torrent api + swip constants

app/Models/Message.php

@@ -9,4 +9,19 @@ class Message extends NexusModel
     protected $fillable = [
         'sender', 'receiver', 'added', 'subject', 'msg', 'unread', 'location', 'saved'
     ];
+
+    protected $casts = [
+        'added' => 'datetime',
+    ];
+
+    public function send_user()
+    {
+        return $this->belongsTo(User::class, 'sender')->withDefault(['id' => 0, 'username' => 'System']);
+    }
+
+    public function receive_user()
+    {
+        return $this->belongsTo(User::class, 'receiver');
+    }
+
 }