VbzCart/archive/code/files/store.php

About

Purpose: Classes for displaying different types of catalog display pages
History:
- 2009-03-07 Transcribed from working code at vbz.net
To Do:
- should be split up into auto-loadable class files, e.g. vbz.title.php, vbz.dept.php, etc.
- "clsFactory" should be eliminated in favor of static functions for each class

Code - store.php

<php><?php /*

FILE: store.php
PURPOSE: vbz class library - should eventually be subdivided
HISTORY:
 2009-07-11 (Wzl) Lots of cleanup; added types and methods needed for shopping cart page

/

//define('kfpHostAcctRoot','/hsphere/local/home/hypertwi/'); //define('kfpMediaWiki',kfpHostAcctRoot.'wiki.vbz.net/'); define('kEmbeddedPagePrefix','embed:');

if (defined( '__DIR__' )) {

 $fpThis = __DIR__;

} else {

 $fpThis = dirname(__FILE__);

} if (!defined('LIBMGR')) {

   require('libmgr.php');

} clsLibMgr::Add('datamgr',$fpThis.'/datamgr.php'); clsLibMgr::Load('datamgr');

define('EN_PGTYPE_NOTFND',-1); // requested item (supp/dept/title) not found define('EN_PGTYPE_HOME',1); // catalog home page define('EN_PGTYPE_SUPP',2); // supplier page define('EN_PGTYPE_DEPT',3); // department page, or possibly title for keyless dept define('EN_PGTYPE_TITLE',4); // title page // table names // - caching define('ksTbl_cache_tables','data_tables'); define('ksTbl_cache_procs','data_procs'); define('ksTbl_cache_flow','data_flow'); define('ksTbl_cache_log','data_log'); // - stock define('ksTbl_stock_places','stk_places'); define('ksTbl_stock_bins','stk_bins'); define('ksQry_stock_bins_wInfo','qryStk_Bins_w_info'); define('ksTbl_stock_items','stk_items'); define('ksTbl_stock_hist_items','stk_history'); define('ksTbl_stock_hist_bins','stk_bin_history');

$vbgImgSize = array(

   'th'	=> 'thumbnail',
   'sm'	=> 'small',
   'big' 	=> 'large',
   'huge'	=> 'huge',
   'zoom'	=> 'detail');

// shipping charge adjustment factors by destination zone: $listShipListDesc['US'] = 'United States'; $listShipListDesc['CA'] = 'Canada'; $listShipListDesc['INT'] = 'International'; $listPkgFactors['US'] = 1.0; $listItmFactors['US'] = 1.0; $listPkgFactors['CA'] = 2.0; $listItmFactors['CA'] = 2.0; $listPkgFactors['INT'] = 4.0; $listItmFactors['INT'] = 4.0; // The above is just until we have something more exact and dynamic

$intCallDepth = 0;

// CALCULATED GLOBALS $fpTools = '/tools'; $fpPages = ; $fwpAbsPages = 'http://'.KS_PAGE_SERVER.$fpPages; $fwpAbsTools = 'http://'.KS_TOOLS_SERVER.$fpTools; $fwpCart = $fwpAbsPages.'/cart/'; $strCurServer = $_ENV['SERVER_NAME'];

// SET UP DEPENDENT VALUES /* if ($strCurServer != KS_TOOLS_SERVER) {

 $fpTools = $fwpAbsTools;
 $fpPages = $fwpAbsPages;

}

/

$fwpLogo = $fpTools.'/img/logos/v/';

class clsVbzData extends clsDatabase {

 private $objPages;

 public function __construct($iSpec) {
   global $objDataMgr;

   parent::__construct($iSpec);
   $objDataMgr = new clsDataMgr($this,ksTbl_cache_tables,ksTbl_cache_procs,ksTbl_cache_flow,ksTbl_cache_log);
   $this->Open();
 }

// generic object-creation function

 protected function Make($iName) {
   if (!isset($this->$iName)) {
     $this->$iName = new $iName($this);
   }
   return $this->$iName;
 }

// table-specific functions

 public function Pages() {
   return $this->Make('clsCatPages');
 }
 public function Suppliers() {
   return $this->Make('clsSuppliers');
 }
 public function Depts() {
   return $this->Make('clsDepts');
 }
 public function Titles() {
   return $this->Make('clsTitles');
 }
 public function TitlesExt() {
   return $this->Make('clsTitlesExt');
 }
 public function Items() {
   return $this->Make('clsItems');
 }
 public function Items_Stock() {
   return $this->Make('clsItems_Stock');
 }
 public function ItTyps() {
   return $this->Make('clsItTyps');
 }
 public function ItOpts() {
   return $this->Make('clsItOpts');
 }
 public function ShipCosts() {
   return $this->Make('clsShipCosts');
 }
 public function Images() {
   return $this->Make('clsImages');
 }
 public function StkItems() {
   return $this->Make('clsStkItems');
 }
 public function Topics() {
   return $this->Make('clsTopics');
 }
 public function Events() {
   return $this->Make('clsEvents');
 }
 public function LogEvent($iWhere,$iParams,$iDescr,$iCode,$iIsError,$iIsSevere) {
   return $this->Events()->LogEvent($iWhere,$iParams,$iDescr,$iCode,$iIsError,$iIsSevere);
 }

// Page output routines

 public function SectionHdr($iTitle) {

$out = '

'.$iTitle.'

';

   return $out;
 }
 public function ShowTitles($iHdrText,$iList,$objNoImgSect) {
   $cntImgs = 0;
   $outImgs = ;
   foreach ($iList as $i => $objTitleData) {
     $objTitle = $this->Titles()->GetItem($objTitleData->ID);
     $objImgs = $objTitle->ListImages('th');
     $currMinPrice = $objTitleData->currMinPrice;
     $currMaxPrice = $objTitleData->currMaxPrice;
     $strPrice = DataCurr($currMinPrice);
     if ($currMinPrice != $currMaxPrice) {
       $strPrice .= '-'.DataCurr($currMaxPrice);
     }
     assert('is_resource($objImgs->Res)');
     if ($objImgs->RowCount()) {
       $cntImgs++;

$strCatNum = $objTitleData->CatNum;

       $strTitleTag = '"'.$objTitle->Name.'" ('.$strCatNum.')';
       $strTitleLink = $objTitle->Link();
       while ($objImgs->NextRow()) {
         $strImgTag = $strTitleTag.' - '.$strPrice;

$qtyStk = $objTitleData->qtyForSale;

         if ($qtyStk) {
           $strImgTag .= ' - '.$qtyStk.' in stock';
         }
         $outImgs .= $strTitleLink.'<img class="thumb" src="'.KWP_IMG_MERCH.'/'.$objImgs->Spec.'" title="'.$strImgTag.'"></a>';
       }
     } else {
       if (!$objNoImgSect->inTbl) {
         $objNoImgSect->StartTable('titles without images:');

$objNoImgSect->AddText('Cat. #TitlePrice
Rangeto
orderstatus');

       }
       $objNoImgSect->RowStart();
       $objNoImgSect->ColAdd(''.$objTitleData->CatNum.'');
       $objNoImgSect->ColAdd($objTitle->Name);
       $objNoImgSect->ColAdd($strPrice);
       $objNoImgSect->ColAdd('['.$objTitle->Link().'order</a>]');
       $qtyStk = $objTitleData->qtyForSale;
       if ($qtyStk) {
         $strStock = ''.$qtyStk.' in stock';
         $objNoImgSect->ColAdd($strStock);
         if ($objTitleData->cntInPrint == 0) {
           $objNoImgSect->ColAdd('OUT OF PRINT!');
         }
       } else {
         $objNoImgSect->ColAdd('<a title="explanation..." href="'.KWP_WIKI.'Available_but_not_in_stock">available, not in stock</a>');

// Debugging: // $objNoImgSect->ColAdd('ID_Title='.$objTitle->ID.' ID_ItTyp='.$objTitle->idItTyp);

