public function manage_column($column, $post_id)
 {
     switch ($column) {
         case 'booking_status':
             echo SLN_Enum_BookingStatus::getLabel(get_post_meta($post_id, '_sln_booking_status', true));
             break;
         case 'service_duration':
             $time = SLN_Func::filter(get_post_meta($post_id, '_sln_service_duration', true), 'time');
             echo $time ? $time : '-';
             break;
         case 'service_price':
             echo $this->getPlugin()->format()->money(get_post_meta($post_id, '_sln_service_price', true));
             break;
     }
 }
<ul>
<li><span class="pull-left event event-warning"></span><?php 
echo SLN_Enum_BookingStatus::getLabel(SLN_Enum_BookingStatus::PENDING);
?>
</li> 
<li><span class="pull-left event event-success"></span><?php 
echo SLN_Enum_BookingStatus::getLabel(SLN_Enum_BookingStatus::PAID);
?>
 <?php 
_e('or', 'sln');
?>
 <?php 
echo SLN_Enum_BookingStatus::getLabel(SLN_Enum_BookingStatus::CONFIRMED);
?>
</li>
<li><span class="pull-left event event-info"></span><?php 
echo SLN_Enum_BookingStatus::getLabel(SLN_Enum_BookingStatus::PAY_LATER);
?>
</li>
<li><span class="pull-left event event-danger"></span><?php 
echo SLN_Enum_BookingStatus::getLabel(SLN_Enum_BookingStatus::CANCELED);
?>
</li>
</ul>
<div class="clearfix"></div>
        </div>
    </div>
</div>
<div class="clearfix"></div>

    function tpl_summary_details($booking, $plugin)
    {
        ?>
<table width="502" border="0" align="left" cellpadding="0" cellspacing="0">
          <tbody><tr>
            <td width="157" align="center" valign="top" style="border-right:2px solid #f2f2f2;"><table width="112" border="0" align="center" cellpadding="0" cellspacing="0">
              <tbody><tr>
                <td align="left" valign="top">&nbsp;</td>
              </tr>
              <tr>
                <td height="25" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#cc3333; font-weight:normal;"><?php 
        _e('Date', 'sln');
        ?>
</td>
              </tr>
              <tr>
                <td height="36" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:18px; color:#666666; font-weight:bold;"><?php 
        echo $plugin->format()->date($booking->getDate());
        ?>
</td>
              </tr>
              <tr>
                <td height="25" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#cc3333; font-weight:normal;"><?php 
        echo _e('Time', 'sln');
        ?>
</td>
              </tr>
              <tr>
                <td align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:18px; color:#666666; font-weight:bold;"> <?php 
        echo $plugin->format()->time($booking->getTime());
        ?>
</td>
              </tr>
    <?php 
        if ($attendant = $booking->getAttendant()) {
            ?>
              <tr>
                <td height="25" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#cc3333; font-weight:normal;"><?php 
            echo _e('Attendant', 'sln');
            ?>
</td>
              </tr>
              <tr>
                <td align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:18px; color:#666666; font-weight:bold;"> <?php 
            echo $attendant->getName();
            ?>
</td>
              </tr>
   <?php 
        }
        ?>
 
