Rails + Ransack - Drop Down List Collection?

Question

I am loving the ransack gem for its flexibility, however I am unable to get the standard collection_select to function properly. Perhaps someone can assist.

Example:

Answer 1

To do this with an include_blank, put it outside of the parentheses:

ex:

<%= f.select :languages_id_eq, options_from_collection_for_select(Language.all, "id", "name"), include_blank: true %>

== UPDATE ==

better yet, use f.collection_select. This way after the user searches for something using the drop down, that option is preselected on the following page:

<%= form.collection_select :vendor_id_eq, Vendor.all, :id, :name, include_blank: true %>