How to open a popup from Rails

19 December 2015

In the view where the popup is wanted

<%= render 'popup_con_mensaje' %>

_popup_con_mensaje.html.erb

<!-- Modal -->
<div class="modal" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel"><%= t(:Modal_title) %></h4>
      </div>
      <div class="modal-body">
        <h4><%= t(:Modal_message) %></h4>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-primary" data-dismiss="modal"><%= t(:Close_modal) %></button>
      </div>
    </div>
  </div>
</div>

Show from the controller:

show_popup.js.erb

$('#myModal').modal('show')

In controller action

render :show_popup

Show from the view:

<%= link_to ...., onclick: "$('#myModal').modal('show');" ...

In bootstrap-sprockets.js

//= require ./bootstrap/modal

More information at http://getbootstrap.com/javascript/#modals