diff --git a/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php b/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php
index 4b8978462fb..85783ae197d 100644
--- a/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php
+++ b/htdocs/admin/dolistore/class/PSWebServiceLibrary.class.php
@@ -387,48 +387,6 @@ class PrestaShopWebservice
 		self::checkStatusCode($request['status_code']);// check the response validity
 		return self::parseXML($request['response']);
 	}
-
-	/**
-	 * Delete (DELETE) a resource.
-	 * Unique parameter must take : <br><br>
-	 * 'resource' => Resource name<br>
-	 * 'id' => ID or array which contains IDs of a resource(s) you want to delete<br><br>
-	 * <code>
-	 * <?php
-	 * require_once('./PrestaShopWebservice.php');
-	 * try
-	 * {
-	 * $ws = new PrestaShopWebservice('http://mystore.com/', 'ZQ88PRJX5VWQHCWE4EE7SQ7HPNX00RAJ', false);
-	 * $xml = $ws->delete(array('resource' => 'orders', 'id' => 1));
-	 *	// Following code will not be executed if an exception is thrown.
-	 * 	echo 'Successfully deleted.';
-	 * }
-	 * catch (PrestaShopWebserviceException $ex)
-	 * {
-	 * 	echo 'Error : '.$ex->getMessage();
-	 * }
-	 * ?>
-	 * </code>
-	 * @param 	array 		$options 	Array representing resource to delete.
-	 * @return	boolean					true
-	 */
-	public function delete($options)
-	{
-		if (isset($options['url']))
-			$url = $options['url'];
-		elseif (isset($options['resource']) && isset($options['id']))
-			if (is_array($options['id']))
-				$url = $this->url.'/api/'.$options['resource'].'/?id=['.implode(',', $options['id']).']';
-			else
-				$url = $this->url.'/api/'.$options['resource'].'/'.$options['id'];
-		if (isset($options['id_shop']))
-			$url .= '&id_shop='.$options['id_shop'];
-		if (isset($options['id_group_shop']))
-			$url .= '&id_group_shop='.$options['id_group_shop'];
-		$request = self::executeRequest($url, array(CURLOPT_CUSTOMREQUEST => 'DELETE'));
-		self::checkStatusCode($request['status_code']);// check the response validity
-		return true;
-	}
 }
 
 /**
diff --git a/htdocs/comm/mailing/class/advtargetemailing.class.php b/htdocs/comm/mailing/class/advtargetemailing.class.php
index ea2569b863e..8e8941c23fb 100644
--- a/htdocs/comm/mailing/class/advtargetemailing.class.php
+++ b/htdocs/comm/mailing/class/advtargetemailing.class.php
@@ -658,7 +658,7 @@ class AdvanceTargetingMailing extends CommonObject
 				$sqlwhere[]= " (t.datec >= '".$this->db->idate($arrayquery['contact_create_st_dt'])."' AND t.datec <= '".$this->db->idate($arrayquery['contact_create_end_dt'])."')";
 			}
 			if (!empty($arrayquery['contact_categ']) && count($arrayquery['contact_categ'])>0) {
-				$sqlwhere[]= " (contactcateg.fk_categorie IN (".$db->escape(implode(",",$arrayquery['contact_categ']))."))";
+				$sqlwhere[]= " (contactcateg.fk_categorie IN (".$this->db->escape(implode(",",$arrayquery['contact_categ']))."))";
 			}
 
 			//Standard Extrafield feature
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 7df18ebba43..c022dab7d78 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1919,7 +1919,7 @@ class Form
         $sql.= ' WHERE p.entity IN ('.getEntity('product').')';
         if (count($warehouseStatusArray))
         {
-            $sql.= ' AND (p.fk_product_type = 1 OR e.statut IN ('.$db->escape(implode(',',$warehouseStatusArray)).'))';
+            $sql.= ' AND (p.fk_product_type = 1 OR e.statut IN ('.$this->db->escape(implode(',',$warehouseStatusArray)).'))';
         }
 
         if (!empty($conf->global->PRODUIT_ATTRIBUTES_HIDECHILD)) {