diff --git a/htdocs/comm/action/class/actioncomm.class.php b/htdocs/comm/action/class/actioncomm.class.php
index 6b77e2414da1a0033e593c4c0a1086e467bbc860..e759e93a6357a8213796355222c483c5b9e7f19e 100644
--- a/htdocs/comm/action/class/actioncomm.class.php
+++ b/htdocs/comm/action/class/actioncomm.class.php
@@ -406,7 +406,7 @@ class ActionComm extends CommonObject
 	 */
 	public function add(User $user, $notrigger = 0)
 	{
-		$this->create($user, $notrigger);
+		return $this->create($user, $notrigger);
 	}
 
     /**
diff --git a/htdocs/multicurrency/class/multicurrency.class.php b/htdocs/multicurrency/class/multicurrency.class.php
index 9b203ea04248289d30c7cc39a84f44743a56dd72..c2c6ba1bc991086c269d8f9019587b3be7ca22b6 100644
--- a/htdocs/multicurrency/class/multicurrency.class.php
+++ b/htdocs/multicurrency/class/multicurrency.class.php
@@ -140,6 +140,7 @@ class MultiCurrency extends CommonObject
 
 		$this->db->begin();
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		if (!$resql) {
 			$error ++;
@@ -184,9 +185,10 @@ class MultiCurrency extends CommonObject
 		$sql = 'SELECT';
 		$sql .= ' c.rowid, c.name, c.code, c.entity, c.date_create, c.fk_user';
 		$sql .= ' FROM ' . MAIN_DB_PREFIX . $this->table_element . ' AS c';
-		if (!empty($code)) $sql .= ' WHERE c.code = "'.$this->db->escape($code).'"';
+		if (!empty($code)) $sql .= ' WHERE c.code = \''.$this->db->escape($code).'\'';
 		else $sql .= ' WHERE c.rowid = ' . $id;
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		
 		if ($resql) {
@@ -226,8 +228,6 @@ class MultiCurrency extends CommonObject
 	 */
 	public function fetchAllCurrencyRate()
 	{
-		dol_syslog('Currency::fetchAllCurrencyRate', LOG_DEBUG);
-
 		$sql = 'SELECT cr.rowid';
 		$sql.= ' FROM ' . MAIN_DB_PREFIX . $this->table_element_line. ' as cr';
 		$sql.= ' WHERE cr.fk_multicurrency = '.$this->id;
@@ -235,6 +235,7 @@ class MultiCurrency extends CommonObject
 		
 		$this->rates = array();
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		if ($resql) {
 			$num = $this->db->num_rows($resql);
@@ -284,10 +285,11 @@ class MultiCurrency extends CommonObject
 		
 		// Update request
 		$sql = 'UPDATE ' . MAIN_DB_PREFIX . $this->table_element . ' SET';
-		$sql .= ' name="'.$this->db->escape($this->name).'"';
-		$sql .= ' code="'.$this->db->escape($this->code).'"';
+		$sql .= ' name=\''.$this->db->escape($this->name).'\'';
+		$sql .= ' code=\''.$this->db->escape($this->code).'\'';
 		$sql .= ' WHERE rowid=' . $this->id;
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$this->db->begin();
 
 		$resql = $this->db->query($sql);
@@ -347,6 +349,7 @@ class MultiCurrency extends CommonObject
 			$sql = 'DELETE FROM ' . MAIN_DB_PREFIX . $this->table_element;
 			$sql .= ' WHERE rowid=' . $this->id;
 
+			dol_syslog(__METHOD__,LOG_DEBUG);
 			$resql = $this->db->query($sql);
 			if (!$resql) {
 				$error ++;
@@ -425,7 +428,9 @@ class MultiCurrency extends CommonObject
 		$currency->code = $code;
 		$currency->name = $code;
 		
