On Sep 3, 8:13 pm, nroose <[email protected]> wrote:
> Good morning!
>
> I am trying to find full documentation about the way to embed ruby
> commands in the rails views.
>
> I am working on a large existing app. We just installed Ruby 1.8.7 on
> one of our servers in an attempt to get cruisecontrol.rb working with
> metrics_fu.
>
> It seems that this version of ruby does not like comments in the
> embedded ruby in the rails views.
>
> So I am looking through the app, and there are various things in our
> views, such as:
>
> <%= <expression> # comment about <expression> %>
> <%# comment about stuff around this line %>
> <%= # commented out code %>
> <% end # comment about what it is ending %>
>
erb in ruby 1.8.7 slightly changed behaviour of what had been
previously undefined behaviour (ie it just happened to work before but
never documented as such), namely
<%# is ok
but <% bla bla #
and variants thereof aren't
> And the new ruby does not seem to like any of these. It seems as
> though the %> gets commented out as well.
>
> There is also one other thing I could not find documentation for:
>
> <%- <some ruby code> -%>
>
> Notice the dashes! Do they do anything? Or is it just that you can
> put dashes and it won't really affect anything (besides perhaps the
> return value.
it suppresses (usually) spurious blank lines.
Fred
>
> Thanks!
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