Rails Formtastic: adding “data-” field to option tag

Question

I have:

form.input :duration, as: select, collection: {}

I need:

Answer 1

Actually rails does support adding any kind of html tag to options. Usually you would have:

options_for_select( [['First', 1], ['Second', 2]] )

which would give you

First
Second

If you add a hash into the arrays for each option the hash keys/values will be added as HTML attribute to the option, e.g.

options_for_select( [['First', 1, {:'data-price' => 20}],
                     ['Second', 2, {:'data-price' => 30}]] )

will produce the required tags:

First
Second