fill_in_fields (i keep re-implementing this ...)

fill_in_fields.rb

# Usage:
#   fill_in_fields :foo => 'bar'                                # fill_in 'foo', :with => 'bar'
#   fill_in_fields :user, :name => 'bob'                        # fill_in 'user_name', :with => 'bob'
#   fill_in_fields :contact, :address, :street => '6 cedar rd'  # fill_in 'contact_address_street_, :with => '6 cedar rd'
def fill_in_fields *args
  field, value = args.pop.first
  prefix = ''
  while args.any?
    prefix += args.shift.to_s + "_" 
  end 
  fill_in "#{prefix}#{field}", :with => value
end

fill_in_fields_example.rb

def fill_in a, options
  puts "fill_in(#{a.inspect}, #{options.inspect})"
end

>> fill_in_fields :foo => 'bar'
fill_in("foo", {:with=>"bar"})

>> fill_in_fields :user, :name => 'bob'
fill_in("user_name", {:with=>"bob"})

>> fill_in_fields :contact, :address, :street => '6 cedar rd'
fill_in("contact_address_street", {:with=>"6 cedar rd"})