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Description: Git mirror of the CMS Made Simple 2.0 rewrite
Homepage: http://cmsmadesimple.org
Clone URL: git://github.com/tedkulp/cmsmadesimple-2-0.git
cmsmadesimple-2-0 / lib / classes / class.cms_date_time.php
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<?php // -*- mode:php; tab-width:4; indent-tabs-mode:t; c-basic-offset:4; -*-
#CMS - CMS Made Simple
#(c)2004-2008 by Ted Kulp (ted@cmsmadesimple.org)
#This project's homepage is: http://cmsmadesimple.org
#
#This program is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 2 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.
#You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#$Id$
 
/**
 * Wraps the DateTime class in PHP 5.2+.  It allows us to have a consistent
 * object for handling dates and is especially useful when handing dates over
 * to the ORM system.  Includes methods for manipulating the stored date and
 * time.
 *
 * @since 2.0
 * @author Ted Kulp
 **/
class CmsDateTime extends CmsObject
{
  private $datetime = null;
 
  function __construct($curtime = 'now')
  {
    if (is_int($curtime))
      $curtime = strftime('%x %X', $curtime);
 
    try
    {
      $this->datetime = date_create($curtime);
    }
    catch (Exception $e)
    {
      $this->datetime = date_create('now');
    }
  }
  
  function __toString()
  {
    return $this->to_format_string();
  }
  
  function modify($modify)
  {
    date_modify($this->datetime, $modify);
  }
  
  function format($format)
  {
    try
    {
      return @date_format($this->datetime, $format);
    }
    catch (Exception $e)
    {
      return '';
    }
  }
  
  function strftime($format)
  {
    try
    {
      return @strftime($format, $this->datetime->format('U'));
    }
    catch (Exception $e)
    {
      return '';
    }
  }
  
  function timestamp()
  {
    return $this->format('U');
  }
 
  /**
   * Returns a formatted string based on the individual user's settings.
   * If no one is logged in, then a default based on locale is used.
   *
   * @return String The formatted datetime string
   * @author Ted Kulp
   **/
  function to_format_string()
  {
    $format = '%x %X';
 
    $user = CmsLogin::get_current_user();
    if ($user != null)
      $format = get_preference($user->id, 'date_format_string', $format);
 
    return $this->strftime($format);
  }
  
  /**
   * Returns a formating string based on the current database connection.
   *
   * @return String the formatted datetime string
   * @author Ted Kulp
   */
  function to_sql_string()
  {
    return cms_db()->DBTimeStamp($this->timestamp());
  }
}
 
# vim:ts=4 sw=4 noet
?>