ohhhh so that's why. Thanks! you've been a great help!

On Aug 10, 3:04 am, Jeroen van Dijk <[email protected]>
wrote:
> On Mon, Aug 9, 2010 at 7:22 PM, Eumir <[email protected]> wrote:
> > Okay just a little wee bit of curiosity. I was doing
>
> > code like this for the partial:
>
> > - fields_for "booking[booking_passenger][]", my_passenger do |
> > passenger|
> >  %li
> >    %fieldset.passenger-info
> >      %ul
> >        %li
> >          = passenger.label :first_name
> >          = passenger.text_field :first_name
>
> > and I keep seeing the javascript call:
>
> > $('.passenger-info ul').append('#{ escape_javascript( render :partial
> > => "new_passenger", :locals => {:booking => @booking }) }');
>
> > as this when i view source:
>
> > $('.passenger-info ul').append('');
>
> > so i scratch my head and try out a gazillion things and finally try to
> > do something stupid:
>
> > = fields_for "booking[booking_passenger][]", my_passenger do |
> > passenger|
>
> > and it suddenly worked. WHY? I mean we don't print out fields_for
> > right? its always written as <% fieldes_for %> in erb? so why the diff
> > in HAML?
>
> This is not a change in Haml, this is a change in Rails. Since Rails3 block
> helpers that add content to the block that is yielded need <%= in erb and =
> in Haml. Maybe this is a good source for you to 
> watch:http://railscasts.com/episodes/208-erb-blocks-in-rails-3
>
>
>
> > On Aug 9, 11:00 pm, Eumir <[email protected]> wrote:
> > > Hi Jeroen,
>
> > > It works now thanks! However, I don't know if it's haml or just my
> > > server crashing when I add a @booking.passengers.build to the partial.
> > > There's even no error message of sort, I just have to kill -9 when I
> > > refresh the page
>
> > > On Aug 7, 4:49 pm, Jeroen van Dijk <[email protected]> wrote:
>
> > > > Hope you found an solution already, but what I see it that you are
> > including
> > > > erb tags in the javascript code. Change <%= %> to #{ } and I guess you
> > > > should be able to get it working:
>
> > > > :javascript
> > > >  $('#number_of_passengers').change(function() {
> > > >     var $num_of_passengers = $(this).val();
> > > >     for($i=0; $i<$num_of_passengers;$i++) {
> > > >       $('.passenger-info ul').append('#{
> > > > escape_javascript( render :partial => "new_passenger", :locals
> > > > {:booking => @booking }) }');
> > > >     }
> > > >  })
>
> > > > HTH
>
> > > > On Thu, Aug 5, 2010 at 5:38 PM, Eumir <[email protected]>
> > wrote:
> > > > > Hi guys,
>
> > > > > The functionality I plan on doing is to insert some form elements
> > > > > depending on a number chosen from a select tag.
>
> > > > > I have a select tag called for number_of_passengers, and i plan to
> > > > > dynamically append new passenger fields for the number chosen. Say I
> > > > > select 2 from number_of_passengers, then 2 forms should appear in a
> > > > > fieldset. these forms contain name, age weight etc.
>
> > > > > I tried following this:
>
> >http://stackoverflow.com/questions/261752/call-a-rails-function-from-...
>
> > > > > and just converted it to haml-speak but I get errors whenever I use
> > > > > the :javascript tag. Also I don't think I can "escape" the javascript
> > > > > tag once I am in it
>
> > > > > :javascript
> > > > >  $('#number_of_passengers').change(function() {
> > > > >     var $num_of_passengers = $(this).val();
> > > > >     for($i=0; $i<$num_of_passengers;$i++) {
> > > > >       $('.passenger-info ul').append('<%=
> > > > > escape_javascript( render :partial => "new_passenger", :locals
> > > > > {:booking => @booking }) %>');
> > > > >     }
> > > > >  })
>
> > > > > also since I am in a form_for, how do I pass the @booking variable to
> > > > > the local? It seems really complicated and I'm planning of doing the
> > > > > dirty way out of just looping 20 times(20 max passengers) then just
> > > > > hide/show them depending on the selected number. But that's too dirty
> > > > > don't you think?
>
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