<% @punches_days.sort.each do |day, punches|%>

<h3><%= day.strftime('%A %D') %></h3>
<table>
  <tr>

    <th>Status</th>
    <th>Comment</th>
    <th>Time</th>
    <th></th>
    <th></th>
  </tr>

<% for punch in punches %>
  <tr>

    <td><%= punch.status %></td>
    <td><%= punch.comment %></td>
    <td><%= punch.created_at.in_time_zone(punch.user.time_zone)%></td>
    <td><%= link_to 'Show', punch %></td>
    <td><%= link_to 'Edit', edit_punch_path(punch) %></td>
    <td><%= link_to 'Destroy', punch, :confirm => 'Are you sure?', :method => :delete %></td>
  </tr>
<% end %>
</table>


<% end %>

Sunday 11/06/11

Status  Comment Time
In      2011-11-06 08:00:00 -0500   Show    Edit    Destroy
Lunch       2011-11-06 12:00:00 -0500   Show    Edit    Destroy
In      2011-11-06 13:00:00 -0500   Show    Edit    Destroy
Out     2011-11-06 16:00:00 -0500   Show    Edit    Destroy

 Tuesday 11/08/11

Status  Comment Time
In      2011-11-08 08:00:00 -0500   Show    Edit    Destroy
Lunch       2011-11-08 12:15:00 -0500   Show    Edit    Destroy
In      2011-11-08 13:00:00 -0500   Show    Edit    Destroy
Out     2011-11-08 16:41:00 -0500   Show    Edit    Destroy

def timecard
       @punches = Punch.timecard(params[:user])
       @punches_days = @punches.group_by { |t| t.created_at.beginning_of_day}
       @in_out_lengths = @punches.each_slice(2).map { |a| a[1].created_at -            a[0].created_at }
       @total          = ((@in_out_lengths.inject(:+))/1.hour).round


    respond_to do |format|
      format.html # timecard.html.erb
      format.json { render :json => @punches }
    end
  end

in_out_lengths = punches.each_slice(2).map { |a| a[1].created_at - a[0].created_at }
total          = in_out_lengths.inject(:+)

punches.each_slice(2).map { |a| a.last.created_at - a.first.created_at }