From cdf435af1cc1fea20079059312870533b1fbdecd Mon Sep 17 00:00:00 2001
From: Samuel Georges <sam@daftspunk.com>
Date: Sun, 18 Feb 2024 13:59:09 +1100
Subject: [PATCH] Propagate multisite deletes

---
 src/Database/Traits/Multisite.php | 44 +++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/src/Database/Traits/Multisite.php b/src/Database/Traits/Multisite.php
index 3aa37cf3f..815702078 100644
--- a/src/Database/Traits/Multisite.php
+++ b/src/Database/Traits/Multisite.php
@@ -58,6 +58,8 @@ public function initializeMultisite()
 
         $this->bindEvent('model.saveComplete', [$this, 'multisiteSaveComplete']);
 
+        $this->bindEvent('model.afterDelete', [$this, 'multisiteAfterDelete']);
+
         $this->defineMultisiteRelations();
     }
 
@@ -123,6 +125,24 @@ public function multisiteAfterCreate()
         ;
     }
 
+    /**
+     * multisiteAfterDelete
+     */
+    public function multisiteAfterDelete()
+    {
+        if (!$this->isMultisiteSyncEnabled() || !$this->getMultisiteConfig('delete', true)) {
+            return;
+        }
+
+        Site::withGlobalContext(function() {
+            foreach ($this->getMultisiteSyncSites() as $siteId) {
+                if (!$this->isModelUsingSameSite($siteId)) {
+                    $this->deleteForSite($siteId);
+                }
+            }
+        });
+    }
+
     /**
      * defineMultisiteRelations will spin over every relation and apply propagation config
      */
@@ -376,6 +396,30 @@ protected function findOtherSiteModel($siteId = null)
         return $otherModel;
     }
 
+    /**
+     * deleteForSite runs the delete command on a model for another site, useful for cleaning
+     * up records for other sites when the parent is deleted.
+     */
+    public function deleteForSite($siteId = null)
+    {
+        $otherModel = $this->findForSite($siteId);
+        if (!$otherModel) {
+            return;
+        }
+
+        $useSoftDeletes = $this->isClassInstanceOf(\October\Contracts\Database\SoftDeleteInterface::class);
+        if ($useSoftDeletes && !$this->isSoftDelete()) {
+            static::withoutEvents(function() use ($otherModel) {
+                $otherModel->forceDelete();
+            });
+            return;
+        }
+
+        static::withoutEvents(function() use ($otherModel) {
+            $otherModel->delete();
+        });
+    }
+
     /**
      * isModelUsingSameSite
      */