Rails - Jan 2005 - Partials inside partials

Assume we have a ActionView template called foo.rhtml which looks like this:

<%=render_collection_of_partials ''bar'', @recs%>

Then we have a file called _bar.rhtml which contains the following:

<%=render_collection_of_partials ''baz'', @more_recs%>

@recs and @more_recs are arrays that are defined by the controller. So
now we have a file called _baz.rhtml which need to do something like:

<%=bar.foo(baz)%>

So what we end up with is each object in @recs has the method "foo"
called on it for each object in @more_recs. So basically I am having a
partial include another partial and the final partial will use variables
passed in from the parent partial. Is there anyway to do this or does
Rails only support a single level of partials? I have verified that the
second level of partials is executed but the "bar" variable does not
appear to be in the scope of that second level.

Eric



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Eric Anderson wrote:
> Is there anyway to do this or does
> Rails only support a single level of partials? I have verified that the
> second level of partials is executed but the "bar" variable does
not
> appear to be in the scope of that second level.
After looking at the partials code it doesn''t appear possible. I was 
thinking perhaps we could use Kernel.local_variables to pass all local 
variables into the partial automatically but figured that would polute 
the namespace too much. So instead I opted to change the the 
render_collection_of_partials to be more like render_partials. I put a 
optional argument on render_collection_of_partials which is a hash of 
local assigns. This allows me to put the following in the parent partial:

<%=render_collection_of_partials ''baz'', @more_recs, nil,
''bar'' => bar%>

This way bar is in scope. If I get some time today I will try to make a 
diff of it against the Rails "head" and create the unit testing for it
in case anybody wants the same functionality.

Eric


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