Rails-如何在options_from_collection_for_select中显示整数？

Question

I wish to display a list a selectable list of 1-42 on a form. I have an array assignment in the controller's new me to create the list:

@cabinet_position_list = (1..42).to_a

The number will be assigbed to device.position but I can't figure out how to display the numbers in the box. Here's the best I've come up with on the form:

<%= f.select :position, options_from_collection_for_select(@cabinet_position_list, "position", "?????") %>

Answer 1

You don't need options_from_collection_for_select in this case. Just:

f.select :position, @cabinet_position_list

or

f.select :position, (1..42).to_a

Answer 2

options_for_select(@cabinet_position_list)应该可以工作！