time.Time {