[solved] Local to Live. Fatal Error: Class 'Pack' not found

[chops07876]

Hi everyone,

 

I have been developing my shop locally and have copied the data and SQL to my live webhost.

 

Back Office is fine. Front Office is accessible (products are listed; images and all) apart from when I want to access a product. When I click the link I get an "Internal Server Error 500". I've enabled Dev and the message translates as:

 

"Fatal error: Class 'Pack' not found in *myserver*/prestashop/controllers/front/ProductController.php on line 177"

 

Everything is fine locally, so I'm a bit confused on this. Has anyone seen this before?

 

Cheers,

 

Rob.

[PascalVG]

Hi Rob,

Interesting: in 1.5.3.1 there was a file

/override/classes/Pack.php

with contents:

<?php
class Pack extends PackCore
{
}

 

in it. This file seems to have disappeared in 1.5.4.0/1.5.4.1. (A quick search gives only a pack.php in /classes folder, being the 'PackCore' class, not the overriding 'Pack' class...)

 

Maybe try if it helps if you add a file Pack.php to the /override/classes/ folder with contents as given above? (Permissions: 644)

 

Give it a try and let me know,

pascal.

[chops07876]

Hi Pascal,

 

Thanks for your reply.

 

Unfortunately, this produces the following error:

 

Warning: require(/*myserver*/prestashop): failed to open stream: Success in /*myserver*/prestashop/classes/Autoload.php on line 112 Fatal error: require(): Failed opening required '/*myserver*/prestashop/' (include_path='.:/usr/local/lib/php-5.3.13/lib/php') in /*myserver*/prestashop/classes/Autoload.php on line 112

 

Rob.

[vekia]

may i know what ps version you use?

[chops07876]

Sure, 1.5.4.

[vekia]

1.5.4.0 / 1.5.4.1 ?

 

im trying to reproduce the issue and unfortunately i can't

 

can you show the contents of your Pack class? classes/Pack.php

 

 

here it is mine:

<?php
/*
* 2007-2013 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to [email protected] so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <[email protected]>
*  @copyright  2007-2013 PrestaShop SA
*  @license	http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/
class PackCore extends Product
{
protected static $cachePackItems = array();
protected static $cacheIsPack = array();
protected static $cacheIsPacked = array();
/**
 * Is product a pack?
 *
 * @static
 * @param $id_product
 * @return bool
 */
public static function isPack($id_product)
{
 if (!Pack::isFeatureActive())
  return false;
 if (!$id_product)
  return false;
 if (!array_key_exists($id_product, self::$cacheIsPack))
 {
  $result = Db::getInstance()->getValue('SELECT COUNT(*) FROM '._DB_PREFIX_.'pack WHERE id_product_pack = '.(int)$id_product);
  self::$cacheIsPack[$id_product] = ($result > 0);
 }
 return self::$cacheIsPack[$id_product];
}
/**
 * Is product in a pack?
 *
 * @static
 * @param $id_product
 * @return bool
 */
public static function isPacked($id_product)
{
 if (!Pack::isFeatureActive())
  return false;
 if (!array_key_exists($id_product, self::$cacheIsPacked))
 {
  $result = Db::getInstance()->getValue('SELECT COUNT(*) FROM '._DB_PREFIX_.'pack WHERE id_product_item = '.(int)$id_product);
  self::$cacheIsPacked[$id_product] = ($result > 0);
 }
 return self::$cacheIsPacked[$id_product];
}
public static function noPackPrice($id_product)
{
 $sum = 0;
 $price_display_method = !self::$_taxCalculationMethod;
 $items = Pack::getItems($id_product, Configuration::get('PS_LANG_DEFAULT'));
 foreach ($items as $item)
  $sum += $item->getPrice($price_display_method) * $item->pack_quantity;
 return $sum;
}
public static function getItems($id_product, $id_lang)
{
 if (!Pack::isFeatureActive())
  return array();
 if (array_key_exists($id_product, self::$cachePackItems))
  return self::$cachePackItems[$id_product];
 $result = Db::getInstance()->executeS('SELECT id_product_item, quantity FROM '._DB_PREFIX_.'pack where id_product_pack = '.(int)$id_product);
 $array_result = array();
 foreach ($result as $row)
 {
  $p = new Product($row['id_product_item'], false, $id_lang);
  $p->loadStockData();
  $p->pack_quantity = $row['quantity'];
  $array_result[] = $p;
 }
 self::$cachePackItems[$id_product] = $array_result;
 return self::$cachePackItems[$id_product];
}
public static function isInStock($id_product)
{
 if (!Pack::isFeatureActive())
  return true;
 $items = Pack::getItems((int)$id_product, Configuration::get('PS_LANG_DEFAULT'));
 foreach ($items as $item)
 {
  // Updated for 1.5.0
  if (Product::getQuantity($item->id) < $item->pack_quantity && !$item->isAvailableWhenOutOfStock((int)$item->out_of_stock))
return false;
 }
 return true;
}
public static function getItemTable($id_product, $id_lang, $full = false)
{
 if (!Pack::isFeatureActive())
  return array();
 $sql = 'SELECT p.*, product_shop.*, pl.*, MAX(image_shop.`id_image`) id_image, il.`legend`, cl.`name` AS category_default, a.quantity AS pack_quantity, product_shop.`id_category_default`, a.id_product_pack
FROM `'._DB_PREFIX_.'pack` a
LEFT JOIN `'._DB_PREFIX_.'product` p ON p.id_product = a.id_product_item
LEFT JOIN `'._DB_PREFIX_.'product_lang` pl
 ON p.id_product = pl.id_product
 AND pl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('pl').'
LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_product` = p.`id_product`)'.
Shop::addSqlAssociation('image', 'i', false, 'image_shop.cover=1').'
LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang.')
'.Shop::addSqlAssociation('product', 'p').'
LEFT JOIN `'._DB_PREFIX_.'category_lang` cl
 ON product_shop.`id_category_default` = cl.`id_category`
 AND cl.`id_lang` = '.(int)$id_lang.Shop::addSqlRestrictionOnLang('cl').'
WHERE product_shop.`id_shop` = '.(int)Context::getContext()->shop->id.'
AND a.`id_product_pack` = '.(int)$id_product.'
GROUP BY product_shop.id_product';
 $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
 foreach ($result as &$line)
  $line = Product::getTaxesInformations($line);

