Rails - Feb 2007 - problem with local variable in partial template

I am quite new at Ruby and Rails and this is stumping me:

I have in my rhtml file:

<ul>
<%= render(:partial => "owner", :collection =>
@business.owners, :locals => { :that_value=> @params[:that_value] } )
%>
</ul>


then in my partial:

<% if owner.id == that_value %>
  <li><%= owner.name  %> <%= owner.id %> <%=
that_value%> </li>
<% else %>
  <li><%= owner.name  %> <%= owner.id %> </li>
<% end %>
<%= owner.id == that_value%>
<%=owner.id%>  <%=that_value%>


owner.id == that_value  evaluates to false every time, even when they
are really the same.

Sample output:

Owner Number1   1
False
1  2
Owner Number2   2
False
2  2
Owner Number3   3
False
3  2


I am an old C guy and I keep thinking that there must be some typing
error, like one of the "2" is a string and the other is an int, but I
thought ruby has no types.  I am pretty stumped, hopefully someone can
help.


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And if I change <% if owner.id == that_value %>  to <% if owner.id
<>
that_value %>  it fails.

On Feb 21, 11:57 pm,
"harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I am quite new at Ruby and Rails and this is stumping me:
>
> I have in my rhtml file:
>
> <ul>
> <%= render(:partial=> "owner", :collection =>
> @business.owners, :locals => { :that_value=> @params[:that_value] } )
> %>
> </ul>
>
> then in mypartial:
>
> <% if owner.id == that_value %>
>   <li><%= owner.name  %> <%= owner.id %> <%=
that_value%> </li>
> <% else %>
>   <li><%= owner.name  %> <%= owner.id %> </li>
> <% end %>
> <%= owner.id == that_value%>
> <%=owner.id%>  <%=that_value%>
>
> owner.id == that_value  evaluates to false every time, even when they
> are really the same.
>
> Sample output:
>
> Owner Number1   1
> False
> 1  2
> Owner Number2   2
> False
> 2  2
> Owner Number3   3
> False
> 3  2
>
> I am an old C guy and I keep thinking that there must be some typing
> error, like one of the "2" is a string and the other is an int,
but I
> thought ruby has no types.  I am pretty stumped, hopefully someone can
> help.

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It''s really confusing because they both print out as being the same
(in this case 2) but they don''t compare to be equal with each other...

On Feb 22, 8:34 am,
"harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> And if I change <% if owner.id == that_value %>  to <% if owner.id
<>
> that_value %>  it fails.
>
> On Feb 21, 11:57 pm,
"harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
>
> > I am quite new at Ruby and Rails and this is stumping me:
>
> > I have in my rhtml file:
>
> > <ul>
> > <%= render(:partial=> "owner", :collection =>
> > @business.owners, :locals => { :that_value=>
@params[:that_value] } )
> > %>
> > </ul>
>
> > then in mypartial:
>
> > <% if owner.id == that_value %>
> >   <li><%= owner.name  %> <%= owner.id %> <%=
that_value%> </li>
> > <% else %>
> >   <li><%= owner.name  %> <%= owner.id %> </li>
> > <% end %>
> > <%= owner.id == that_value%>
> > <%=owner.id%>  <%=that_value%>
>
> > owner.id == that_value  evaluates to false every time, even when they
> > are really the same.
>
> > Sample output:
>
> > Owner Number1   1
> > False
> > 1  2
> > Owner Number2   2
> > False
> > 2  2
> > Owner Number3   3
> > False
> > 3  2
>
> > I am an old C guy and I keep thinking that there must be some typing
> > error, like one of the "2" is a string and the other is an
int, but I
> > thought ruby has no types.  I am pretty stumped, hopefully someone can
> > help.

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harper.sean-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
wrote:
> It''s really confusing because they both print out as being the
same
> (in this case 2) but they don''t compare to be equal with each
other...
> 
> On Feb 22, 8:34 am,
"harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<harper.s...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Your most likely comparing a string to an integer

  1 == "1"   #=> false

All params come in as strings.  If you want it to be treated as an 
integer, you can convert it easily.

  1 == "1".to_i   #=> true

So in your locals hash you can do:

  :locals => {:that_value => params[:that_value].to_i}

-- 
Posted via http://www.ruby-forum.com/.

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