Add a template function about date 补充一个日期相关的模板函数 (#9815)

* Update time.go

添加一个与日期相关的模板函数，有「星期天」了

* Update template.go

添加一个日期相关的模板函数

kernel/model/template.go

@@ -49,6 +49,7 @@ func RenderGoTemplate(templateContent string) (ret string, err error) {
 	tmpl = tmpl.Funcs(template.FuncMap{
 		"Weekday":   util.Weekday,
 		"WeekdayCN": util.WeekdayCN,
+		"WeekdayCN2": util.WeekdayCN2,
 		"ISOWeek":   util.ISOWeek,
 	})
 	tpl, err := tmpl.Parse(templateContent)
@@ -249,6 +250,7 @@ func renderTemplate(p, id string, preview bool) (string, error) {
 	}
 	funcMap["Weekday"] = util.Weekday
 	funcMap["WeekdayCN"] = util.WeekdayCN
+	funcMap["WeekdayCN2"] = util.WeekdayCN2
 	funcMap["ISOWeek"] = util.ISOWeek
 
 	goTpl := template.New("").Delims(".action{", "}")

kernel/util/time.go

@@ -40,6 +40,14 @@ func WeekdayCN(date time.Time) string {
 	return weekdayCN[week]
 }
 
+// WeekdayCN2 returns the day of the week specified by date.
+// Sunday=天, Monday=一, ..., Saturday=六.
+func WeekdayCN2(date time.Time) string {
+	week := Weekday(date)
+	weekdayCN2 := []string{"天", "一", "二", "三", "四", "五", "六"}
+	return weekdayCN2[week]
+}
+
 // ISOWeek returns the ISO 8601 year and week number in which date occurs.
 // Week ranges from 1 to 53. Jan 01 to Jan 03 of year n might belong to week 52 or 53 of year n-1,
 // and Dec 29 to Dec 31 might belong to week 1 of year n+1.