I want to build a select input from an array (and not a collection of models), with SimpleForm, and have different classes for each options.
select
option
You also can pass array of arrays as an argument
= f.input :status, collection: [['option text', 'option_value_1', {"class" => "class_name_1"}], ['option text 2', 'option_value_2', {"class" => "class_name_2"}]]