[11.x] Allow readAt method to use in database channel (#54729)

* Allow default readed notification * Update DatabaseChannel.php * Update NotificationDatabaseChannelTest.php --------- Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: utsavsomaiya

src/Illuminate/Notifications/Channels/DatabaseChannel.php

@@ -36,7 +36,9 @@ protected function buildPayload($notifiable, Notification $notification)
  ? $notification->databaseType($notifiable)
  : get_class($notification),
  'data' => $this->getData($notifiable, $notification),
- 'read_at' => null,
+ 'read_at' => method_exists($notification, 'initialDatabaseReadAtValue')
+ ? $notification->initialDatabaseReadAtValue($notifiable)
+ : null,
  ];
  }
 

tests/Notifications/NotificationDatabaseChannelTest.php

@@ -2,6 +2,7 @@
 
 namespace Illuminate\Tests\Notifications;
 
+use Carbon\Carbon;
 use Illuminate\Notifications\Channels\DatabaseChannel;
 use Illuminate\Notifications\Messages\DatabaseMessage;
 use Illuminate\Notifications\Notification;
@@ -60,7 +61,7 @@ public function testCustomizeTypeIsSentToDatabase()
  'id' => 1,
  'type' => 'MONTHLY',
  'data' => ['invoice_id' => 1],
- 'read_at' => null,
+ 'read_at' => Carbon::now()->toDateTimeString(),
  'something' => 'else',
  ]);
 
@@ -88,6 +89,11 @@ public function databaseType()
  {
  return 'MONTHLY';
  }
+
+ public function initialDatabaseReadAtValue()
+ {
+ return Carbon::now();
+ }
 }
 
 class ExtendedDatabaseChannel extends DatabaseChannel