       }
       $objNoImgSect->RowStop();
     }
   }
   $out = ;
   if ($cntImgs) {
     $out .= $this->SectionHdr($iHdrText);
     $out .= $outImgs;
   }
   return $out;
 }

}

class clsList {

 public $List;

 public function Add($iName, $iValue=NULL) {
   $objItem = new clsListItem($iName,$iValue);
   $this->List[] = $objItem;
   return $objItem;
 }
 public function Output($iPfx, $iSep, $iSfx) {
   $out = NULL;
   if (is_array($this->List)) {
     foreach ($this->List as $objItem) {
       if (is_null($objItem->value)) {
         $out .= $iPfx.$iSep.$objItem->name.$iSfx;
       } else {
         $out .= $iPfx.$objItem->name.$iSep.$objItem->value.$iSfx;
       }
     }
   }
   return $out;
 }

} class clsListItem {

 public $name;
 public $value;

 public function __construct($iName, $iValue=NULL) {
   $this->name = $iName;
   $this->value = $iValue;
 }

}

/* ===================

 CLASS: clsPage
 PURPOSE: Handles display of different page types

/

class clsPage extends clsVbzData { // query

 protected $strReq;	// requested page

// page definition

 protected $strName;	// short title: {item name} (goes into html title, prefixed with store name)
 protected $strTitle;	// longer, descriptive title: {"item name" by Supplier} (goes at top of page)
 protected $strSheet;	// name of style sheet to use (without the .css)
 protected $strWikiPg;	// name of wiki page to embed, if any (blank = suppress embedding)
 protected $strTitleContext;	// context of short title, in HTML: {Supplier: Department:} (goes above title, in small print)
 protected $strHdrXtra;	// any extra stuff (HTML) for the header
 protected $strSideXtra;	// any extra stuff for the sidebar
 protected $lstTop;	// stuff listed at the top of the sidebar

// calculated fields

 protected $strCalcTitle;
 protected $strContText;

// flags set by wiki contents

 protected $hideImgs;

 public function __construct($iSpec) {
   parent::__construct($iSpec);
   $this->lstTop = new clsList();
 }

 public function GetQuery() {

// ACTION: Retrieves request from URL and parses it

   if (isset($_SERVER['PATH_INFO'])) {

$strReq = $_SERVER['PATH_INFO'];

   } else {

$strReq = ;

   }
   $this->strReq = $strReq;

// $pathinfo = $_SERVER['REQUEST_URI'];

   if (strrpos($strReq,'/')+1 < strlen($strReq)) {
     $strRedir = KWP_CAT_REL.substr($strReq,1).'/';
     header('Location: '.$strRedir);
     exit;	// retry with new URL
   }
   $this->ParseQuery();
 }
 public function ParseQuery() {

// This is essentially an abstract function // Define any additional parsing of the query (store member vars etc.)

// global $objFactory;

// $strReq = $this->strReq;

// $this->objCatPage = $objFactory->Pages()->GetItem_byKey($strReq); //print 'REQ='.$strReq.' ABBR='.$this->objCatPage->AB;

// DIFFERENT TYPES OF PAGES

 protected function DoNotFound() {

// $this->Setup(,'Unknown Title','unknown title in catalog','browse','Tomb of the...');

   $this->strWikiPg	= ;
   $this->strTitle	= 'Unknown Page';
   $this->strName	= 'unknown title in catalog';
   $this->strTitleContext	= 'Tomb of the...';
   $this->strHdrXtra	= ;

$this->strSideXtra = '

Cat #: '.$this->strReq; } // UTILITY protected function AddText($iText) { $this->strContText .= $iText; } // PAGE COMPONENTS // -- HEADER COMPONENTS protected function DoPreamble() {

Framework

$this->DoHeader(); $this->DoSidebar(); $this->DoWikiContent(); } protected function DoPostamble() { global $didPage,$fltStart; echo '

';

   $this->DoSepBar();

echo '

';
$fltExecTime = microtime(true)-$fltStart; $dat = getrusage(); $fltUserTime = $dat["ru_utime.tv_usec"]/1000000; $strServer = $_SERVER['SERVER_SOFTWARE']; echo $strServer.' .. '; echo 'PHP '.phpversion().' .. Generated in '.$fltUserTime.' seconds (script execution '.$fltExecTime.' sec.) .. '; $strWikiPg = $this->strWikiPg; if ($strWikiPg) {

echo 'wiki: <a href="'.KWP_WIKI.kEmbeddedPagePrefix.$this->strWikiPg.'">'.$strWikiPg.'</a> .. ';

} echo date('Y-m-d H:i:s');
echo '

'; echo '

</body></html>';

   $didPage = true;
 }
 private function DoWikiContent() {

WIKI CONTENTS
$txtPage = GetEmbedPage('cat');

   if (KF_USE_WIKI) {
     $txtWiki = GetWikiPage($this->strWikiPg);
     if ($txtWiki) {
       if (strpos($txtWiki,'__NOIMG__') != -1) {
         $txtWiki = str_replace('__NOIMG__',,$txtWiki);
         $this->hideImgs = true;
       }
     }
     if ($txtWiki) {

// print ''.$txtPage.'
';

echo '

'.$txtWiki.'

';

     }
   }
 }
 protected function DoSidebar() {
   global $fpTools,$objDataMgr;

// TO DO: these should be pulled from the [stats] table if ($objDataMgr->dtNewest) {

   $timeSidebarBuild=$objDataMgr->dtNewest;

} else {

   $timeSidebarBuild = NULL;

} $statsQtyTitlesAvail = 2245; $statsQtyStockPieces = 1395; $statsQtyStockItems = 753; $statsQtyArtists = 136; $statsQtyTopics = 1048; //---------

echo '

';

?>

';

 }
 private function DoSepBar() {
   global $fpTools;

   echo '<img src="'.$fpTools.'/img/bg/hlines/" alt="-----" width="100%">';
 }
 private function ToolbarItem($iURL,$iIcon,$iTitle,$iAlt) {
   global $fpTools;
   return '<a href="'.$iURL.'"><img border=0 src="'.$fpTools.'/img/icons/'.$iIcon.'.050pxh.png" title="'.$iTitle.'" alt="'.$iAlt.'"></a>';
 }
 protected function DoToolbar() {
   global $fpPages,$fwpCart;

   echo $this->ToolbarItem($fpPages.'/','home',KS_STORE_NAME.' home page','home page');
   echo $this->ToolbarItem($fpPages.'/search/','search','search page','search page');
   echo $this->ToolbarItem($fwpCart,'cart','shopping cart','shopping cart');
   echo $this->ToolbarItem(KWP_WIKI.'help','help','help!','help');
 }

// -- HEADER

 protected function DoHeader() {
   global $fpTools, $fwpLogo;

   $strWikiPg = $this->strWikiPg;
   $this->strCalcTitle = KS_STORE_NAME.' - '.$this->strName;
   $htmlHead = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">';
   $htmlHead .= ''.$this->strCalcTitle.'';
    if ($this->strSheet) {
      $htmlHead .= '';
    }
# remove any quotes from $pageName:
    $htmlName = str_replace('"','"',$this->strName);
    if ($htmlName) {
      $htmlName = ': '.$htmlName;
    }
    $htmlHead .= '';
    $htmlHead .= '';
    echo $htmlHead;
?>
';
    echo '';
// === LEFT HEADER: Title ===
    echo '';
// === END LEFT HEADER ===

// === RIGHT HEADER: nav icons ===
    echo '';
// === END RIGHT HEADER ===
?>
';
    echo '';
    if ($this->strTitleContext) {
      echo ''.KS_STORE_NAME.': '.$this->strTitleContext.'
';
    }
    echo ''.$this->strTitle.' ';
    $this->DoToolbar();
    echo '


strReq;
    $this->objCatPage = $this->Pages()->GetItem_byKey($strReq);

