global

def change
  create_join_table :<%= join_tables.first %>, :<%= join_tables.second %> do |t|
  <%- attributes.each do |attribute| -%>
    <%= '# ' unless attribute.has_index? -%>t.index <%= attribute.index_name %><%= attribute.inject_index_options %>
  <%- end -%>
  end
end