FIX error managent and db transaction balance

htdocs/commande/class/commande.class.php

@@ -2896,19 +2896,21 @@ class Commande extends CommonOrder
 	 * Classify the order as invoiced
 	 *
 	 * @param	User    $user       Object user making the change
-	 * @param	int		$notrigger	1=Does not execute triggers, 0= execute triggers
+	 * @param	int		$notrigger	1=Does not execute triggers, 0=execute triggers
-	 * @return	int                 <0 if KO, >0 if OK
+	 * @return	int                 <0 if KO, 0 if already billed,  >0 if OK
 	 */
 	public function classifyBilled(User $user, $notrigger = 0)
 	{
 		$error = 0;
 
 		$this->db->begin();
+
 		if ($this->billed)
 		{
 			return 0;
 		}
 
+
 		$sql = 'UPDATE '.MAIN_DB_PREFIX.'commande SET facture = 1';
 		$sql .= ' WHERE rowid = '.$this->id.' AND fk_statut > '.self::STATUS_DRAFT;
 

htdocs/compta/paiement/class/paiement.class.php

@@ -401,6 +401,7 @@ class Paiement extends CommonObject
 									if ($result < 0)
 									{
 										$this->error = $invoice->error;
+										$this->errors = $invoice->errors;
 										$error++;
 									}
 								}

htdocs/core/class/interfaces.class.php

@@ -179,20 +179,29 @@ class Interfaces
 			$objMod = new $modName($this->db);
 			if ($objMod)
 			{
+				$dblevelbefore = $this->db->transaction_opened;
+
 				$result = 0;
 
-				if (method_exists($objMod, 'runTrigger'))	// New method to implement
+				if (method_exists($objMod, 'runTrigger')) {	// New method to implement
-				{
 					//dol_syslog(get_class($this)."::run_triggers action=".$action." Launch runTrigger for file '".$files[$key]."'", LOG_DEBUG);
 					$result = $objMod->runTrigger($action, $object, $user, $langs, $conf);
-				} elseif (method_exists($objMod, 'run_trigger'))	// Deprecated method
+				} elseif (method_exists($objMod, 'run_trigger')) {	// Deprecated method
-				{
 					dol_syslog(get_class($this)."::run_triggers action=".$action." Launch old method run_trigger (rename your trigger into runTrigger) for file '".$files[$key]."'", LOG_WARNING);
 					$result = $objMod->run_trigger($action, $object, $user, $langs, $conf);
 				} else {
 					dol_syslog(get_class($this)."::run_triggers action=".$action." A trigger was declared for class ".get_class($objMod)." but method runTrigger was not found", LOG_ERR);
 				}
 
+				$dblevelafter = $this->db->transaction_opened;
+
+				if ($dblevelbefore != $dblevelafter) {
+					$errormessage = "Error, the balance begin/close of db transactions has been broken into trigger ".$modName." with action=".$action." before=".$dblevelbefore." after=".$dblevelafter;
+					$this->errors[] = $errormessage;
+					dol_syslog($errormessage, LOG_ERR);
+					$result = -1;
+				}
+
 				if ($result > 0)
 				{
 					// Action OK

htdocs/fourn/class/fournisseur.commande.class.php

@@ -891,11 +891,17 @@ class CommandeFournisseur extends CommonOrder
 	 *	Class invoiced the supplier order
 	 *
 	 *  @param      User        $user       Object user making the change
-	 *	@return     int     	            <0 if KO, >0 if KO
+	 *	@return     int     	            <0 if KO, 0 if already billed,  >0 if OK
 	 */
 	public function classifyBilled(User $user)
 	{
 		$error = 0;
+
+		if ($this->billed)
+		{
+			return 0;
+		}
+
 		$this->db->begin();
 
 		$sql = 'UPDATE '.MAIN_DB_PREFIX.'commande_fournisseur SET billed = 1';