site_map.inc

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<?php
/**************************************************************
 
 Copyright (c) 2010 Sonjara, Inc
 
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 obtaining a copy of this software and associated documentation
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 without prior written authorization.
 
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 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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*****************************************************************/
 
/*
 * Description: data model classes for site hierarchy page
 * chart. Site map or chart can be used for breadcrumbs
 * and site help.
 *
 * author Janice Gallant for Sonjara, Inc.
 * 
 * date: 9/30/10
 * 
 */
 
class SiteMap extends DataItem
{
     var $fields = array(
                         "site_map_id"            =>   Number,
                         "url"                         =>   String,
                         "page_title"             =>   String,
                         "sort_order"             =>   String,
                         "role"                        =>   String,
                         "parent_url"             =>   String,
                         "published"                   =>   Boolean
     );
     
     function Parent()
     {
          $parents = Query::create(SiteMap, "WHERE url=:parent_url")
               ->bind("parent_url", $this->parent_url)
               ->execute();   
          
          return count($parents) ? $parents[0] : null;
     }
     
     function Children($constraint = "")
     {
          $query = "WHERE parent_url=:url";
          if($constraint)
          {
               $query .= preg_replace("/^WHERE/i", " AND", $constraint);
          }
          return Query::create(SiteMap, $query)
               ->bind(":url", $this->url)
               ->execute();
     }
          
     
     function isSibling($url)
     {
          $sibling = false;
 
          $siteMap = SiteMap::findSiteMapPage($url);
          
          $sibling = ($siteMap AND ($siteMap->parent_url == $this->parent_url)) ? true : false;
          
          return $sibling;
     }
     
     static function findSiteMapPage($url)
     {
          if(!$url) return null;
          $siteMaps = Query::create(SiteMap, "WHERE url=:url")
               ->bind(":url", $url)
               ->execute();
          
          return count($siteMaps) ? $siteMaps[0] : null;
     }
     
     // allow delete if the page has no sub or child pages
     function allowDelete()
     {
          $count = Query::create(SiteMap, "WHERE parent_url=:url")
               ->bind(":url", $this->url)
               ->executeValue("COUNT(1)");
          
          return ($count > 0) ? false : true;
     }
     
     function isLeaf()
     {
          return $this->allowDelete();
     }
     
     /*
      * For select field renderer
      */
     static function getSiteMapPageList()
     {
          $siteMapPages = query(SiteMap, "ORDER BY url");
                    
          if(count($siteMapPages) > 0)
          {
               foreach($siteMapPages as $sPage)
               {
                    $pageList[$sPage->url] = $sPage->url . ": " . $sPage->page_title;
               }
          }
          
          $pageList[""] = "";
          return $pageList;
     }
          
     function SiteMap()
     {
          $this->table = "site_map";
          $this->primary_key = "site_map_id";
 
          $this->DataItem(func_get_args());
     }
}
?>