//print 'REQ='.$strReq.' ABBR='.$this->objCatPage->AB;
  }

  public function DoRequest() {
    $doRawHTML = FALSE;
    $this->strSheet	= 'browse';	// default
    if ($this->strReq) {
      if (is_object($this->objCatPage)) {
        switch ($this->objCatPage->Type) {
         case 'S':
          $this->DoCatSupp();
          break;
         case 'D':
          $this->DoCatDept();
          break;
         case 'T':
          $this->DoCatTitle();
          break;
         case 'I':
          $doRawHTML = TRUE;
          $this->DoCatImage();
          break;
        }
      } else {
        $this->DoNotFound();
      }
    } else {
      $this->DoCatHome();
    }
    if ($doRawHTML) {
      echo $this->strContText;
    } else {
      $this->DoPreamble();	// everything before the contents
      echo $this->strContText;
      $this->DoPostamble();	// everything after the contents
    }
  }
// SIDEBAR INFO for different types of pages
  private function DoCatIndicia() {
    $this->lstTop->Add('Section','by supplier');
  }
  private function DoSuppIndicia($iSupp,$isFinal=true) {
    $this->DoCatIndicia();
    if ($isFinal) {
      $this->lstTop->Add('Supplier',$iSupp->Name);
      $this->lstTop->Add('more info');
    } else {
      $this->lstTop->Add('Supplier',$iSupp->Link());
    }
  }
  private function DoDeptIndicia($iDept,$isFinal=true) {
    $this->DoSuppIndicia($iDept->Supplier(),false);
    if ($isFinal) {
      $this->lstTop->Add('Dept.',$iDept->Name);
    } else {
      $this->lstTop->Add('Dept.',$iDept->LinkName());
    }
  }
  private function DoTitleIndicia($iTitle) {
    $this->DoDeptIndicia($iTitle->Dept(),false);
    $this->lstTop->Add('Title',$iTitle->Name);
    $this->lstTop->Add(' - catalog #',$iTitle->CatNum());
  }


  private function DoCatHome() {
//    $objSuppTbl = VbzClasses::Suppliers();
//    $this->Setup('cat','Catalog Home','Catalog main page','browse','hello and welcome to the...');
    $this->DoCatIndicia();
    $this->strWikiPg	= 'cat';
    $this->strTitle	= 'Catalog Home';
    $this->strName	= 'Catalog main page';
    $this->strTitleContext	= 'hello and welcome to the...';
    $this->AddText($this->Suppliers()->DoHomePage());
  }
  private function DoCatSupp() {
    CallEnter($this,__LINE__,'clsPage.DoCatSupp()');

//    $objSuppTbl = VbzClasses::Suppliers();
    $objSuppTbl = $this->Suppliers();
    $objSupp = $objSuppTbl->GetItem($this->objCatPage->ID_Row);
    assert('is_object($objSupp)');
    $strSuppName = $objSupp->Name;

    $this->DoSuppIndicia($objSupp);
    $this->strWikiPg	= 'supp:'.strtoupper($objSupp->CatKey);
    $this->strTitle	= $strSuppName;
    $this->strName	= 'listing for '.$strSuppName;
    $this->strTitleContext	= 'Suppliers: '.$strSuppName.':';
    $this->AddText($objSupp->DoPage());

    CallExit('clsPage.DoCatSupp()');
  }
  private function DoCatDept() {
    CallEnter($this,__LINE__,'clsPage.DoCatDept()');

//    $objDeptTbl = VbzClasses::Depts();
    $objDeptTbl = $this->Depts();
    $objDept = $objDeptTbl->GetItem($this->objCatPage->ID_Row);
    assert('is_object($objDept)');
    $objSupp = $objDept->Supplier();
    assert('is_object($objSupp)');
    $strDeptName = $objDept->Name;
    $strSuppName = $objSupp->Name;
    $strDeptLink = $objDept->LinkName();
    $strSuppLink = $objSupp->Link();

    $this->DoDeptIndicia($objDept);
    $this->strWikiPg	= 'dept:'.strtoupper($objDept->PageKey);

    $this->strTitle	= $strSuppName;
    $this->strName	= $strDeptName.' dept. of '.$strSuppName;
    $this->strTitleContext	= 'items supplied by '.$strSuppLink.'\'s '.$strDeptName.' department:';
    $this->AddText($objDept->DoPage());
    CallExit('clsPage.DoCatDept()');
  }
  private function DoCatTitle() {
    CallEnter($this,__LINE__,'clsPage.DoCatTitle()');

    $strPageKey = $this->objCatPage->Path;
//    $objTitleTbl = VbzClasses::Titles();
    $objTitleTbl = $this->Titles();

    $objTitle = $objTitleTbl->GetItem($this->objCatPage->ID_Row);
    assert('is_object($objTitle)');
    $objDept = $objTitle->Dept();
    assert('is_object($objDept)');
    $objSupp = $objDept->Supplier();
    assert('is_object($objSupp)');
    $strTitleName = $objTitle->Name;

    $this->DoTitleIndicia($objTitle);

//    $this->strAbbr	= 'title:'.strtoupper($strCatNum);
    $this->strWikiPg	= 'title:'.$objTitle->CatNum();
//print 'ABBR='.$this->strAbbr;
    $this->strTitle	= $strTitleName;
    $this->strName	= $strPageKey.' "'.$strTitleName.'" from '.$objSupp->Name;
    $this->strTitleContext 	= 
      'items supplied by '.$objSupp->Link().'\'s '.
      $objDept->LinkName().' department:';
    $objTitle->hideImgs = $this->hideImgs;
    $this->AddText($objTitle->DoPage());
    CallExit('clsPage.DoCatTitle()');
  }
  private function DoCatImage() {
    CallEnter($this,__LINE__,'clsPage.DoCatImage()');
//    $objImageTbl = VbzClasses::Images();
    $objImageTbl = $this->Images();
    $objImage = $objImageTbl->GetItem($this->objCatPage->ID_Row);
    $objImage->DoPage();
    CallExit('clsPage.DoCatImage()');
  }
}

class clsPageTopic extends clsPage {
  public function DoRequest() {
    $this->strSheet	= 'browse';	// default
    $strReq = $this->strReq;
    if (is_numeric($strReq)) {
      $idTopic = (int)$strReq;
      $objTopic = $this->Topics()->GetItem($idTopic);
      $this->strWikiPg	= 'topic.'.$objTopic->WebName();
      $this->strTitle	= 'Topic Index';
      $this->strName	= 'catalog topic index';
      $this->AddText($objTopic->DoPage());
    } else {
      $this->strWikiPg	= 'topics';
      $this->strTitle	= 'Topic Index';
      $this->strName	= 'catalog topic index';
      $this->AddText($this->Topics()->DoIndex());
    }
    $this->DoPreamble();	// everything before the contents
    echo ''.$this->strContText.'';
    $this->DoPostamble();	// everything after the contents
  }
}

class clsPageOutput {
  public $out;
  private $isOdd;
  public $inTbl;

  function __construct() {
    $this->out = '';
    $this->isOdd = false;
    $this->inTbl = 0;
  }
  function Clear() {
    $this->out = '';
  }
  function AddText($iText) {
    $this->out .= $iText;
  }
  function SectionHdr($iTitle) {
    $this->out .= ''.$iTitle.'';
    return $this->out;
  }
  function StartTable($iTitle) {
    if ($iTitle) {
      $this->SectionHdr($iTitle);
      $this->out .= '';
      $this->inTbl++;
    }
  }
  function RowStart($iClass='') {
    if ($iClass) {
      $this->out .= '';
    } else {
      $this->out .= '';
    }
  }
  function RowStop() {
    $this->out .= '';
    $this->isOdd = !$this->isOdd;
  }
  function ColAdd($iText) {
    if ($this->isOdd) {
      $cellOpen = '';
  }
  function EndTable() {
    if ($this->inTbl) {
      $this->out .= '
';
    } else {
      $cellOpen = ' ';
    }
    $this->out .= $cellOpen.$iText.'';
      $this->inTbl--;
    }
    return $this->out;
  }
  function ShowImgUnavail() {
    $this->out .= 'No Images
Available
for this item
:-(';
    return $this->out;
  }
}

