diff --git a/classes/Tools.php b/classes/Tools.php
index d0c8208a6..7fc55ca80 100644
--- a/classes/Tools.php
+++ b/classes/Tools.php
@@ -2217,6 +2217,7 @@ exit;
 		if (!is_array($args) || !count($args))
 			return;
 		$_GET = array_merge($args, $_GET);
+		$_SERVER['QUERY_STRING'] = $argv[1];
 	}
 
 	/**
diff --git a/classes/controller/AdminController.php b/classes/controller/AdminController.php
index ae44cc7b9..df0e25e39 100644
--- a/classes/controller/AdminController.php
+++ b/classes/controller/AdminController.php
@@ -513,37 +513,42 @@ class AdminControllerCore extends Controller
 	 */
 	public function postProcess()
 	{
-		if ($this->ajax)
-		{
-			// from ajax-tab.php
-			$action = Tools::getValue('action');
-			// no need to use displayConf() here
-			if (!empty($action) && method_exists($this, 'ajaxProcess'.Tools::toCamelCase($action)))
-				return $this->{'ajaxProcess'.Tools::toCamelCase($action)}();
-			elseif (method_exists($this, 'ajaxProcess'))
-				return $this->ajaxProcess();
-		}
-		else
-		{
-			// Process list filtering
-			if ($this->filter)
-				$this->processFilter();
-
-			// If the method named after the action exists, call "before" hooks, then call action method, then call "after" hooks
-			if (!empty($this->action) && method_exists($this, 'process'.ucfirst(Tools::toCamelCase($this->action))))
+		try {
+			if ($this->ajax)
 			{
-				// Hook before action
-				Hook::exec('actionAdmin'.ucfirst($this->action).'Before', array('controller' => $this));
-				Hook::exec('action'.get_class($this).ucfirst($this->action).'Before', array('controller' => $this));
-				// Call process
-				$return = $this->{'process'.Tools::toCamelCase($this->action)}();
-				// Hook After Action
-				Hook::exec('actionAdmin'.ucfirst($this->action).'After', array('controller' => $this, 'return' => $return));
-				Hook::exec('action'.get_class($this).ucfirst($this->action).'After', array('controller' => $this, 'return' => $return));
-
-				return $return;
+				// from ajax-tab.php
+				$action = Tools::getValue('action');
+				// no need to use displayConf() here
+				if (!empty($action) && method_exists($this, 'ajaxProcess'.Tools::toCamelCase($action)))
+					return $this->{'ajaxProcess'.Tools::toCamelCase($action)}();
+				elseif (method_exists($this, 'ajaxProcess'))
+					return $this->ajaxProcess();
 			}
-		}
+			else
+			{
+				// Process list filtering
+				if ($this->filter)
+					$this->processFilter();
+
+				// If the method named after the action exists, call "before" hooks, then call action method, then call "after" hooks
+				if (!empty($this->action) && method_exists($this, 'process'.ucfirst(Tools::toCamelCase($this->action))))
+				{
+					// Hook before action
+					Hook::exec('actionAdmin'.ucfirst($this->action).'Before', array('controller' => $this));
+					Hook::exec('action'.get_class($this).ucfirst($this->action).'Before', array('controller' => $this));
+					// Call process
+					$return = $this->{'process'.Tools::toCamelCase($this->action)}();
+					// Hook After Action
+					Hook::exec('actionAdmin'.ucfirst($this->action).'After', array('controller' => $this, 'return' => $return));
+					Hook::exec('action'.get_class($this).ucfirst($this->action).'After', array('controller' => $this, 'return' => $return));
+
+					return $return;
+				}
+			}
+		} catch (PrestaShopException $e) {
+			$this->errors[] = $e->getMessage();
+		};
+		return false;
 	}
 
