How to hide form select option when an option is nil rails 4

Question

I've got the following form select:

<%= f.select(:size_requested, [@item.size1, @item.size2, @item.size3, @item.size4, @item.size5, @item.size6, @item.size7, @item.size8, @item.size9, @item.size10], {}, { class: 'form-control quantity-select' }) %>

I'm trying to have it where only the sizes that are not nil are presented as options and avoid this:

When I try things like (@item.size6 if @item.size6) for the options I still have the same issue and the nil options are still visible. Can anyone lead me in the right direction to solve this in a clean way?

Thanks for your help!

Answer 1

You can use the compact method to remove nils from an array. For example:

[1, nil, 2, nil].compact

Also, as a comment on your question suggests, it's a good idea to set up the array in your controller and then reference that in the view rather than performing logic in the view itself.