/* ===========================
 *** CATALOG DATA CLASSES ***
*/
class clsVbzTable extends clsTable {
  protected function Touch($iCaller) {
    global $objDataMgr;

    $objDataMgr->Update_byName($this->Name(),$iCaller);
  }
}

class clsCatPages extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_pages');
      $this->KeyName('AB');
      $this->ClassSng('clsCatPage');
  }
/*
  protected function _newItem() {
    return new clsCatPage($this);
  }
*/
  public function GetItem_byKey($iKey) {

    CallEnter($this,__LINE__,__CLASS__.'.GetItem_byKey('.$iKey.')');
    $strKey = trim($iKey,'/');
    $strKey = str_replace('-','/',$strKey);
    $sqlCatKey = $this->objDB->SafeParam($strKey);
    $this->Touch('clsCatPages.GetItem_byKey('.$iKey.')');
    $objItem = $this->GetData('Path="'.$sqlCatKey.'"');
//    $objRec = $this->objDB->Query($sql);
    assert('is_object($objItem)');
    if ($objItem->NextRow()) {
      DumpValue('objItem NumRows',$objItem->hasRows());
      CallExit('clsCatPages.GetItem_byKey('.$iKey.') -> Page '.$objItem->AB);
    } else {
      CallExit('clsCatPages.GetItem_byKey('.$iKey.') -> no data');
    }
    return $objItem;
  }
}

class clsCatPage extends clsDataSet {
// == STATIC SECTION
//  const cksTblName = 'cat_pages';
//  const cksIDName = 'AB';

}

class clsSuppliers extends clsVbzTable {
// ==== STATIC SECTION

// ==== DYNAMIC SECTION
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_supp');
      $this->KeyName('ID');
      $this->ClassSng('clsSupplier');
  }
  public function GetItem_byKey($iKey) {
    CallEnter($this,__LINE__,__CLASS__.'.GetItem_byKey('.$iKey.')');
    $sqlCatKey = $this->objDB->SafeParam($iKey);
    $objItem = $this->GetData('CatKey="'.$sqlCatKey.'"');
    CallExit(__CLASS__.'.GetItem_byKey('.$iKey.') -> new supplier');
    return $objItem;
  }
  public function DoHomePage() {
    global $objDataMgr;

    $objDataMgr->Update_byName('_supplier_ittyps','clsSuppliers.DoHomePage()');
    $sql = 'SELECT * FROM _supplier_ittyps ORDER BY Name, ItemCount DESC';
    $objRec = $this->objDB->DataSet($sql);
    $out = '';
    if ($objRec->hasRows()) {
      $objTbl = new clsPageOutput;
      $objTbl->StartTable('Suppliers');
      $strKeyLast = $outCell = '';
      while ($objRec->NextRow()) {
        $strKey = $objRec->CatKey;
        if ($strKey != $strKeyLast) {
          $strKeyLast = $strKey;
          $strKeyLink = strtolower($strKey).'/';
          if ($outCell) {
            $objTbl->ColAdd($outCell);
            $objTbl->RowStop();
            $outCell = '';
          }
          $objTbl->RowStart();
          $objTbl->ColAdd(''.$objRec->Name.'');
          $isFirst = true;
        }
        if ($isFirst) {
          $isFirst = false;
        } else {
          $outCell .= ', ';
        }
	$strItType = $objRec->ItemType;
	if ($strItType == '') {
	    $strItType = '?id'.$objRec->ID;
	}
        $outCell .= ' '.$objRec->ItemCount.' '.$strItType;
      }
      $objTbl->ColAdd($outCell);
      $objTbl->RowStop();
      $out .= $objTbl->EndTable();
    }
    return $out;
  }
}

class clsSupplier extends clsDataSet {
  public function DoPage() {
    global $objDataMgr;

    CallEnter($this,__LINE__,'clsSupplier.DoPage()');
    $out = '';
    assert('$this->ID');
// first, check how many departments supplier has:
    $objDeptTbl = $this->objDB->Depts();
    $objDepts = $objDeptTbl->GetData('isActive AND (ID_Supplier='.$this->ID.')','clsDept','Sort');

    if ($objDepts->RowCount() == 1) {
// if there's only one department, display that instead of a department listing
      $out = $objDepts->DoPage();
    } else {
      $objDataMgr->Update_byName('_supplier_ittyps','clsSupplier.DoPage() for '.$this->CatKey);
      $sql = 'SELECT * FROM _supplier_ittyps WHERE ID='.$this->ID.' ORDER BY Name, ItemCount DESC';
      $objItTyps = $this->objDB->DataSet($sql,'clsItTyp');
      $isFirst = true;
      $out .= '';
      while ($objItTyps->NextRow()) {
        if ($isFirst) {
          $isFirst = false;
        } else {
          $out .= ', ';
        }
        $out .= ' '.$objItTyps->ItemCount.' '.$objItTyps->ItemType;
      }
      $out .= '';
      $out .= $objDeptTbl->DoListing_forSupp($this->ID);
    }

    CallExit('clsSupplier.DoPage()');
    return $out;
  }
  public function Link() {
    $out = ''.$this->Name.'';
    return $out;
  }
  public function URL() {
    return KWP_CAT_REL.strtolower($this->CatKey).'/';
  }
}
class clsDepts extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_depts');
      $this->KeyName('ID');
      $this->ClassSng('clsDept');
  }
  protected function _newItem() {
    CallStep('clsDepts._newItem()');
    return new clsDept($this);
  }
  public function DoListing_forSupp($iSuppID) {
    CallEnter($this,__LINE__,'clsDepts.DoListing_forSupp('.$iSuppID.')');
    
    $out = 'Departments:';
    $objDepts = $this->GetData('ID_Supplier='.$iSuppID,'clsDept');
    $isFirst = true;

    $isOdd = FALSE;
    while ($objDepts->NextRow()) {
      $outDept = $objDepts->DoListing();
      if ($outDept) {	// only show departments with something in them
        if ($isOdd) {
          $cellOpen = ''.$cellOpen.''.$objDepts->Name.'';
        $isOdd = !$isOdd;
        $out .= $cellOpen.$outDept.'';
      }
    }
    $out .= '';
        } else {
          $cellOpen = ' ';
        }
        $keyDept = $objDepts->PageKey();
        $out .= '
';
    CallExit('clsDepts.DoListing_forSupp()');
    return $out;
/**/
  }
}
class clsDept extends clsDataSet {
// object cache
  private $objSupp;

  public function Supplier() {
    if (is_object($this->objSupp)) {
      return $this->objSupp;
    } else {
      $idSupp = $this->ID_Supplier;
      if ($idSupp) {
        $this->objSupp = $this->objDB->Suppliers()->GetItem($idSupp);
        return $this->objSupp;
      } else {
        return NULL;
      }
    }
  }
  public function PageKey() {
    if ($this->PageKey) {
      return $this->PageKey;
    } else {
      return $this->CatKey;
    }
  }
  protected function GetDeptData() {
    global $objDataMgr;

