openproject/app/views/groups/_users.html.erb

<div class="splitcontentleft">
<% if @group.users.any? %>
	<table class="list users">
		<thead><tr>
		  <th><%= User.model_name.human %></th>
		  <th style="width:15%"></th>
		</tr></thead>
		<tbody>
		<% @group.users.sort.each do |user| %>
			<tr id="user-<%= user.id %>" class="<%= cycle 'odd', 'even' %>">
				<td class="user"><%= link_to_user user %></td>
			  <td class="buttons">
          <%= link_to l(:button_delete), member_of_group_path(@group, user),
                                         :method => :delete,
                                         :remote => :true,
                                         :class => 'icon icon-del' %>

			  </td>
			</tr>
		<% end %>
		</tbody>
	</table>
<% else %>
	<p class="nodata"><%= l(:label_no_data) %></p>
<% end %>
</div>

<div class="splitcontentright">
<% users = User.active.not_in_group(@group).all(:limit => 100) %>
<% if users.any? %>
  <%= form_tag(members_of_group_path(@group), :method => :post, :remote => true) do |f| %>
    <fieldset><legend><%=l(:label_user_new)%></legend>

		<p><%= label_tag "user_search", l(:label_user_search) %><%= text_field_tag 'user_search', nil %></p>
		<%= observe_field(:user_search,
                      :frequency => 0.5,
                      :update => :users,
                      :url => { :controller => '/groups', :action => 'autocomplete_for_user', :id => @group },
                      :with => 'q',
                      :method => :get)
                  %>

		<div id="users">
			<%= principals_check_box_tags 'user_ids[]', users %>
		</div>

    <p><%= submit_tag l(:button_add) %></p>
		</fieldset>
  <% end %>
<% end %>

</div>