如何在Rails 中将复选框默认为"选中"？

<%= check_box("model", "attribute", { checked: true }, 1, 0) %>

def new
  @model = Model.new
  @model.attribute = true
end

class Model< ApplicationRecord
  after_initialize :set_defaults, if: :new_record?

  def set_defaults
    self.attribute = true
  end
end