From 80c969edf8885664b17695d2c42787214a82cc36 Mon Sep 17 00:00:00 2001
From: Eleazar Resendez <eleazar.resendez@processmaker.com>
Date: Mon, 31 Jul 2023 11:54:44 -0600
Subject: [PATCH] Fix issue when pm-blocks-package is not installed

---
 ProcessMaker/Policies/ProcessPolicy.php | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/ProcessMaker/Policies/ProcessPolicy.php b/ProcessMaker/Policies/ProcessPolicy.php
index e3cfa10e13..953bc6c756 100644
--- a/ProcessMaker/Policies/ProcessPolicy.php
+++ b/ProcessMaker/Policies/ProcessPolicy.php
@@ -3,7 +3,6 @@
 namespace ProcessMaker\Policies;
 
 use Illuminate\Auth\Access\HandlesAuthorization;
-use Illuminate\Http\Request;
 use ProcessMaker\Models\AnonymousUser;
 use ProcessMaker\Models\Group;
 use ProcessMaker\Models\GroupMember;
@@ -30,7 +29,7 @@ public function before(User $user)
 
     public function edit(User $user, Process $process)
     {
-        if ($process->pmBlock?->is_imported_locked) {
+        if ($this->isPmBlockImportedLocked($process)) {
             return false;
         }
 
@@ -131,4 +130,15 @@ public function editData(User $user, Process $process)
 
         return false;
     }
+
+    /**
+     * Check if the PM Block package is installed and if so,
+     * it checks if the related pmBlock of the given Process is imported and locked.
+     */
+    private function isPmBlockImportedLocked(Process $process): bool
+    {
+        $className = 'ProcessMaker\Package\PackagePmBlocks\Models\PmBlock';
+
+        return class_exists($className) && $process->pmBlock?->is_imported_locked;
+    }
 }