We can pass local variable to partial as follow.

<%= render :partial => 'shard/test', :locals => {:foo => "bar", :foos => ["bar1", "bar2"]} %>

<rails_project>/app/views/shared/_test.html.erb

<!-- print "bar" -->
<%= foo %>
<!-- print "bar1" and "bar2" -->
<%= foos.to_s %>

Done =)

Reference:

• StackOverflow – Ruby on Rails – How to pass hash parameter to a partial view?
• Action View Partials