From 13370f3f3b5ea6cf0419a400daca9e1c09b737db Mon Sep 17 00:00:00 2001
From: zhouxin <zhouxin@easycorp.ltd>
Date: Mon, 23 Oct 2023 11:15:21 +0800
Subject: [PATCH] * Fix assignment of empty value to 'realBegan' field by
 assigning NULL instead.

---
 module/programplan/model.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/module/programplan/model.php b/module/programplan/model.php
index 740b4d7c19..278782dc62 100755
--- a/module/programplan/model.php
+++ b/module/programplan/model.php
@@ -551,10 +551,10 @@ class programplanModel extends model
             if($setCode)    $plan->code    = $codes[$key];
             if($setPercent) $plan->percent = $percents[$key];
 
-            $plan->begin     = empty($begin[$key])     ? '' : $begin[$key];
-            $plan->end       = empty($end[$key])       ? '' : $end[$key];
-            $plan->realBegan = empty($realBegan[$key]) ? '' : $realBegan[$key];
-            $plan->realEnd   = empty($realEnd[$key])   ? '' : $realEnd[$key];
+            $plan->begin     = empty($begin[$key])     ? null : $begin[$key];
+            $plan->end       = empty($end[$key])       ? null : $end[$key];
+            $plan->realBegan = empty($realBegan[$key]) ? null : $realBegan[$key];
+            $plan->realEnd   = empty($realEnd[$key])   ? null : $realEnd[$key];
 
             $plans[] = $plan;
         }