    $objDataMgr->Update_byName('_dept_ittyps','clsDept.DoListing() for ID='.$this->ID);
    $sql = 'SELECT * FROM qryItTypsDepts_ItTyps WHERE (ID_Dept='.$this->ID.') ORDER BY cntInPrint DESC';
    $objItTyps = $this->objDB->DataSet($sql,'clsItTyp');
    return $objItTyps;
  }
  public function DoListing() {
// PURPOSE: Print this department's information as part of department list

    assert('$this->ID');
    $objItTyps = $this->GetDeptData();
    $isFirst = true;
    $out = '';
    while ($objItTyps->NextRow()) {
      if ($isFirst) {
        $isFirst = false;
      } else {
        $out .= ', ';
      }
      $cntInPrint = $objItTyps->cntInPrint;
      $qtyInStock = $objItTyps->qtyForSale;
// TO FIX: This is wrong. Need cntForSale field
      $cntAvail = $cntInPrint + $qtyInStock;
      if ($cntAvail == 1) {
        $strName = $objItTyps->ItTyp_Sng;
      } else {
        $strName = $objItTyps->ItTyp_Plr;
      }
      $out .= ' '.$cntAvail.' '.$strName;
    }
    return $out;
  }
  public function DoPage() {
// PURPOSE: Print page for current department
// ACTION:
//	* Iterates through item types available for this department.
//	* For each item type, prints header and then a list of titles.
    global $objDataMgr;

    assert('$this->ID');
    $out = '';
    $idDept = $this->ID;
    $objSection = new clsPageOutput();
    $objItTyps = $this->GetDeptData();
    $objTitles = new clsTitleExt($this->objDB);
    $objNoImgSect = new clsPageOutput();
    $cntSections = 0;
    while ($objItTyps->NextRow()) {
      $cntInPrint = $objItTyps->cntInPrint;
      $qtyInStock = $objItTyps->qtyForSale;
// TO FIX: This is wrong. Need cntForSale field
      $cntAvail = $cntInPrint + $qtyInStock;
      if ($cntAvail) {
        $cntSections++;
        $idItTyp = $objItTyps->ID_ItTyp;
//        $objSection->SectionHdr();
//        $sql = 'SELECT *, ID_Title AS ID, TitleName AS Name FROM _title_ittyps WHERE ((cntForSale) AND (ID_ItTyp='.$idItTyp.') AND (ID_Dept='.$idDept.'));';
        $sql = 'SELECT t.ID_Title AS ID, t.* FROM qryTitles_ItTyps_Titles AS t WHERE (ID_ItTyp='.$idItTyp.') AND (ID_Dept='.$idDept.');';
//        $objDataMgr->Update_byName('_title_ittyps','clsDept.DoPage() for ID_ItTyp='.$idItTyp.', ID_Dept='.$idDept);
        $objTitles->Query($sql);
//        $idTitle = $objTitles->GetValue('ID_Title');
//        $objTitles->ID = $idTitle;
	
        if ($objTitles->hasRows()) {
          while ($objTitles->NextRow()) {
	    // make a copy with current row's data
            $objTitle = new clsDataSet(NULL,$objTitles->Res,$objTitles->Row);
	    //$objTitle = clone $objTitles;
            $lstTitles[] = $objTitle;	// save it in a list
          }
          assert('is_array($lstTitles)');

// We've generated the list of titles for this section; now display the section header and titles:

//          $out .= $objSection->ShowTitles($objItTyps->ItTypNamePlr.':',$lstTitles,$objNoImgSect);
//          $out .= $objSection->ShowTitles($objItTyps->ItTyp_Plr.':',$lstTitles,$objNoImgSect);
          $out .= $this->objDB->ShowTitles($objItTyps->ItTyp_Plr.':',$lstTitles,$objNoImgSect);
        } else {
	  echo 'ERROR: No titles found! SQL='.$sql;
        }
        unset($lstTitles);
        $objSection->Clear();
      } else {
        $out .= 'Small coding error: this line should never happen.'; // TO DO: log an error
      }
    }
    if (!$cntSections) {
        $out .= 'This department appears to have been emptied of all leftover stock. (Eventually there will be a way to see what items used to be here.)';
    }
    if ($objNoImgSect->inTbl) {
      $objNoImgSect->EndTable();
      $objSection->AddText($objNoImgSect->out);
      $objSection->EndTable();
      $out .= $objSection->out;
    }
    return $out;
  }
  public function LinkName() {
    $strURL = $this->Supplier()->URL();
    if ($this->PageKey) {
      $strURL .= strtolower($this->PageKey).'/';
    }
//    return ''.$this->Name.'';
    return ''.$this->Name.'';
  }
}

class clsTitles extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_titles');
      $this->KeyName('ID');
      $this->ClassSng('clsTitle');
  }
/*
 ACTION: Finds a Title from a CatNum and returns an object for it
 TO DO: Rename to Get_byCatNum()
*/
  public function GetItem_byCatNum($iCatNum) {
    global $objDataMgr;

    CallEnter($this,__LINE__,__CLASS__.'.GetItem_byCatNum('.$iCatNum.')');
    assert('is_object($this->objDB)');
    $sqlCatNum = strtoupper(str_replace('.','-',$iCatNum));
    $sqlCatNum = $this->objDB->SafeParam($sqlCatNum);
    $sql = 'SELECT * FROM v_titles WHERE CatNum="'.$sqlCatNum.'"';
    $objTitle = new clsTitleExt($this);
    // make sure _titles (part of v_titles) is up-to-date
    //$objDataMgr->Update_byName('_titles','GetItem_byCatNum('.$iCatNum.')');
    $objDataMgr->Update_byName('_depts','GetItem_byCatNum('.$iCatNum.')');
    // get data from v_titles
    $objTitle->Query($sql);
    $idTitle = $objTitle->ID;
    assert('is_resource($objTitle->Res)');
    if ($objTitle->RowCount()) {
      assert('$idTitle');
      $sql = 'SELECT * FROM titles WHERE ID='.$idTitle;
      $objTitle->dontLoadBasic = true;
      $objTitle->Query($sql);
      CallExit('clsTitles.GetItem_byCatNum() -> ok');
      return $objTitle;
    } else {
      CallExit('clsTitles.GetItem_byCatNum() -> NULL');
      return NULL;
    }
  }
}
class clsTitle extends clsDataSet {
// == STATIC SECTION ==
  const cksTblName = 'cat_titles';
  const cksIDName = 'ID';

  public static function GetItem($iID) {
    $sql = 'SELECT * FROM '.self::cksTblName.' WHERE '.self::cksIDName.'="'.$iID.'"';
    $objItem = new self;
    $objItem->Query($sql);
    return $objItem;
  }

// == DYNAMIC SECTION ==
// object cache
  private $objDept;
// options
  public $hideImgs;

  public function Dept() {
    if (is_object($this->objDept)) {
      return $this->objDept;
    } else {
      $idDept = $this->ID_Dept;
      if ($idDept) {
        $objDept = $this->objDB->Depts()->GetItem($idDept);
        $this->objDept = $objDept;
        assert('is_object($objDept)');
        return $objDept;
      } else {
        return NULL;
      }
    }
  }
  public function IsActive() {
      if (is_null($this->DateUnavail)) {
	  $out = TRUE;
      } else {
	  $out = ($this->DateUnavail > time());
      }
      return $out;
  }
  public function DoPage() {
    global $objDataMgr;

    $idTitle = $this->ID;
    assert('$idTitle');
    $objSection = new clsPageOutput();

// show small-size images
    if (!$this->hideImgs) {
      $objImgs = $this->ListImages('sm');
      if ($objImgs->hasRows()) {
        while ($objImgs->NextRow()) {
          $strImgTag = $objImgs->AttrDispl;
          $urlRel = $objImgs->Spec;
          $idImg = $objImgs->ID;
          $strImg = 'ImgForSize('big');
          if (is_object($objImgBig)) {
            if ($objImgBig->hasRow()) {
              $strImg = $objImgBig->Href().$strImg.'';
            }
          }
          $objSection->AddText($strImg);
        }
      } else {
        $objSection->ShowImgUnavail();
      }
    }

// now list available items as table
    $sql = 'SELECT * FROM qryTitles_ItTyps_ItTyps WHERE (ID_Title='.$idTitle.') ORDER BY ItTyp_Sort IS NULL, ItTyp_Sort;';
    $objTypes = $this->objDB->DataSet($sql);
    if ($objTypes->hasRows()) {
      if (KF_CART_ABSOLUTE) {
        $urlCart = KWP_CART_ABS;
      } else {
        $urlCart = KWP_CART_REL;
      }
      $objSection->AddText('');

      $flagDisplayTogether = false;	// hard-coded for now

      while ($objTypes->NextRow()) {
        $idItTyp = $objTypes->ID_ItTyp;
        assert('$idItTyp');
	$sqlFilt = '(ID_Title='.$idTitle.') AND (ID_ItTyp='.$idItTyp.')';
	$sqlSort = 'GrpSort,GrpDescr,ItOpt_Sort';
	$objStk = $this->objDB->Items_Stock();
	$objItems = $objStk->GetData($sqlFilt,'clsItem',$sqlSort);
        $idItType = 0;