-	 	$sql = 'SELECT label FROM '.MAIN_DB_PREFIX.'c_currencies WHERE code_iso = "'.$db->escape($code).'"';
+	 	$sql = 'SELECT label FROM '.MAIN_DB_PREFIX.'c_currencies WHERE code_iso = \''.$db->escape($code).'\'';
+	 	
+	 	dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $db->query($sql);
 		if ($resql && ($line = $db->fetch_object($resql)))
 		{
@@ -475,6 +480,7 @@ class MultiCurrency extends CommonObject
 		$sql.= ' WHERE cr.fk_multicurrency = '.$this->id;
 		$sql.= ' AND cr.date_sync >= ALL (SELECT cr2.date_sync FROM '.MAIN_DB_PREFIX.$this->table_element_line.' AS cr2 WHERE cr.rowid = cr2.rowid)';
 		
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		if ($resql && ($obj = $this->db->fetch_object($resql))) {
 			$this->rate = new CurrencyRate($this->db);
@@ -493,7 +499,9 @@ class MultiCurrency extends CommonObject
 	 */
 	 public static function getIdFromCode(&$db, $code)
 	 {
-	 	$sql = 'SELECT rowid FROM '.MAIN_DB_PREFIX.'multicurrency WHERE code = "'.$db->escape($code).'"';
+	 	$sql = 'SELECT rowid FROM '.MAIN_DB_PREFIX.'multicurrency WHERE code = \''.$db->escape($code).'\'';
+	 	
+	 	dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $db->query($sql);
 		if ($resql && $obj = $db->fetch_object($resql)) return $obj->rowid;
 		else return 0;
@@ -512,10 +520,11 @@ class MultiCurrency extends CommonObject
 	 {
 	 	$sql = 'SELECT m.rowid, mc.rate FROM '.MAIN_DB_PREFIX.'multicurrency m';
 		$sql.= ' LEFT JOIN '.MAIN_DB_PREFIX.'multicurrency_rate mc ON (m.rowid = mc.fk_multicurrency)';
-		$sql.= ' WHERE m.code = "'.$db->escape($code).'"';
+		$sql.= ' WHERE m.code = \''.$db->escape($code).'\'';
 		$sql.= " AND m.entity IN (".getEntity('multicurrency', 1).")";
 		$sql.= ' ORDER BY mc.date_sync DESC LIMIT 1';
 		
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $db->query($sql);
 		if ($resql && $obj = $db->fetch_object($resql)) return array($obj->rowid, $obj->rate);
 		else return array(0, 1);
@@ -556,6 +565,8 @@ class MultiCurrency extends CommonObject
 		 global $db;
 		 
 		 $sql = 'SELECT multicurrency_tx FROM '.MAIN_DB_PREFIX.$table.' WHERE rowid = '.$fk_facture;
+		 
+		 dol_syslog(__METHOD__,LOG_DEBUG);
 		 $resql = $db->query($sql);
 		 if ($resql && ($line = $db->fetch_object($resql)))
 		 {
@@ -721,6 +732,7 @@ class CurrencyRate extends CommonObjectLine
 
 		$this->db->begin();
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		if (!$resql) {
 			$error ++;
@@ -765,6 +777,7 @@ class CurrencyRate extends CommonObjectLine
 		$sql .= ' FROM '.MAIN_DB_PREFIX.$this->table_element.' AS cr';
 		$sql .= ' WHERE cr.rowid = ' . $id;
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		if ($resql) {
 			$numrows = $this->db->num_rows($resql);
@@ -816,6 +829,7 @@ class CurrencyRate extends CommonObjectLine
 
 		$this->db->begin();
 
+		dol_syslog(__METHOD__,LOG_DEBUG);
 		$resql = $this->db->query($sql);
 		if (!$resql) {
 			$error ++;
@@ -866,6 +880,7 @@ class CurrencyRate extends CommonObjectLine
 			$sql = 'DELETE FROM '.MAIN_DB_PREFIX.$this->table_element;
 			$sql .= ' WHERE rowid='.$this->id;
 
+			dol_syslog(__METHOD__,LOG_DEBUG);
 			$resql = $this->db->query($sql);
 			if (!$resql) {
 				$error ++;