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iqbalhasnan/option_groups_from_collection_for_select.rb

Created January 7, 2017 00:38
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ActiveAdmin Group Select With Formstatic
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option_groups_from_collection_for_select.rb
class Category < ApplicationRecord
has_many :types
end
class Type < ApplicationRecord
belongs_to :category
end
# Admin DSL. you need to pass the the selected type_id by passing the form object value.
f.input :category
f.input :type, as: :select, collection: option_groups_from_collection_for_select(Category.all, :types, :name, :id, :name, f.object.type_id)
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