belongsTo('App\User', 'user_id', 'id'); } /* ========== | Helpers * ==========*/ public function getDuration() { $result = "-"; if (!empty($this->session_end_at)) { $timestamp1 = Carbon::createFromTimestamp($this->session_start_at); $timestamp2 = Carbon::createFromTimestamp($this->session_end_at); $duration = $timestamp1->diff($timestamp2); $hours = $duration->h; // Hours $minutes = $duration->i; // Minutes $sec = $duration->s; // Second $result = ""; if ($hours > 0) { $result .= $hours . ' Hr'; } if ($minutes > 0) { $result .= ($result ? ', ' : '') . $minutes . ' Min'; } if ($hours <= 0 and $minutes <= 0 and $sec > 0) { $result .= $sec . ' Second'; } } return $result; } }