TBLFM added to updated table as result of a emacs-lisp src block

[Miguel Ruiz <rbenit68@inbox.com>]

Hi,

I'm trying to make the following (modified) code works:
(https://eschulte.github.io/org-scraps/scraps/2011-08-19-updating-a-table.html)

#+name: OneTable
| 0 | 0 | 0 |
| 0 | 0 | 0 |
| 0 | 0 | 0 |

#+name: AnotherTable
#+begin_src emacs-lisp :var table=OneTable
  (setf (nth 1 table) '(2 2 2))
  (setq table (cons 'hline table))  
  (setq table (append table '(hline)))
  (setq table (append table '(("Total"))))
  (setq table (append table '(("\n#+TBLFM: @>$>=vsum(@I$>..@>>$>)::@>$>>=vsum(@I$>>..@>>$>>)::"))))
  table
#+end_src

At this point, it's ok for me but I need to put :: at the end to make it calculates sums because the | remaining. 
I'm aware I'm appending TBLFM to the table in a not orthodox way.

Is there a canonical way I could proceed in?

TIA

Miguel Ruiz.

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