belongsTo('App\Models\Webinar', 'webinar_id', 'id'); } public function bundle() { return $this->belongsTo('App\Models\Bundle', 'bundle_id', 'id'); } public function product() { return $this->belongsTo('App\Models\Product', 'product_id', 'id'); } public function subscribe() { return $this->belongsTo('App\Models\Subscribe', 'subscribe_id', 'id'); } public function registrationPackage() { return $this->belongsTo('App\Models\RegistrationPackage', 'registration_package_id', 'id'); } public function getRemainingTimes() { $current_time = time(); $date = $this->to_date; $difference = $date - $current_time; return time2string($difference); } }