Question

I click on the checkbox and I should come about all checkboxes on row, checked or not (3 checkbox).

When I click on the checkbox update_order_status(this);

function update_order_status(e){
    var order_id = $(e).parents('tr').find('.order_id').html();
    var status_id = $(e).parents('tr').find('.status_id').val();

    $(e).parents('tr').find('input').each(function(i){
        //watch all input on the page, but not row
    });
}

Answer 1

Use the closest method. inside your checkbox method

function yourMethod(e){
  $(e).closest("tr").find(':checkbox').each(function(e2){
    // code
  });
}

The closest method selects the most closest dom element up the tree and stops when finding it, So it will select only the parent tr.