diff --git a/htdocs/contact/class/contact.class.php b/htdocs/contact/class/contact.class.php
index 71d816c166e..dadb41179ca 100644
--- a/htdocs/contact/class/contact.class.php
+++ b/htdocs/contact/class/contact.class.php
@@ -1067,9 +1067,6 @@ class Contact extends CommonObject
 
 		$error = 0;
 
-		//$this->old_lastname = $obj->lastname;
-		//$this->old_firstname = $obj->firstname;
-
 		$this->db->begin();
 
 		if (!$error)
@@ -1731,57 +1728,4 @@ class Contact extends CommonObject
 			return $error * -1;
 		}
 	}
-
-	/**
-	 * Delete all contact from a thirdparty
-	 * @param		int		$socId      Thirdparty Id
-	 * @param       int     $notrigger  Disable all trigger
-	 * @return		int						<0 if KO, >0 if OK
-	 * @throws Exception
-	 */
-	public function deleteBySoc($socId = 0, $notrigger = 0)
-	{
-		$error = 0;
-		$deleted = 0;
-
-		if (!empty($socId)) {
-			$this->db->begin();
-
-			$sql = "SELECT rowid FROM " . MAIN_DB_PREFIX . $this->table_element;
-			$sql .= " WHERE fk_soc = " . $socId;
-			dol_syslog(__METHOD__, LOG_DEBUG);
-			$resql = $this->db->query($sql);
-			if (!$resql) {
-				$this->errors[] = $this->db->lasterror() . ' sql=' . $sql;
-				$error++;
-			} else {
-				while ($obj = $this->db->fetch_object($resql)) {
-					$result = $this->fetch($obj->rowid);
-					if ($result < 0) {
-						$error++;
-						$this->errors = $this->error;
-					} else {
-						$result = $this->delete($notrigger);
-						if ($result < 0) {
-							$error++;
-							$this->errors = $this->error;
-						} else {
-							$deleted++;
-						}
-					}
-				}
-			}
-
-			if (empty($error)) {
-				$this->db->commit();
-				return $deleted;
-			} else {
-				$this->error = implode(' ', $this->errors);
-				$this->db->rollback();
-				return $error * -1;
-			}
-		}
-
-		return $deleted;
-	}
 }
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 7fe7fc41303..d8ff3cde3c4 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -438,10 +438,14 @@ abstract class CommonObject
 
 	public $next_prev_filter;
 
-
+	/**
+	 * @var array    List of child tables. To know object to delete on cascade.
+	 *               if name like with @ClassNAme:FilePathClass;ParentFkFieldName' it will
+	 *               call method deleteByParentField(parentId,ParentFkFieldName) to fetch and delete child object
+	 */
+	protected $childtablesoncascade = array();
 
 	// No constructor as it is an abstract class
-
 	/**
 	 * Check an object id/ref exists
 	 * If you don't need/want to instantiate object and just need to know if object exists, use this method instead of fetch
@@ -7892,16 +7896,18 @@ abstract class CommonObject
             foreach ($this->childtablesoncascade as $table)
             {
 	            $deleteFromObject=explode(':', $table);
-	            if (count($deleteFromObject)>1) {
+	            if (count($deleteFromObject)>=2) {
 		            $className=str_replace('@', '', $deleteFromObject[0]);
 		            $filePath=$deleteFromObject[1];
-		            $deleteMethod=$deleteFromObject[2];
+		            $columnName=$deleteFromObject[2];
 		            if (dol_include_once($filePath)) {
 			            $childObject = new $className($this->db);
-			            $result= $childObject->{$deleteMethod}($this->id);
-			            if ($result<0) {
-				            $this->errors[] = $childObject->error;
-				            return -1;
+			            if (is_callable($childObject, 'deleteByParentField')) {
+				            $result = $childObject->deleteByParentField($this->id, $columnName);
+				            if ($result < 0) {
+					            $this->errors[] = $childObject->error;
+					            return -1;
+				            }
 			            }
 		            } else {
 			            $this->errors[] = 'Cannot find child class file ' .$filePath;
@@ -7963,6 +7969,75 @@ abstract class CommonObject
 		}
 	}
 