        $txtLine = ''.$objTypes->ItTyp_Plr.':';

        if ($flagDisplayTogether) {
// displaying all items in a single listing
          $txtBoth .= $txtLine;
        } else {
// set flags to determine which stock-status sections to show
          $cntInStock = $objTypes->cntStkForSale;
          $cntForSale = $objTypes->cntForSale;
          $cntOutStock = $cntForSale - $cntInStock;

	  $txtInStock = $txtOutStock = '';
          if ($cntInStock > 0) {
            $txtInStock .= $txtLine;
          }
          if ($cntOutStock > 0) {
            $txtOutStock .= $txtLine;
          }
        }

// iterate through items for this type:
        $strGrpLast = '';
        while ($objItems->NextRow()) {
          $strGrp = $objItems->GrpDescr;
	  $qtyStk = $objItems->qtyForSale;
          if ($strGrp != $strGrpLast) {
            $strGrpLast = $strGrp;
            $strGrpCode = $objItems->GrpCode;
            $out = '';
            $out .= ' — '.$strGrp;
            if ($strGrpCode) {
              $out .= ' ('.$strGrpCode.')';
            }
            $out .= '';
            $out .= '';
// this should probably be a subroutine...
            if ($flagDisplayTogether) {
              $txtBoth .= $out;
            } else {
              if ($qtyStk > 0) {
                $txtInStock .= $out;
              } else {
                $txtOutStock .= $out;
              }
            }
          }
          if ($objItems->isForSale) {
            $txtLine = $objItems->Print_TableRow();

            if ($flagDisplayTogether) {
              $txtBoth .= $txtLine;
            } else {
              if ($qtyStk > 0) {
                $txtInStock .= $txtLine;
              } else {
                $txtOutStock .= $txtLine;
              }
            }
          }
        }
      }

// DO the actual display of the accumulated text

      $txtTblOpen = '';
      $txtTblHdr = '';
      $txtTblFtr = '';
      $txtTblShut = 'Option Status Price Order
Qty. list
price
';

      if ($flagDisplayTogether) {
// Display in-stock and backordered items together
        $objSection->AddText($txtTblOpen);
        $objSection->AddText($txtTblHdr);
        $objSection->AddText($txtBoth);
        $objSection->AddText($txtTblFtr);
        $objSection->AddText($txtTblShut);
      } else {
        if ($txtInStock != '') {
          $txtClause = Pluralize($cntInStock,'This item is','These items are');
          $objSection->AddText($txtTblOpen);
          $objSection->AddText(''.$txtClause.' in stock:');
          $objSection->AddText($txtTblHdr);
          $objSection->AddText($txtInStock);
          $objSection->AddText($txtTblFtr);
          $objSection->AddText($txtTblShut);
        }

        if ($txtOutStock != '') {
          if ($txtInStock != '') {
            $objSection->AddText('');
          }
          $txtClause = Pluralize($cntOutStock,'This item is','These items are');
          $objSection->AddText($txtTblOpen);
          $objSection->AddText(''.$txtClause.' not in stock');
          $txtClause = Pluralize($cntOutStock,'it','them');
          $objSection->AddText(', but we can (probably) get '.$txtClause.':');
          $objSection->AddText($txtTblHdr);
          $objSection->AddText($txtOutStock);
          $objSection->AddText($txtTblFtr);
          $objSection->AddText($txtTblShut);
        } /**/
      }
//      $objSection->AddText('');
      $objSection->AddText('');
    } else {
      $objSection->SectionHdr('This title is currently unavailable');
    }
    return $objSection->out;
  }
  public function ListImages($iSize) {
    $sqlFilt = '(ID_Title='.$this->ID.') AND (Ab_Size="'.$iSize.'")';
    $objImgs = $this->objDB->Images()->GetData($sqlFilt,'clsImage','AttrSort');
    return $objImgs;
  }
  public function CatNum($iSep='-') {
    $objDept = $this->Dept();
    $objSupp = $objDept->Supplier();
    $strDeptKey = $objDept->CatKey;
    $strOut = $objSupp->CatKey;
    if ($strDeptKey) {
      $strOut .= $iSep.$strDeptKey;
    }
    $strOut .= $iSep.$this->CatKey;
    return strtoupper($strOut);
  }
  public function URL_part() {
    return strtolower($this->CatNum('/'));
  }
  public function URL() {
    return KWP_CAT_REL.$this->URL_part();
  }
  public function Link() {
    $strURL = $this->URL();
    return '';
  }
  public function LinkName() {
    return $this->Link().$this->Name.'';
  }
  public function LinkName_wt() {
// TO DO: make this more configurable
    $out = '[[vbznet:cat/'.$this->URL_part().'|'.$this->Name.']]';
    return $out;
  }
}
// extended Title data from v_titles
class clsTitlesExt extends clsTitles {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('v_titles');
      $this->KeyName('ID');
  }
  protected function _newItem() {
    CallStep('clsTitlesExt._newItem()');
    return new clsTitleExt($this);
  }
}
// this encapsulates [_titles] instead of [titles]
class clsTitleExt extends clsTitle {
/*
  public $CatNum;
  public $CatWeb;
  public $curMinPrice;
  public $curMaxPrice;
  public $idItTyp;
  public $qtyInStock;
*/
// action flags
  public $dontLoadBasic;
/*
  protected function LoadResults() {
    CallEnter($this,__LINE__,'clsTitleExt.LoadResults()');
    if (!$this->dontLoadBasic) {
      parent::LoadResults();
    }

    $this->CatNum	= $this->GetValue('CatNum');
    $this->CatWeb	= $this->GetValue('CatWeb');
    $this->currMinPrice	= $this->GetValue('currMinPrice');
    $this->currMaxPrice	= $this->GetValue('currMaxPrice');
    $this->idItTyp	= $this->GetValue('ID_ItTyp');
    $this->qtyInStock	= $this->GetValue('qtyInStock');

    CallExit('clsTitle.LoadResults()');
  }
*/
  public function Link() {
    $out = '';
    return $out;
  }
  public function URL() {
    return KWP_CAT_REL.$this->CatWeb.'/';
  }
}
/* -------------------- *\
    TITLE/ITTYP hybrid
\* -------------------- */
class clsTitleIttyp extends clsDataSet {
/*
  public $ID_ItTyp;
  //public $ID_Dept;
  public $cntForSale;
  public $cntInPrint;
  public $cntInStock;
  public $qtyInStock;
  public $ItTypSng;
  public $ItTypPlr;
*/
// object cache
  private $objIttyp;

/*
  protected function LoadResults() {
    CallEnter($this,__LINE__,'clsTitleIttyp.LoadResults()');
    $idItTyp		= $this->GetValue('ID_ItTyp');
    if ($idItTyp != $this->ID_ItTyp) {
      $this->ID_ItTyp	= $this->GetValue('ID_ItTyp');
      $this->objIttyp = NULL;
    }
    $this->ID_Title	= $this->GetValue('ID_Title');
    //$this->ID_Dept	= $this->GetValue('ID_Dept');
    $this->cntForSale	= $this->GetValue('cntForSale');
    $this->cntInPrint	= $this->GetValue('cntInPrint');
    $this->cntInStock	= $this->GetValue('cntInStock');
    $this->qtyInStock	= $this->GetValue('qtyInStock');
    $this->ItTypSng	= $this->GetValue('ItTyp_Sng');
    $this->ItTypPlr	= $this->GetValue('ItTyp_Plr');
    if ($this->ID_ItTyp) { } else {
       echo 'ERROR: ID_ItTyp has no value! data = ';
       DumpArray($this->Row,TRUE);
    }
    CallExit('clsTitleIttyp.LoadResults()');
  }
*/
  public function Ittyp() {
    if (is_null($this->objIttyp)) {
      $this->objIttyp = VbzClasses::ItTyps()->GetItem($this->ID_ItTyp);
    }
    return $this->objIttyp;
  }
}
/* -------------------- *\
    ITEM classes
\* -------------------- */
class clsItems extends clsVbzTable {

