[9.x] Granular notifications queue connections

src/Illuminate/Notifications/NotificationSender.php

@@ -199,6 +199,12 @@ protected function queueNotification($notifiables, $notification)
                     $notification->locale = $this->locale;
                 }
 
+                $connection = $notification->connection;
+
+                if (method_exists($notification, 'viaConnections')) {
+                    $connection = $notification->viaConnections()[$channel] ?? null;
+                }
+
                 $queue = $notification->queue;
 
                 if (method_exists($notification, 'viaQueues')) {
@@ -222,7 +228,7 @@ protected function queueNotification($notifiables, $notification)
 
                 $this->bus->dispatch(
                     (new SendQueuedNotifications($notifiable, $notification, [$channel]))
-                            ->onConnection($notification->connection)
+                            ->onConnection($connection)
                             ->onQueue($queue)
                             ->delay(is_array($delay) ? ($delay[$channel] ?? null) : $delay)
                             ->through($middleware)

tests/Notifications/NotificationSenderTest.php

@@ -104,6 +104,29 @@ public function testItCanSendQueuedMultiChannelNotificationsThroughDifferentMidd
 
         $sender->send($notifiable, new DummyMultiChannelNotificationWithConditionalMiddlware);
     }
+
+    public function testItCanSendQueuedWithViaConnectionsNotifications()
+    {
+        $notifiable = new AnonymousNotifiable;
+        $manager = m::mock(ChannelManager::class);
+        $bus = m::mock(BusDispatcher::class);
+        $bus->shouldReceive('dispatch')
+            ->once()
+            ->withArgs(function ($job) {
+                return $job->connection === 'sync' && $job->channels === ['database'];
+            });
+        $bus->shouldReceive('dispatch')
+            ->once()
+            ->withArgs(function ($job) {
+                return $job->connection === null && $job->channels === ['mail'];
+            });
+
+        $events = m::mock(EventDispatcher::class);
+
+        $sender = new NotificationSender($manager, $bus, $events);
+
+        $sender->send($notifiable, new DummyNotificationWithViaConnections);
+    }
 }
 
 class DummyQueuedNotificationWithStringVia extends Notification implements ShouldQueue
@@ -138,7 +161,7 @@ public function via($notifiable)
     }
 }
 
-class DummyNotificationWithDatabaseVia extends Notification
+class DummyNotificationWithDatabaseVia extends Notification implements ShouldQueue
 {
     use Queueable;
 
@@ -154,6 +177,23 @@ public function via($notifiable)
     }
 }
 
+class DummyNotificationWithViaConnections extends Notification implements ShouldQueue
+{
+    use Queueable;
+
+    public function via($notifiable)
+    {
+        return ['mail', 'database'];
+    }
+
+    public function viaConnections()
+    {
+        return [
+            'database' => 'sync',
+        ];
+    }
+}
+
 class DummyNotificationWithMiddleware extends Notification implements ShouldQueue
 {
     use Queueable;