Question

This would list numbers 5.0 to 7.0 in a drop select menu:

<%= f.select :height, (5..7).step(0.1) %>

How would I list 5.0 to 7.0 but also include an option of “Below 5.0” and “Above 7.0” as part of the menu?

I’m trying to create a dropdown/select menu for my users to select their height and wish to avoid doing it the long way.

Answer 1

Create a helper method to do the construction (somewhat based on PinnyM’s answer)

module MycontrollerHelper
  def decimal_selection_array(start,limit,step_size=1)
    decimal_array = (start..limit).step(step_size).map(&:to_s).to_a
    decimal_array.insert(0,"Below #{start.to_f}")
    decimal_array.insert(-1,"Above #{limit.to_f}")
  end
end