 if (!$full)
  return $result;
 $array_result = array();
 foreach ($result as $prow)
  if (!Pack::isPack($prow['id_product']))
$array_result[] = Product::getProductProperties($id_lang, $prow);
 return $array_result;
}
public static function getPacksTable($id_product, $id_lang, $full = false, $limit = null)
{
 if (!Pack::isFeatureActive())
  return array();
 $packs = Db::getInstance()->getValue('
 SELECT GROUP_CONCAT(a.`id_product_pack`)
 FROM `'._DB_PREFIX_.'pack` a
 WHERE a.`id_product_item` = '.(int)$id_product);
 if (!(int)$packs)
  return array();
 $sql = '
 SELECT p.*, product_shop.*, pl.*, MAX(image_shop.`id_image`) id_image, il.`legend`
 FROM `'._DB_PREFIX_.'product` p
 NATURAL LEFT JOIN `'._DB_PREFIX_.'product_lang` pl
 '.Shop::addSqlAssociation('product', 'p').'
 LEFT JOIN `'._DB_PREFIX_.'image` i ON (i.`id_product` = p.`id_product`)'.
 Shop::addSqlAssociation('image', 'i', false, 'image_shop.cover=1').'
 LEFT JOIN `'._DB_PREFIX_.'image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = '.(int)$id_lang.')
 WHERE pl.`id_lang` = '.(int)$id_lang.'
  '.Shop::addSqlRestrictionOnLang('pl').'
  AND p.`id_product` IN ('.$packs.')
 GROUP BY product_shop.id_product';
 if ($limit)
  $sql .= ' LIMIT '.(int)$limit;
 $result = Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS($sql);
 if (!$full)
  return $result;
 $array_result = array();
 foreach ($result as $row)
  if (!Pack::isPacked($row['id_product']))
$array_result[] = Product::getProductProperties($id_lang, $row);
 return $array_result;
}
public static function deleteItems($id_product)
{
 return Db::getInstance()->update('product', array('cache_is_pack' => 0), 'id_product = '.(int)$id_product) &&
  Db::getInstance()->execute('DELETE FROM `'._DB_PREFIX_.'pack` WHERE `id_product_pack` = '.(int)$id_product) &&
  Configuration::updateGlobalValue('PS_PACK_FEATURE_ACTIVE', Pack::isCurrentlyUsed());
}
/**
* Add an item to the pack
*
* @param integer $id_product
* @param integer $id_item
* @param integer $qty
* @return boolean true if everything was fine
*/
public static function addItem($id_product, $id_item, $qty)
{
 return Db::getInstance()->update('product', array('cache_is_pack' => 1), 'id_product = '.(int)$id_product) &&
  Db::getInstance()->insert('pack', array('id_product_pack' => (int)$id_product, 'id_product_item' => (int)$id_item, 'quantity' => (int)$qty)) &&
  Configuration::updateGlobalValue('PS_PACK_FEATURE_ACTIVE', '1');
}
public static function duplicate($id_product_old, $id_product_new)
{
 Db::getInstance()->execute('INSERT INTO '._DB_PREFIX_.'pack (id_product_pack, id_product_item, quantity)
 (SELECT '.(int)$id_product_new.', id_product_item, quantity FROM '._DB_PREFIX_.'pack WHERE id_product_pack = '.(int)$id_product_old.')');
 // If return query result, a non-pack product will return false
 return true;
}
/**
 * This method is allow to know if a feature is used or active
 * @since 1.5.0.1
 * @return bool
 */
public static function isFeatureActive()
{
 return Configuration::get('PS_PACK_FEATURE_ACTIVE');
}
/**
 * This method is allow to know if a Pack entity is currently used
 * @since 1.5.0
 * @param $table
 * @param $has_active_column
 * @return bool
 */
public static function isCurrentlyUsed($table = null, $has_active_column = false)
{
 // We dont't use the parent method because the identifier isn't id_pack
 return (bool)Db::getInstance(_PS_USE_SQL_SLAVE_)->getValue('
  SELECT `id_product_pack`
  FROM `'._DB_PREFIX_.'pack`
 ');
}
/**
 * For a given pack, tells if it has at least one product using the advanced stock management
 *
 * @param int $id_product id_pack
 * @return bool
 */
public static function usesAdvancedStockManagement($id_product)
{
 if (!Pack::isPack($id_product))
  return false;
 $products = Pack::getItems($id_product, Configuration::get('PS_LANG_DEFAULT'));
 foreach ($products as $product)
 {
  // if one product uses the advanced stock management
  if ($product->advanced_stock_management == 1)
return true;
 }
 // not used
 return false;
}
}

 

you can try to use it in your own Pack class.

[chops07876]

Pack.php was present but was completely empty! Sorry, I really should've checked that! All is now well. Apologies for wasting your time.

[vekia]

so the problem is SOLVED?

[chops07876]

Yes. Products are now accessible.

[vekia]

great, im glad that it works for you now

 

im going to mark this thread as [solved]

 

best regards