add dateString function

src/server/server.go

@@ -138,6 +138,19 @@ func (s *Server) RegisterViews() {
 			}
 			return humanize.Time(tm)
 		},
+		"dateString": func(t string) string {
+			if t == "" {
+				return "Unknown"
+			}
+
+			layout := "2006-01-02 15:04:05.000Z"
+
+			tm, err := time.Parse(layout, t)
+			if err != nil {
+				return t
+			}
+			return tm.Format("2006-01-02")
+		},
 		"isNew": func(t string) bool {
 			if t == "" {
 				return false