Not getting condiotions if statement and else statement

$tickets  = Ticket::select("tickets.cust_id","tickets.ticket_id","tickets.category_id","tickets.subject","tickets.priority","tickets.message","tickets.status","tickets.createdticket","tickets.last_reply","tickets.closing_ticket","tickets.auto_close_ticket","tickets.created_at","tickets.updated_at","groups_categories.group_id","groups_users.users_id")
   ->leftJoin('groups_categories','groups_categories.category_id','tickets.category_id')
   ->leftJoin('groups_users','groups_users.groups_id','groups_categories.group_id')
   ->get();

Above code is my query. I want the show the ticket according the login users

via Chebli Mohamed