 	/**
@@ -583,16 +588,27 @@ class AdminControllerCore extends Controller
 		$headers = array();
 		foreach ($this->fields_list as $datas)
 			$headers[] = Tools::htmlentitiesDecodeUTF8($datas['title']);
-
 		$content = array();
 		foreach ($this->_list as $i => $row)
 		{
 			$content[$i] = array();
-			foreach ($this->fields_list as $key => $value)
-				if (isset($row[$key]))
-					$content[$i][] = Tools::htmlentitiesDecodeUTF8($row[$key]);
-				
+			$path_to_image = false;
+			foreach ($this->fields_list as $key => $params)
+			{
+				$field_value = isset($row[$key]) ? Tools::htmlentitiesDecodeUTF8($row[$key]) : '';
+				if ($key == 'image')
+				{
+					if ($params['image'] != 'p' || Configuration::get('PS_LEGACY_IMAGES'))
+						$path_to_image = Tools::getShopDomain(true)._PS_IMG_.$params['image'].'/'.$row['id_'.$this->table].(isset($row['id_image']) ? '-'.(int)$row['id_image'] : '').'.'.$this->imageType;
+					else
+						$path_to_image = Tools::getShopDomain(true)._PS_IMG_.$params['image'].'/'.Image::getImgFolderStatic($row['id_image']).(int)$row['id_image'].'.'.$this->imageType;
+					if ($path_to_image)
+						$field_value = $path_to_image;  
+				}
+				$content[$i][] = $field_value;
+			}
 		}
+
 		$this->context->smarty->assign(array(
 			'export_precontent' => "\xEF\xBB\xBF",
 			'export_headers' => $headers,
@@ -1161,6 +1177,7 @@ class AdminControllerCore extends Controller
 		header('Location: '.$this->redirect_after);
 		exit;
 	}
+
 	public function display()
 	{
 		$this->context->smarty->assign(array(
diff --git a/classes/shop/Shop.php b/classes/shop/Shop.php
index 0648118dd..da7a42e6c 100644
--- a/classes/shop/Shop.php
+++ b/classes/shop/Shop.php
@@ -352,13 +352,24 @@ class ShopCore extends ObjectModel
 		if ((!$id_shop && defined('_PS_ADMIN_DIR_')) || Tools::isPHPCLI())
 		{
 			// If in admin, we can access to the shop without right URL
-			$shop = new Shop((int)Configuration::get('PS_SHOP_DEFAULT'));
+			if ((!$id_shop && Tools::isPHPCLI()) || defined('_PS_ADMIN_DIR_'))
+				$id_shop = (int)Configuration::get('PS_SHOP_DEFAULT');
+
+			$shop = new Shop((int)$id_shop);
+			if (!Validate::isLoadedObject($shop))
+				$shop = new Shop((int)Configuration::get('PS_SHOP_DEFAULT'));
+
 			$shop->physical_uri = preg_replace('#/+#', '/', str_replace('\\', '/', dirname(dirname($_SERVER['SCRIPT_NAME']))).'/');
 			$shop->virtual_uri = '';
 			
-			// Define HTTP_HOST if PHP is launched with php-cli
-			if (Tools::isPHPCLI() && !isset($_SERVER['HTTP_HOST']) || empty($_SERVER['HTTP_HOST']))
-				$_SERVER['HTTP_HOST'] = $shop->domain;
+			// Define some $_SERVER variables like HTTP_HOST if PHP is launched with php-cli
+			if (Tools::isPHPCLI())
+			{
+				if(!isset($_SERVER['HTTP_HOST']) || empty($_SERVER['HTTP_HOST']))
+					$_SERVER['HTTP_HOST'] = $shop->domain;
+				if(!isset($_SERVER['SERVER_NAME']) || empty($_SERVER['SERVER_NAME']))
+					$_SERVER['SERVER_NAME'] = $shop->domain;
+			}
 		}
 		else
 		{
diff --git a/controllers/admin/AdminGroupsController.php b/controllers/admin/AdminGroupsController.php
index a17063f88..3c8f26a79 100644
--- a/controllers/admin/AdminGroupsController.php
+++ b/controllers/admin/AdminGroupsController.php
@@ -312,36 +312,32 @@ class AdminGroupsControllerCore extends AdminController
 		return parent::renderForm();
 	}
 
-	protected function formatCategoryDiscountList($id)
+	protected function formatCategoryDiscountList($id_group)
 	{
-		$category = GroupReduction::getGroupReductions((int)$id, $this->context->language->id);
+		$group_reductions = GroupReduction::getGroupReductions((int)$id_group, $this->context->language->id);
 		$category_reductions = array();
 		$category_reduction = Tools::getValue('category_reduction');
 
-		foreach ($category as $category)
+		foreach ($group_reductions as $category)
 		{
 			if (is_array($category_reduction) && array_key_exists($category['id_category'], $category_reduction))
 				$category['reduction'] = $category_reduction[$category['id_category']];
 
-			$tmp = array();
-			$tmp['path'] = getPath(self::$currentIndex.'?tab=AdminCategories', (int)$category['id_category']);
-			$tmp['reduction'] = (float)$category['reduction'] * 100;
-			$tmp['id_category'] = (int)$category['id_category'];
-			$category_reductions[(int)$category['id_category']] = $tmp;
+			$category_reductions[(int)$category['id_category']] = array(
+				'path' => getPath(self::$currentIndex.'?tab=AdminCategories', (int)$category['id_category']),
+				'reduction' => (float)$category['reduction'] * 100,
+				'id_category' => (int)$category['id_category']
+			);
 		}
 
 		if (is_array($category_reduction))
 			foreach ($category_reduction as $key => $val)
-			{
 				if (!array_key_exists($key, $category_reductions))
-				{
-					$tmp = array();
-					$tmp['path'] = getPath(self::$currentIndex.'?tab=AdminCategories', $key);
-					$tmp['reduction'] = (float)$val * 100;
-					$tmp['id_category'] = (int)$key;
-					$category_reductions[(int)$category['id_category']] = $tmp;
-				}
-			}
+					$category_reductions[(int)$key] = array(
+						'path' => getPath(self::$currentIndex.'?tab=AdminCategories', $key),
+						'reduction' => (float)$val * 100,
+						'id_category' => (int)$key
+					);
 
 		return $category_reductions;
 	}