From 3a79ff0855799820477803db6a51f628bcc53c60 Mon Sep 17 00:00:00 2001
From: Phodal Huang <h@phodal.com>
Date: Fri, 12 Feb 2021 23:15:30 +0800
Subject: [PATCH] fix: fix data empty issue

---
 web/public/js/graph/git/tags-timeline.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/web/public/js/graph/git/tags-timeline.js b/web/public/js/graph/git/tags-timeline.js
index c5215835..04c6f6cb 100644
--- a/web/public/js/graph/git/tags-timeline.js
+++ b/web/public/js/graph/git/tags-timeline.js
@@ -65,7 +65,13 @@ function renderTagsTimeline(data) {
       .attr("transform", "translate(0," + height + ")")
       .call(d3.axisBottom(x));
 
-    let first_year = new Date(selectData[0].date).getFullYear();
+    let first_year;
+    if (selectData.length > 0) {
+      first_year = new Date(selectData[0].date).getFullYear();
+    } else {
+      first_year = new Date().getFullYear();
+    }
+
     let startDate = new Date(first_year, 0, 1);
     let y = d3.scaleTime()
       .domain([startDate, Date.now()])