Rails acts-as-taggable-on with select2 (and simple_form)

Question

I would like to have a select2 dropdown of tags, where i could select multiple existing tags and add new ones.

I have tried many different ways and i either don\'t g

Answer 1

For me work this:

Coffee script:

  $( ".tags" ).select2
    theme: "bootstrap",
    tags: true
    tokenSeparators: [',']

and in the view:

= f.input :tag_list, input_html: { class: 'tags', multiple: "multiple" }, collection: @video.tag_list

Important part is multiple: "multiple"

And of course, how Mitja said, don't forget to put { tag_list: [] } to your controller strong parameters.

And as example, if you want to have your tags as suggestions in the dropdown, you could do this:

= f.input :tag_list, input_html: { class: 'tags', multiple: "multiple" }, collection: ActsAsTaggableOn::Tag.most_used(30), value_method: :name