Drop down with predefined values

Question

• How will i add predefined values to a collection_select? Like...
  US
  UK
  AUS
  PAK
  

Answer 1

The collection_select helper is used for when you want the options within the select element to come from a collection of ActiveRecord models. For your requirements you should use the select helper in combination with options_for_select:

<%= select(:country, :country_id,
  options_for_select([['US', 1], ['UK', 2], ['AUS', 3], ['PAK', 4]])) %>

• select API documentation