add scan full button

Release-As: 0.16.0

server/ctrladmin/adminui/pages/home.tmpl

@@ -57,7 +57,10 @@
                 <p class="col-span-full text-gray-500" title="{{ .LastScanTime }}">scanned {{ .LastScanTime | dateHuman }}</p>
             {{ end }}
             <form class="col-span-full" action="{{ path "/admin/start_scan_inc_do" }}" method="post">
-                <input type="submit" title="start a incremental scan" value="scan now">
+                <input type="submit" title="start a incremental scan. gonic will only scan files that have changed since the last scan. it is usually quite fast" value="scan (i)">
+            </form>
+            <form class="col-span-full" action="{{ path "/admin/start_scan_full_do" }}" method="post">
+                <input type="submit" title="start a slow scan. gonic will not check the timestamps of changed files. you generally shouldn't need this" value="scan slow (i)">
             </form>
         {{ end }}
         {{ if .IsScanning }}<p class="text-green-500 col-span-full">scan in progress...</p>{{ end }}

server/ctrladmin/handlers.go

@@ -65,8 +65,9 @@ func (c *Controller) ServeHome(r *http.Request) *Response {
 		Order("created_at DESC").
 		Limit(20).
 		Find(&data.RecentFolders)
+
 	data.IsScanning = c.Scanner.IsScanning()
-	if tStr, err := c.DB.GetSetting("last_scan_time"); err != nil {
+	if tStr, _ := c.DB.GetSetting("last_scan_time"); tStr != "" {
 		i, _ := strconv.ParseInt(tStr, 10, 64)
 		data.LastScanTime = time.Unix(i, 0)
 	}