rails+select2+multiple

[Цибарт Сергей]

Good day! please help deal with the problem? have "form.js.coffee" file

...

searchUsersUrl = '/ users / select? limit = 7b

...

$ (UsersSelector, container) .select2

      minimumInputLength: 1

      width: 'resolve'

      multiple: true

      formatSearching: -> ( 'Search ...')

      formatInputTooShort: -> ( 'Enter a word to begin search')

      formatNoMatches: -> ( 'No results found')

      tags: true

      tokenSeparators: [ ",", ";"]

      createSearchChoice: (term, data) ->

        if mconf.Base.validateEmail (term)

          {Id: term, text: term}

      formatSelection: (object, container) ->

        text = if object.name?

          object.name

        else

          object.text

        mconf.Base.escapeHTML (text)

      ajax:

        url: searchUsersUrl

        dataType: "json"

multiple: true

        data: (term, page) ->

          q: term # search term

        results: (data, page) -> # parse the results into the format expected by Select2.

          results: data

    # This option will open the select2 field ready to search

    $ (UsersSelector) .select2 'open'

    # This option is optional. It was used just to improve the style of the page

    $ (UsersSelector) .select2 'focus'

    $ (UsersSelector) .on "change", =>

      @checkRequired ()

and "form.html.haml file"

...

= simple_form_for :invite, :url => send_invitation_bigbluebutton_room_path(room), :html => { :class => 'single-column'} do |f|

...

    .modal-body

      .invitation-header

        %span= t('.meeting_in')

        %span.meeting-url= join_webconf_url(room)

.....

      = f.input :users, :as => :string, :label => t('activerecord.attributes.invite.users')

.... . 

Everything works except multiple choice multiple. Help