How can I access the :locals hash from inside a partial instead of the local variables with the same name?

Question

Apart from being a good idea or not, I would like to know how to access the :locals hash from inside a partial instead of the local variables with the same name?

I'm attempting to try to explore a potentially more efficient approach to a pattern I often find myself in involving default partial values:

:locals => { :opts => {:myvar => @myvar}}

Then inside partial:

opts.reverse_merge!(defaults)

It would be a lot cleaner to write (especially when opts get more numerous):

:locals => { :myvar => @myvar}

Then inside partial:

opts => defaults.merge(local_hash)

Answer 1

You can access everything that came in on the locals hash to a rendered partial by calling local_assigns. I think you'll find, however, that there is more coming in than you'd expect (as Rails creates a few local assigns of its own for your convenience). So your approach may need to adjust... but this is how you'd do it.