instance method `extract_values_from_collection`

Ruby on Rails 3.1.12

Since v2.3.18 Private

Available in: v2.3.18 v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

extract_values_from_collection(collection, value_method, selected)

No documentation comment.

Parameters

collection req
value_method req
selected req

Source

# File actionpack/lib/action_view/helpers/form_options_helper.rb, line 540
        def extract_values_from_collection(collection, value_method, selected)
          if selected.is_a?(Proc)
            collection.map do |element|
              element.send(value_method) if selected.call(element)
            end.compact
          else
            selected
          end
        end

Defined in actionpack/lib/action_view/helpers/form_options_helper.rb line 540 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionView::Helpers::FormOptionsHelper

Signature

Parameters