  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_items');
      $this->KeyName('ID');
      $this->ClassSng('clsItem');
  }
/*
 ACTION: Finds the Item with the given CatNum, and returns a clsItem object
*/
  public function Get_byCatNum($iCatNum) {
      $sqlCatNum = $this->objDB->SafeParam($iCatNum);
      $objItem = $this->GetData('CatNum="'.$sqlCatNum.'"');
      if ($objItem->HasRows()) {
	  $objItem->NextRow();
	  return $objItem;
      } else {
	  return NULL;
      }
  }
}
/* ===============
 CLASS: clsItem
 NOTE: "in stock" always refers to stock for sale, not stock which has already been purchased
*/
class clsItem extends clsDataSet {
// object cache
  private $objTitle;

  public function Print_TableRow() {
/*
  ASSUMES:
      This item is ForSale, so isForSale = true and (qtyForSale>0 || isInPrint) = true
      This item's data was generated by clsItems_Stock
  TO DO: create a separate clsItem_Stock class and move this method there.
*/
    $qtyInStock = $this->qtyForSale;
    if ($qtyInStock) {
      $strClass = 'inStock';
      $strStock = $qtyInStock.' in stock';
    } else {
      $strClass = 'noStock';
    }
    $out = '';
    $out .= ' '.$this->ItOpt_Descr;
    if ($this->isInPrint) {
      if ($qtyInStock) {
        $strStatus = $strStock.'; more available';
      } else {
        $strStatus = 'available, not in stock';
      }
    } else {
      $strStatus = ''.$strStock.' - out of print!';
    }
    $out .= ''.$strStatus.'';
    $out .= ''.DataCurr($this->PriceSell).'';
    $out .= ''.'';
    if ($this->PriceList) {
      $out .= ''.DataCurr($this->PriceList).'';
    }
    $out .= '';
    return $out;
  }
  public function Title() {
    $doLoad = TRUE;
    if (is_object($this->objTitle)) {
      if ($this->objTitle->ID == $this->ID_Title) {
        $doLoad = FALSE;
      }
    }
    if ($doLoad) {
      $this->objTitle = $this->objDB->Titles()->GetItem($this->ID_Title);
    }
    return $this->objTitle;
  }
  public function ItTyp() {
    $doLoad = TRUE;
    if (is_object($this->objItTyp)) {
      if ($this->objItTyp->ID == $this->ID_ItTyp) {
        $doLoad = FALSE;
      }
    }
    if ($doLoad) {
      $this->objItTyp = $this->objDB->ItTyps()->GetItem($this->ID_ItTyp);
    }
    return $this->objItTyp;
  }
  public function ItOpt() {
    $doLoad = TRUE;
    if (is_object($this->objItOpt)) {
      if ($this->objItOpt->ID == $this->ID_ItOpt) {
        $doLoad = FALSE;
      }
    }
    if ($doLoad) {
      $this->objItOpt = $this->objDB->ItOpts()->GetItem($this->ID_ItOpt);
    }
    return $this->objItOpt;
  }
  public function ShCost() {
    $doLoad = TRUE;
    if (is_object($this->objShCost)) {
      if ($this->objShCost->ID == $this->ID_ShipCost) {
        $doLoad = FALSE;
      }
    }
    if ($doLoad) {
      $this->objShCost = $this->objDB->ShipCosts()->GetItem($this->ID_ShipCost);
    }
    return $this->objShCost;
  }
  public function ShipPriceItem($iZone) {
      global $listItmFactors;
      $this->ShCost();	// get the shipping cost object
      $fltZoneFactor = $listItmFactors[$iZone];
      return $this->objShCost->PerItem * $fltZoneFactor;
  }
  public function ShipPricePkg($iZone) {
      global $listPkgFactors;
      $this->ShCost();	// get the shipping cost object
      $fltZoneFactor = $listPkgFactors[$iZone];
      return $this->objShCost->PerPkg * $fltZoneFactor;
  }
}

/* -------------------- *\
    ITEM TYPE classes
\* -------------------- */
class clsItTyps extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_ittyps');
      $this->KeyName('ID');
      $this->ClassSng('clsItTyp');
  }
}
class clsItTyp extends clsDataSet {
  public function Name($iCount=-1) {
    if ($iCount == -1) {
      $iCount = $this->cntInPrint;
    }
    if ($iCount == 1) {
      return $this->NameSng;
    } else {
      return $this->NamePlr;
    }
  }
}
/* -------------------- *\
    ITEM OPTION classes
\* -------------------- */
class clsItOpts extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_ioptns');
      $this->KeyName('ID');
      $this->ClassSng('clsItOpt');
  }
}
class clsItOpt extends clsDataSet {
}
/* -------------------- *\
    SHIP COST classes
\* -------------------- */
class clsShipCosts extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_ship_cost');
      $this->KeyName('ID');
      $this->ClassSng('clsShipCost');
  }
}
class clsShipCost extends clsDataSet {
}
/* -------------------- *\
    STOCK ITEM classes
\* -------------------- */
// TO DO: explain the difference between clsItems_Stock and clsStkItems
class clsItems_Stock extends clsItems {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('qryCat_Items_Stock');
      $this->KeyName('ID');
  }
}

class clsStkItems extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('stk_items');
      $this->KeyName('ID');
  }
  public function QtyInStock_forItem($iItemID) {
    $sql = 'SELECT SUM(s.Qty) AS Qty FROM stk_items AS s LEFT JOIN stk_bins AS sb ON s.ID_Bin=sb.ID WHERE (s.ID_Item='.$iItemID.') AND (s.WhenRemoved IS NULL) AND (sb.WhenVoided IS NULL) AND (sb.isForSale) GROUP BY s.ID_Item';
// ** TO DO: maybe this can use a view or one of the calculated tables now?

    $objStock = new clsDataItem($this);
    $objStock->Query($sql);
    if ($objStock->NextRow()) {
      assert('is_resource($objStock->Res)');
      if ($objStock->RowCount()) {
        assert('$objStock->RowCount() == 1');
        return $objStock->Qty;
      }
    } else {
      return NULL;
    }
  }
}
/* -------------------- *\
    IMAGE classes
\* -------------------- */
class clsImages extends clsVbzTable {
  public function __construct($iDB) {
    parent::__construct($iDB);
      $this->Name('cat_images');
      $this->KeyName('ID');
      $this->ClassSng('clsImage');
  }
}
class clsImage extends clsDataSet {
// == STATIC SECTION ==
  const cksTblName = 'cat_images';

// == DYNAMIC SECTION ==
// object cache
  private $objTitle;

  public function ImgForSize($iSize) {
// ACTION: Get the image with the same title and attribute but with the given size
    if ($this->AttrFldr) {
      $sqlAttr = '="'.$this->AttrFldr.'"';
    } else {
      $sqlAttr = ' IS NULL';
    }
    $sqlFilt = '(ID_Title='.$this->ID_Title.') AND (AttrFldr'.$sqlAttr.') AND (Ab_Size="'.$iSize.'")';
    $objImgOut = $this->objDB->Images()->GetData($sqlFilt);
    return $objImgOut;
  }
  public function Title() {
    if (!is_object($this->objTitle)) {
	$this->objTitle = $this->objDB->Titles()->GetItem($this->ID_Title);
    }
    return $this->objTitle;
  }
  public function DoPage() {
    global $vbgImgSize;

    $objTitle = $this->Title();
    $strCatNum = $objTitle->CatNum();
    $strTitle = $objTitle->Name;
    $htmlTitle = KS_STORE_NAME.' - '.$strCatNum.' “'.$strTitle.'”';
    echo ''.$htmlTitle.'';
    echo '';
    echo '';
    echo ''.$strTitle.'
'.$strCatNum.' - title ID #'.$this->ID_Title.'';
    echo '';
// show list of available image sizes (except th and sm)

