array in two columns

in_two_columns.rb

def in_two_columns(objects)
  items_in_column = (olbjects.size / 2.0).ceil
  objects.in_groups_of(items_in_column, false) do |obj|
    yield obj if block_given?
  end
end

# method inputs array and block
#  
# example: 
# 
#<div class="columns">
#  <%= in_two_columns news do |news| %>
#    <div class="columns">
#      <ul>
#        <% news.each do |page| %>
#          <li>
#            <%= link_to page.full_path do %>
#              <span><%= page.label %></span>
#            <% end %>
#          </li>
#        <% end %>
#      </ul>
#    </div>
#  <% end %>
#</div> 
#
#################
#
# Output:
#<div class="columns">
#    <div class="columns">
#      <ul>
#          <li>
#            <a url="test"> Test news #1 </a>
#            <span>Test body</span>
#          </li>
#          <li>
#            <a url="test"> Test news #2 </a>
#            <span>Test body</span>
#          </li>
#          <li>
#            <a url="test"> Test news #2 </a>
#            <span>Test body</span>
#          </li>
#      </ul>
#    </div>
#    <div class="columns">
#      <ul>
#          <li>
#            <a url="test"> Test news #4 </a>
#            <span>Test body</span>
#          </li>
#          <li>
#            <a url="test"> Test news #5 </a>
#            <span>Test body</span>
#          </li>
#          <li>
#            <a url="test"> Test news #6 </a>
#            <span>Test body</span>
#          </li>
#      </ul>
#    </div>
#</div>