Returns plural/singular for a record or class. Example:

partial_path(post)   # => "posts/post"
partial_path(Person) # => "people/person"

Source Code

# File action_controller/record_identifier.rb, line 38
def partial_path(record_or_class)
  klass = class_from_record_or_class(record_or_class)
  "#{klass.name.tableize}/#{klass.name.demodulize.underscore}"
end