Populate Multi-Select on Edit

[kjgenevieve]

Hello,

I haven't been able to get the formerly selected items to populate my form on edit. It appears blank, just as it would in a new form. If I save without touching the multi-select, the previous choices are sustained.

My edit form code is:

    <%= form.select :tag_list,
        Tag.all.map { |t| [t.name, t.id] },
            { include_blank: false},
            { class: "chosen-select", multiple: true }
    %>

[kjgenevieve]

Updated my code to what's below does show me the selected items, but I cannot get the Chosen-style appearance.

                                <%= form.collection_select(
                                    :tag_ids, 
                                    Tag.all, 
                                    :id, 
                                    :name, 
                                    {}, 
                                    {multiple: true, class: "chosen-select"})
                                %>

[bjer]

A bit late to the party...
Did you require chosen-jquery in application.js / , chosen in application.css and did you have
<%= javascript_include_tag 'application' %> in your app layout ?
Works for me using rails 6.x