attendance retroactive increment total_days

include/globalfunctions.php

@@ -704,3 +704,22 @@ function isIPV6 ($ip)
 {
     return filter_var($ip,FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
 }
+
+function count_peer($whereStr)
+{
+    if (empty($whereStr)) {
+        throw new \InvalidArgumentException("require whereStr");
+    }
+    if (IN_NEXUS) {
+        $sql = "select count(distinct(peer_id)) as counts from peers where $whereStr";
+        $res = sql_query($sql);
+        $count = mysql_fetch_assoc($res);
+        return $count['counts'];
+    } else {
+        $res = \Illuminate\Support\Facades\DB::table('peers')
+            ->whereRaw($whereStr)
+            ->selectRaw("count(distinct(peer_id)) as counts")
+            ->first();
+        return $res->counts;
+    }
+}