Command, Function using Bar

Dear Vimers,

thanks to the help of Christian Brabandt, there's a function in my .vimrc

to execute any vim-command on all files in the Quickfixlist or the Locationlist.

This is somewhat analogous to :argdo.

So, I should be able to do something like:

vimgrep validate app/models/*

:Qfdo %s/validate/VALIUM/ge | update

Unfortunately, this results in an error, 

that the first changed file has to be saved, 

before switching to the next one:

E37: No write since last change (add ! to overwrite)

I think, that the | update is not executed, is it?

What do I need to change in the following .vimrc's code?

" Define Function Quick-Fix-List-Do:

fun! QFDo(bang, command) 

     let qflist={} 

     if a:bang 

         let tlist=map(getloclist(0), 'get(v:val, ''bufnr'')') 

     else 

         let tlist=map(getqflist(), 'get(v:val, ''bufnr'')') 

     endif 

     if empty(tlist) 

        echomsg "Empty Quickfixlist. Aborting" 

        return 

     endif 

     for nr in tlist 

     let item=fnameescape(bufname(nr)) 

     if !get(qflist, item,0) 

         let qflist[item]=1 

     endif 

     endfor 

     :exe 'argl ' .join(keys(qflist)) 

     :exe 'argdo ' . a:command 

endfunc 

com! -nargs=1 -bang -bar Qfdo :call QFDo(<bang>0,<q-args>) 

Many thanks in advance for your help!

Kind regards!

Asis

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