    $objImgs = $this->ListImages_sameAttr();
    $strOut = NULL;
    if ($objImgs->hasRows()) {
      $strImgCount = 0;
      while ($objImgs->NextRow()) {
        $strImgType = $objImgs->Ab_Size;
        if (($strImgType != 'th') && ($strImgType != 'sm')) {
          $strImgCount++;
	  $strDesc = $vbgImgSize[$strImgType];
	  if ($objImgs->ID == $this->ID) {
	      $strImgTag = ''.$strDesc.'';
	  } else {
	      $strImgTag = $objImgs->Href(TRUE).$strDesc.'';
	  }
          if ($strOut) {
            $strOut .= ' .. ';
          }
          $strOut .= $strImgTag;
        }
      }
      if ($strImgCount > 1) {
	echo '';
      }
    }
    $strOut = NULL;

// show list of available images for this title at this size
    $objImgs = $this->ListImages_sameSize();
    if ($objImgs->NextRow()) {
      $strImgCount = 0;
      $strOut .= '';
      if ($objImgs->hasRows()) {
        while ($objImgs->NextRow()) {
          $strImgFldr = $objImgs->AttrFldr;
          $strImgDescr = $objImgs->AttrDispl;
          $strImgCount++;
          if ($strOut) {
            $strOut .= ' .. ';
          }
          if ($objImgs->ID == $this->ID) {
            $strOut .= ''.$strImgDescr.'';
          } else {
            $strOut .= $objImgs->Href(TRUE).$strImgDescr.'';
          }
        }
        if ($strImgCount > 1) {
          echo '';
        }
      }
    }
    echo 'sizes : '.$strOut.' : sizes
views : '.$strOut.' : views';
    echo $objTitle->Link().'ordering page
';
    echo $this->ImgSrc();
    echo '';
 }
 public function ListImages_sameAttr() {
   if ($this->AttrFldr) {
     $sqlFilt = '(ID_Title='.$this->ID_Title.') AND (AttrFldr="'.$this->AttrFldr.'")';
   } else {
     $sqlFilt = '(ID_Title='.$this->ID_Title.')';
   }
   $objImgOut = $this->objDB->Images()->GetData($sqlFilt);

   return $objImgOut;
 }
 public function ListImages_sameSize() {
   $sqlFilt = '(ID_Title='.$this->ID_Title.') AND (Ab_Size="'.$this->Ab_Size.'")';
   $objImgOut = $this->objDB->Images()->GetData($sqlFilt);
   return $objImgOut;
 }
 public function Href($iAbs=false) {
   $strFldrRel = $this->AttrFldr;
   if ($strFldrRel) {
     $strFldrRel .= '-';
   }
   $strFldrRel .= $this->Ab_Size;

   if ($iAbs) {
     $strFldr = $this->Title()->URL().'/'.$strFldrRel;
   } else {
     $strFldr = $strFldrRel;
   }

   return '<a href="'.$strFldr.'/">';
 }
 public function ImgSrc() {
   return '<img src="'.KWP_IMG_MERCH.$this->Spec.'">';
 }

}

/* ------------------ *\

   CATALOG BROWSING

\* ------------------ */ class clsTopics extends clsVbzTable {

 public function __construct($iDB) {
   parent::__construct($iDB);
     $this->Name('brs_topics');
     $this->KeyName('ID');
     $this->ClassSng('clsTopic');
 }
 public function DoIndex() {
   global $objDataMgr;

   CallEnter($this,__LINE__,'clsTopics.DoIndex()');
   $objSection = new clsPageOutput();

   $objTopics = $this->GetData('ID_Parent IS NULL',NULL,'Sort,Name,NameTree');
   while ($objTopics->NextRow()) {
     if ($isFirst) {
       $isFirst = false;
       $objSection->SectionHdr('Root Topics');
     } else {
       $objSection->AddText($objTopics->Name.'
');
     }
   }

   CallExit('clsTopic.DoIndex()');
   return $objSection->out;
 }

} class clsTopic extends clsDataSet { /*

 public $ID_Parent;
 public $Name;
 public $NameTree;
 public $NameFull;
 public $Variants;
 public $Mispeled;

 protected function LoadResults() {
   CallEnter($this,__LINE__,'clsTopic.LoadResults()');
   $this->ID		= $this->GetValue('ID');
   $this->ID_Parent	= $this->GetValue('ID_Parent');
   $this->Name		= $this->GetValue('Name');
   $this->NameTree	= $this->GetValue('NameTree');
   $this->NameFull	= $this->GetValue('NameFull');
   $this->Variants	= $this->GetValue('Variants');
   $this->Mispeled	= $this->GetValue('Mispeled');
   assert('$this->ID');
   CallExit('clsTopic.LoadResults()');
 }

/

 public function DoPage() {
   global $objDataMgr;

   CallEnter($this,__LINE__,'clsTopic.DoPage()');
   assert('$this->ID');
   $objSection = new clsPageOutput();

   $objTitles = $this->objDB->DataSet('SELECT * FROM brs_titles_x_topics WHERE ID_Topic='.$this->ID);
   while ($objTitles->NextRow()) {
     if ($isFirst) {
       $isFirst = false;
       $objSection->SectionHdr('Titles');
     } else {
       $objSection->AddText($objTitles->Name.'
');
     }
   }

   CallExit('clsTopic.DoPage()');
   return $out;
 }
 public function WebName() {
   return sprintf(KS_FMT_TOPICID,$this->ID);
 }

}

/* ------------------ *\

   EVENT LOGGING

\* ------------------ */ class clsEvents extends clsVbzTable {

 public function __construct($iDB) {
   assert('is_object($iDB)');
   parent::__construct($iDB);
     $this->Name('event_log');
     $this->KeyName('ID');
 }

 public function LogEvent($iWhere,$iParams,$iDescr,$iCode,$iIsError,$iIsSevere) {
   global $sql, $vgUserName;

   $sql = 'INSERT INTO `'.$this->Name().'` (EvWhen,EvWhere,Params,Descr,Code,VbzUser,SysUser,Machine,isError,isSevere)'.

'VALUES(NOW(),"'.$iWhere.'","'.$iParams.'","'.$iDescr.'",'.SQLValue($iCode).','.SQLValue($vgUserName). ',NULL,"'. $_ENV['REMOTE_ADDR'].'",'. ($iIsError?'TRUE':'FALSE').','. ($iIsSevere?'TRUE':'FALSE').');';

   $this->objDB->Exec($sql);  
 }

}

/* ==================== *\

   UTILITY FUNCTIONS

\* ==================== */

function DataCents($iCents,$iPfx='$') {

 $out = $iPfx.sprintf("%01.2f",$iCents/100);
 return $out;

} function DataCurr($iCurr,$iPfx='$') {

 $out = $iPfx.sprintf("%01.2f",$iCurr);
 return $out;

} function DataDate($iDate) {

   if (is_string($iDate)) {
     $objDate = new DateTime($iDate);

// if ($iDate == 0) { // $out = ; // } else { // $out = date('Y-m-d',$iDate);

     $out = $objDate->format('Y-m-d');
   } else {
     $out = ;
   }
   return $out;

} function DataDateTime($iDate) {

   if (is_string($iDate)) {

if ($iDate == ) { $out = '-'; } else { $objDate = new DateTime($iDate); $out = $objDate->format('Y-m-d H:i'); }

   } else {
     $out = ;
   }
   return $out;

} function IsEmail($iAddr) {

   $ok = preg_match('/.{1}.*[\@].{1}.*[\.][a-z]{2}.*/i', $iAddr );
   return $ok;

}

/* ==================== *\

   MISSING FUNCTIONS

\* ==================== */ if (!function_exists('http_redirect')) {

   function http_redirect($iURL) {

header('Status: 301 Moved Permanently',TRUE); header('Location: '.$iURL,TRUE);

} </php>

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