I think that would be a very valuable configuration - similar to how we can
set certain tags to be self-closing (br, hr, etc) it would also be a great
feature to be able to set certain tags to simply not output if they are
empty (li in this case).
Alex

On Fri, Oct 2, 2009 at 9:19 AM, Widi Harsojo <[email protected]> wrote:

>
> in my own library "w2tags", I create a wrap(I call it a hot tag
> "-user_path"), and it will expand on erb
>
> inside file 'include.w2erb'
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> !H! _user_path
>  -if permitted_to? :manage, :users
>   %li= link_to "Users", users_path
>
> source 'index.w2erb'
> ~~~~~~~~~~~~~~~~~~~~
> !inc!include.w2erb
>
> -user_path
>
> How about principle "DRY-UP the view"
>
> inside file 'include.w2erb'
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> !H!_each2
>  - $0.each_with_index do |$0|
>  -end
>
> !H! _td
>  -each2 @rec;r,i
>   %tr.pop-up-show{pop="#grid-pop-edit" class="d r<%=i+1%>"}
>     ~^%td $0
>     ^.c1.c;.c2;.c3;.c4;.c5;.c6;.c7;.c8;.c9;.c10= $*
>
> source 'index.w2erb'
> ~~~~~~~~~~~~~~~~~~~~
> !inc!include.w2erb
>
> %table
>  -td i+1 ; r[:cus_code] ; r[:cus_name] ; r[:cus_type]
> #page.h{page=<%= @page%>}
>
> OR you can code like this
>
> %table
>  -td i+1;\
>  r[:cus_code];\
>  r[:cus_name];\
>  r[:cus_type]
> #page.h{page=<%= @page%>}
>
> OR...
>
> %table
>  - @rec.each_with_index do |$0|
>   %tr.pop-up-show{pop="#grid-pop-edit" class="d r<%=i+1%>"}
>     %td.c1.c= i+1
>     %td.c2= r[:cus_code]
>     %td.c3= r[:cus_name]
>     %td.c4= r[:cus_type]
>  - end
> #page.h{page=<%= @page%>}
>
> if you refresh your browser it will parse and generate 'index.erb'
>
> result 'index.erb'
> ~~~~~~~~~~~~~~~~~~
> <table>
>  <% @rec.each_index do |r,i| %>
>   <tr class="pop-up-show" pop="#grid-pop-edit" class="d r<%=i+1%>">
>     <td class="c1 c"><%= i+1 %></td>
>     <td class="c2"><%= r[:cus_code] %></td>
>     <td class="c3"><%= r[:cus_name] %></td>
>     <td class="c4"><%= r[:cus_type] %></td>
>   </tr>
>  <% end %>
> </table>
> <div id="page" class="h" page=<%= @page%>>
>
>
> On Fri, Oct 2, 2009 at 4:02 AM, Dr Nic Williams <[email protected]>
> wrote:
> > Sounds valid, and interesting to me.
> > On Fri, Oct 2, 2009 at 7:58 PM, [email protected] <[email protected]>
> wrote:
> >>
> >> Hi!
> >>
> >> I have been using haml almost years now :-)
> >>
> >> Now I have got one small idea, just need your opinion if this does not
> >> go against some fundamental haml way. If not then I would dig deeper
> >> and write some patch or smth.
> >>
> >> Currently:
> >>
> >> %li= nil
> >>
> >> It will return empty element <li></li> however I would prefer if it
> >> does not return anything at all. Why?
> >>
> >> Cos I'm using declarative authorization gem and often write code like:
> >>
> >> %li= link_to "Users", users_path if permitted_to? :manage, :users
> >>
> >> However sometimes I have css style for li elements and empty element
> >> got style as well. So at the moment I have to write code what is not
> >> so nice and one liner any more:
> >>
> >> - if permitted_to? :manage, :users
> >>  %li= link_to "Users", users_path
> >>
> >> I have quite many permitted_to? methods in my views, so that's why I
> >> thought I need some global option for Nil not to return any output.
> >>
> >> What do you think?
> >>
> >> Cheers,
> >> Priit
> >>
> >
> >
> >
> > --
> > Dr Nic Williams
> > iPhone and Rails consultants - http://mocra.com
> > Fun with iPhone/Ruby/Rails/Javascript - http://drnicwilliams.com
> > * Surf Report for iPhone - http://mocra.com/projects/surfreport/ *
> >
>
>
> --
> /wh
>
> e=mc2inhologram
>
> >
>

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