From 5b1be136ad6829e6fa5a4ba9bfc598f1d5a9509d Mon Sep 17 00:00:00 2001
From: Lukas Halbritter <halbritl@informatik.uni-freiburg.de>
Date: Fri, 5 Oct 2018 17:11:06 +0200
Subject: [PATCH] Added helper method to check, if an array has only
 null-values.

---
 app/Http/helpers.php | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/app/Http/helpers.php b/app/Http/helpers.php
index 8587dbd..6eb734a 100644
--- a/app/Http/helpers.php
+++ b/app/Http/helpers.php
@@ -101,3 +101,21 @@ function endOfMonth($year, $month, $format='d.m.Y') {
     return Carbon\Carbon::createFromDate($year, $month)
                         ->endOfMonth()->format($format);
 }
+
+/**
+ * Check, if all fields of an array are null.
+ * Returns true, if all fields of $array are null. Returns fals,e otherwise
+ *
+ * @param  array   $array
+ * @return boolean
+ */
+function allEmpty($array)
+{
+    foreach ($array as $item) {
+        if ($item !== null) {
+            return false;
+        }
+    }
+
+    return true;
+}