datetime_type_renderer.inc

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<?php
/**************************************************************
 
 Copyright (c) 2007-2010 Sonjara, Inc
 
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 obtaining a copy of this software and associated documentation
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require_once realpath(dirname(__FILE__)."/abstract_type_renderer.inc");
 
class DateTimeTypeRenderer extends AbstractTypeRenderer
{
     
     function DateTimeTypeRenderer()
     {
     }
     
     /*
      * If no template, use formatDateShort, otherwise,
      * format using template provided the date function:
      * 
      * http://php.net/manual/en/function.date.php
      * 
      * default: "m/d/Y g:ia";
      * 
      * examples:
      * {my_datetime} returns the default 2/12/2011 12:30am
      * {my_datetime:l F j, Y g:ia} returns long format Monday February 12, 2011 12:30am
      * {my_datetime:F d, Y g:ia} returns February 12, 2011 12:30am
      * 
      * Template shorthand:
      * {my_timestamp:short} - returns format 1 above
      * {my_timestamp:daylong} = returns format 2 above
      * {my_timestamp:long} - returns format 3 above
      * 
     */
     static function format($datetime, $template = "")
     {
          trace("DateTimeTypeRenderer template is $template and value is $datetime", 5);
               
          $text = "";
               
          if($datetime && !$template)
               $template = "m/d/Y g:ia";
 
          // Convert shorthand to format needed for date function
          $template = AbstractTypeRenderer::translationDateTemplate($template);
          
          // strip time component if hours is empty
          if(preg_match("/00:00:00/", $datetime))
          {         
               $patterns = "/(g|i|a|:|h|s|b|p|t|z|c|r|u)/i";
          $template = preg_replace($patterns, "", $template);
               trace("DateTimeTypeRenderer no time component: template is $template and value is $datetime", 5);
          }
 
          trace("DateTimeTypeRenderer template is $template and value is $datetime", 5);
          
          if($datetime)
          {
               $dateObj = new DateTime($datetime);
               $text = $dateObj->format($template);
          }
          // else if no date return "";
               
          return $text; 
     }
}