+	/**
+	 * Delete all child object
+	 * @param		int		$parentId      Parent Id
+	 * @param		string	$parentField Name of parent FIled
+	 * @return		int						<0 if KO, >0 if OK
+	 * @throws Exception
+	 */
+	public function deleteByParentField($parentId = 0, $parentField='')
+	{
+		global $user;
+
+		$error = 0;
+		$deleted = 0;
+
+		if (!empty($parentId) && !empty($parentField)) {
+			$this->db->begin();
+
+			$sql = "SELECT rowid FROM " . MAIN_DB_PREFIX . $this->table_element;
+			$sql .= ' WHERE '.$parentField.' = ' . $parentId;
+			dol_syslog(__METHOD__, LOG_DEBUG);
+			$resql = $this->db->query($sql);
+			if (!$resql) {
+				$this->errors[] = $this->db->lasterror();
+				$error++;
+			} else {
+				while ($obj = $this->db->fetch_object($resql)) {
+					$result = $this->fetch($obj->rowid);
+					if ($result < 0) {
+						$error++;
+						$this->errors = $this->error;
+					} else {
+						$needUserParam = false;
+						if (class_exists('ReflectionMethod')) {
+							$method = new ReflectionMethod($this, 'delete');
+							$argsMethod=$method->getParameters();
+							if (is_array($argsMethod) && count($argsMethod)>0) {
+								if ($argsMethod[0]->name == 'user') {
+									$needUserParam = true;
+								}
+							}
+						}
+						if ($needUserParam) {
+							$result = $this->delete($user);
+						} else {
+							$result = $this->delete();
+						}
+						if ($result < 0) {
+							$error++;
+							$this->errors = $this->error;
+						} else {
+							$deleted++;
+						}
+					}
+				}
+			}
+
+			if (empty($error)) {
+				$this->db->commit();
+				return $deleted;
+			} else {
+				$this->error = implode(' ', $this->errors);
+				$this->db->rollback();
+				return $error * -1;
+			}
+		}
+
+		return $deleted;
+	}
+
 	/**
 	 *  Delete a line of object in database
 	 *
diff --git a/htdocs/societe/class/societe.class.php b/htdocs/societe/class/societe.class.php
index f5caa59e1f1..242b3c3efd4 100644
--- a/htdocs/societe/class/societe.class.php
+++ b/htdocs/societe/class/societe.class.php
@@ -84,7 +84,7 @@ class Societe extends CommonObject
 
 	/**
 	 * @var array    List of child tables. To know object to delete on cascade.
-	 *               if name like with @ClassNAme:FilePathClass:MethodDetele' it will call method to delete object rather tahn SQL delete
+	 *               if name like with @ClassNAme:FilePathClass;ParentFkFieldName' it will call method deleteByParentField (with parentId as parameters) and FieldName to fetch and delete child object
 	 */
 	protected $childtablesoncascade = array(
 		"societe_prices",
@@ -93,7 +93,7 @@ class Societe extends CommonObject
 		"product_fournisseur_price",
 		"product_customer_price_log",
 		"product_customer_price",
-		"@Contact:/contact/class/contact.class.php:deleteBySoc",
+		"@Contact:/contact/class/contact.class.php:fk_soc",
 		"adherent",
 		"societe_account",
 		"societe_rib",
@@ -1682,17 +1682,19 @@ class Societe extends CommonObject
 			{
 				if (!$error)
 				{
-					$delete_from_object=explode(':', $tabletodelete);
-					if (count($delete_from_object)>1) {
-						$class_name=str_replace('@', '', $delete_from_object[0]);
-						$filepath=$delete_from_object[1];
-						$delete_method=$delete_from_object[2];
+					$deleteFromObject=explode(':', $tabletodelete);
+					if (count($deleteFromObject)>=2) {
+						$className=str_replace('@', '', $deleteFromObject[0]);
+						$filepath=$deleteFromObject[1];
+						$columnName=$deleteFromObject[2];
 						if (dol_include_once($filepath)) {
-							$child_object = new $class_name($this->db);
-							$result= $child_object->{$delete_method}($id);
-							if ($result<0) {
-								$error++;
-								$this->errors[] = $child_object->error;
+							if (class_exists($className)) {
+								$child_object = new $className($this->db);
+								$result = $child_object->deleteByParentField($id, $columnName);
+								if ($result < 0) {
+									$error++;
+									$this->errors[] = $child_object->error;
+								}
 							}
 						} else {
 							$error++;
@@ -1706,6 +1708,7 @@ class Societe extends CommonObject
 							$this->errors[] = $this->db->lasterror();
 						}
 					}
+
 				}
 			}