File Manager

<?php
#BEGIN_LICENSE
#-------------------------------------------------------------------------
# Module: CGBlog (c) 2010-2014 by Robert Campbell
#         (calguy1000@cmsmadesimple.org)
#  An addon module for CMS Made Simple to allow creation, management of
#  and display of blog articles.
#
#  This module forked from the original CMSMS News Module (c)
#  Ted Kulp, and Robert Campbell.
#
#-------------------------------------------------------------------------
# CMS - CMS Made Simple is (c) 2005 by Ted Kulp (wishy@cmsmadesimple.org)
# Visit the CMSMS homepage at: http://www.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.
#
# However, as a special exception to the GPL, this software is distributed
# as an addon module to CMS Made Simple.  You may not use this software
# in any Non GPL version of CMS Made simple, or in any version of CMS
# Made simple that does not indicate clearly and obviously in its admin
# section that the site was built with CMS Made simple.
#
# 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
# Or read it online: http://www.gnu.org/licenses/licenses.html#GPL
#
#-------------------------------------------------------------------------
#END_LICENSE

final class cgblog_smarty_plugins 
{
  private function __construct() {}

  public static function relative_article($params,$smarty)
  {
    // given the article id, and (optionally) a post date
    // this function will find the next (or previous) viewable article by post date
    $retval = null;
    $article_id = (int)cge_utils::get_param($params,'article');
    $postdate   = trim(cge_utils::get_param($params,'postdate'));
    $dir = strtolower(trim(cge_utils::get_param($params,'dir','next')));

    if( $article_id > 0 ) {
      switch( $dir ) {
      case '>':
      case 'n':
      case 'next':
      default:
	$dir = 'next';
	break;
      case '<':
      case 'p':
      case 'prev':
	$dir = 'prev';
	break;
      }

      // gotta load the article.
      // hopefully we don't actually have to query for it again.
      $article = cgblog_article::get_by_id($article_id,TRUE,FALSE,FALSE);
      if( is_object($article) ) {
	// build a query
	$query = 'SELECT A.cgblog_id FROM '.cms_db_prefix().'module_cgblog A
                  WHERE A.status = ? AND A.cgblog_id != ? AND 
                  COALESCE(A.start_time,\'1900-01-01\') < NOW() AND 
                  COALESCE(A.end_time,\'2999-12-31\') > NOW()';
	$parms = array('published',$article_id);
	switch( $dir ) {
	case 'next':
	  $query .= ' AND A.cgblog_date > ? ORDER BY A.cgblog_date ASC';
	  $parms[] = $article->postdate;
	  break;
	case 'prev':
	  $query .= ' AND A.cgblog_date < ? ORDER BY A.cgblog_date DESC';
	  $parms[] = $article->postdate;
	  break;
	}

	$db = cmsms()->GetDb();
	$retval = $db->GetOne($query,$parms);
      }
    }

    if( isset($params['assign']) ) {
      $smarty->assign(trim($params['assign']),$retval);
      return;
    }
    return $retval;
  }
} // end of class

#
# EOF
#
?>