rails-gems-blog-snippet-13.rb

<script>
    $(document).ready(function() {
        $("select#ema").select2();
    });
</script>

<br>
<div class="field" id="recipients_selection">
	<%= f.label "Or send to select emails from employee database" %><br>
	<%= select_tag :bulk_mail_recipients, options_from_collection_for_select(@employees, :id, :email), id: :ema, :multiple => :multiple, :multiple => true, :style => "width:800px;", data: {placeholder: "Choose an email"} %>
</div>