              <tr>
                <td align="left" valign="top">&nbsp;</td>
              </tr>
            </tbody></table></td>
            <td width="194" align="center" valign="top" style="border-right:2px solid #f2f2f2;"><table width="155" border="0" cellspacing="0" cellpadding="0">
              <tbody><tr>
                <td align="left" valign="top">&nbsp;</td>
              </tr>
              <tr>
                <td height="30" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#cc3333; font-weight:normal;"><?php 
        _e('Services');
        ?>
</td>
              </tr>
                                    <?php 
        foreach ($plugin->getServices() as $service) {
            ?>
                                        <?php 
            if ($booking->hasService($service)) {
                ?>
                                        <tr>
                                            <td height="20" align="left" valign="top"
                                                style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#666666; font-weight:bold;"><?php 
                echo $service->getName();
                ?>
</td>
                                        </tr>
                                    <?php 
            }
            ?>
                                    <?php 
        }
        ?>
             <tr>
                <td align="left" valign="top">&nbsp;</td>
              </tr>
            </tbody></table></td>
            <td width="147" align="center" valign="top"><table width="112" border="0" align="center" cellpadding="0" cellspacing="0">
              <tbody><tr>
                <td align="left" valign="top">&nbsp;</td>
              </tr>
              <tr>
                <td height="25" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#cc3333; font-weight:normal;"><?php 
        _e('Total amount', 'sln');
        ?>
</td>
              </tr>
              <tr>
                <td height="36" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:18px; color:#666666; font-weight:bold;"> <?php 
        echo $plugin->format()->money($booking->getAmount());
        ?>
</td>
              </tr>
              <tr>
                <td height="28" align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#cc3333; font-weight:normal;"><?php 
        _e('Status', 'sln');
        ?>
</td>
              </tr>
              <tr>
                <td align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:18px; color:#666666; font-weight:bold;"><?php 
        echo SLN_Enum_BookingStatus::getLabel($booking->getStatus());
        ?>
</td>
              </tr>
              <tr>
                <td align="left" valign="top">&nbsp;</td>
              </tr>
            </tbody></table></td>
          </tr>
        </tbody></table>
<?php 
    }
SLN_Form::fieldDate($helper->getFieldName($postType, 'date'), $booking->getDate());
?>
                    <?php 
SLN_Form::fieldTime($helper->getFieldName($postType, 'time'), $booking->getTime());
?>
                </label>
            </div>
        </div>
        <div class="col-md-6 col-sm-4">
            <div class="form-group sln_meta_field ">
                <label><?php 
_e('Status', 'sln');
?>
</label>
                <?php 
SLN_Form::fieldSelect($helper->getFieldName($postType, 'status'), SLN_Enum_BookingStatus::toArray(), $booking->getStatus(), array('map' => true));
?>
            </div>
        </div>
    </div>
    <div class="sln-separator"></div>
    <div class="form-group sln_meta_field">
        <label><?php 
_e('Attendant', 'sln');
?>
</label><br/>
        <?php 
foreach ($plugin->getAttendants() as $attendant) {
    ?>
            <div class="row">
                <div class="col-md-1 col-sm-1 col-xs-2">
 private function wrapBooking($booking)
 {
     return array("id" => $booking->getId(), "title" => $this->getTitle($booking), "url" => get_edit_post_link($booking->getId()), "class" => "event-" . SLN_Enum_BookingStatus::getColor($booking->getStatus()), "start" => $booking->getStartsAt()->format('U') * 1000, "end" => $booking->getEndsAt()->format('U') * 1000, "event_html" => $this->getEventHtml($booking));
 }
    <td height="105" align="center" valign="middle" bgcolor="#f2f2f2" style="border-bottom:2px solid #fff;"><table width="191" border="0" align="center" cellpadding="0" cellspacing="0">
      <tr>
        <td width="55" align="left" valign="top"><a href="#"><img src="<?php 
echo SLN_PLUGIN_URL;
?>
/img/summary.png" width="40" height="41" alt="img1" border="0" align="left"></a></td>
        <td align="left" valign="top"><table width="100%" border="0" align="left" cellpadding="0" cellspacing="0">
          <tr>
            <td height="20" align="left" valign="bottom" style="font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#cccccc; font-weight:bold;"><?php 
_e('Booking ID', 'sln');
?>
 <b style="color:#666666;"><?php 
echo $booking->getId();
?>
</b></td>
          </tr>
          <tr>
            <td height="25" align="left" valign="bottom" style="font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#cccccc; font-weight:bold;"><?php 
_e('Status', 'sln');
?>
 <b style="color:#666666;"><?php 
echo SLN_Enum_BookingStatus::getLabel($booking->getStatus());
?>
</b></td>
          </tr>
        </table></td>
      </tr>
    </table></td>
</tr>

 public function bulkPostStates()
 {
     global $post;
     $arg = get_query_var('post_status');
     if ($post->post_type == SLN_Plugin::POST_TYPE_BOOKING) {
         foreach (SLN_Enum_BookingStatus::toArray() as $k => $v) {
             if ($arg != $k) {
                 if ($post->post_status == $k) {
                     return array($v);
                 }
             }
         }
     }
     return null;
 }
 public static function init()
 {
     self::$labels = array(self::ERROR => __('ERROR', 'sln'), self::PENDING => __('Pending', 'sln'), self::PAID => __('Paid', 'sln'), self::PAY_LATER => __('Pay later', 'sln'), self::CANCELED => __('Canceled', 'sln'), self::CONFIRMED => __('Confirmed', 'sln'));
 }