scinote-web/app/views/users/shared/_user_avatars_modal.html.erb

<div class="modal modal-user-avatar" tabindex="-1" role="dialog"
  data-update-url="<%= registration_path(resource_name) %>"
>
    <div class="modal-dialog">
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal"  aria-label="<%= t('general.close') %>"><span aria-hidden="true">&times;</span></button>
          <h4 class="modal-title">
            <%= t('users.registrations.edit.avatar_modal.title') %>
          </h4>
        </div>
        <div class="modal-body">
          <div class="upload-block">
              <div class="current-avatar">
                <%= image_tag avatar_path(current_user, :thumb) %>
                <%= file_field_tag :raw_avatar, style: "display:none" %>
                <%= hidden_field_tag :new_avatar, "" %>
              </div>
              <div class="avatar-preview-container" style="display:none"></div>
              <div class="btn btn-secondary upload-photo"><%= t('users.registrations.edit.avatar_modal.upload_button') %></div>
          </div>
          <div class="option-text">
            <%= t('users.registrations.edit.avatar_modal.option_text_html') %>
          </div>
          <div class="avatar-collection perfect-scrollbar">
            <% Dir["public/images/avatars/*.png"].each do |avatar| %>
              <% avatar_name = avatar.split('/')[-1] %>
              <div class="avatar" data-avatar="<%= avatar_name %>">
                <%= image_tag "/images/avatars/#{avatar_name}" %>
              </div>
            <% end %>
          </div>
        </div>
        <div class="modal-footer">
          <button type="button" disabled class="btn btn-primary save-button"><%= t('general.save') %></button>
        </div>
      </div>
    </div>
  </div>