<?php
/**
* Defines the ArticlePage page type
*/
class ArticlePage extends Page {
static $db = array(
      'Date' => 'Date',
      'Author' => 'Text',   
);
static $has_one = array(
);
static $icon = "themes/tutorial/images/treeicons/news";

   function getCMSFields() {
      $fields = parent::getCMSFields();
      
      $fields->addFieldToTab('Root.Content.Main', new TextField('Author'), 'Content');
      // $fields->addFieldToTab('Root.Content.Main', new DateField('Date'), 'Content');
      
      $datefield = new DateField('Date');
      $datefield->setConfig('showcalendar', true);
      $datefield->setConfig('showdropdown', true);
      $datefield->setConfig('dateformat', 'dd/MM/YYYY');
      
      $fields->addFieldToTab('Root.Content.Main', $datefield, 'Content');

      return $fields;
   }

}

class ArticlePage_Controller extends Page_Controller {

   function LatestNews($num=3) {
      $news = DataObject::get_one("NewsHolder");
      return ($news) ? DataObject::get("ArticlePage", "ParentID = $news->ID", "Date DESC", "", $num) : false;
   }

// ************ Previous or Next Buttons *************
   
public function nextPager() {
$where = "ParentID = ($this->ParentID + 0) AND Sort > ($this->Sort + 0 )";
$pages = DataObject::get("SiteTree", $where, "Sort", "", 1);
if($pages) {
foreach($pages as $page) {
return $page;
}
}
}
public function previousPager() {
$where = "ParentID = ($this->ParentID + 0) AND Sort < ($this->Sort + 0)";
$pages = DataObject::get("SiteTree", $where, "Sort DESC", "", 1);
if($pages) {
foreach($pages as $page) {
return $page;
}
}
}

}

?>

<div class="paging">
    <% if previousPager %>
    <p class="previous"><a href="$previousPager.URLSegment">Previous</a></p>
    <% end_if %>
    <% if nextPager %>
    <p class="next"><a href="$nextPager.URLSegment">Next</a></p>
    <% end_if %>
</div>