diff --git a/htdocs/core/modules/cheque/mod_chequereceipt_mint.php b/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
index 1c028559ddc..680357ce9bb 100644
--- a/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
+++ b/htdocs/core/modules/cheque/mod_chequereceipt_mint.php
@@ -73,7 +73,7 @@ class mod_chequereceipt_mint extends ModeleNumRefChequeReceipts
 		$posindice=9;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."bordereau_cheque";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -107,7 +107,7 @@ class mod_chequereceipt_mint extends ModeleNumRefChequeReceipts
 		$posindice=9;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."bordereau_cheque";
-		$sql.= " WHERE ref like '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref like '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/commande/mod_commande_marbre.php b/htdocs/core/modules/commande/mod_commande_marbre.php
index fdea573f584..9941811006b 100644
--- a/htdocs/core/modules/commande/mod_commande_marbre.php
+++ b/htdocs/core/modules/commande/mod_commande_marbre.php
@@ -73,7 +73,7 @@ class mod_commande_marbre extends ModeleNumRefCommandes
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."commande";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -107,7 +107,7 @@ class mod_commande_marbre extends ModeleNumRefCommandes
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."commande";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/contract/mod_contract_serpis.php b/htdocs/core/modules/contract/mod_contract_serpis.php
index a76d61a04ae..5dcb8a72baa 100644
--- a/htdocs/core/modules/contract/mod_contract_serpis.php
+++ b/htdocs/core/modules/contract/mod_contract_serpis.php
@@ -72,7 +72,7 @@ class mod_contract_serpis extends ModelNumRefContracts
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."contrat";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -105,7 +105,7 @@ class mod_contract_serpis extends ModelNumRefContracts
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."contrat";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/expedition/mod_expedition_safor.php b/htdocs/core/modules/expedition/mod_expedition_safor.php
index 6d2b115d6b3..826ba6665c4 100644
--- a/htdocs/core/modules/expedition/mod_expedition_safor.php
+++ b/htdocs/core/modules/expedition/mod_expedition_safor.php
@@ -71,7 +71,7 @@ class mod_expedition_safor extends ModelNumRefExpedition
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."expedition";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -104,7 +104,7 @@ class mod_expedition_safor extends ModelNumRefExpedition
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."expedition";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/expensereport/mod_expensereport_jade.php b/htdocs/core/modules/expensereport/mod_expensereport_jade.php
index e6da5fab7eb..c85625cabf8 100644
--- a/htdocs/core/modules/expensereport/mod_expensereport_jade.php
+++ b/htdocs/core/modules/expensereport/mod_expensereport_jade.php
@@ -72,7 +72,7 @@ class mod_expensereport_jade extends ModeleNumRefExpenseReport
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."expensereport";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -105,7 +105,7 @@ class mod_expensereport_jade extends ModeleNumRefExpenseReport
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."expensereport";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/facture/mod_facture_mars.php b/htdocs/core/modules/facture/mod_facture_mars.php
index f31d5a7f451..85dff1aa0e1 100644
--- a/htdocs/core/modules/facture/mod_facture_mars.php
+++ b/htdocs/core/modules/facture/mod_facture_mars.php
@@ -89,7 +89,7 @@ class mod_facture_mars extends ModeleNumRefFactures
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(facnumber FROM ".$posindice.") AS SIGNED) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture";
-		$sql.= " WHERE facnumber LIKE '".$this->db->escape($this->prefixinvoice)."____-%'";
+		$sql.= " WHERE facnumber LIKE '".$db->escape($this->prefixinvoice)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -111,7 +111,7 @@ class mod_facture_mars extends ModeleNumRefFactures
 		$posindice=8;
 		$sql = "SELECT MAX(SUBSTRING(facnumber FROM ".$posindice.")) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture";
-		$sql.= " WHERE facnumber LIKE '".$this->db->escape($this->prefixcreditnote)."____-%'";
+		$sql.= " WHERE facnumber LIKE '".$db->escape($this->prefixcreditnote)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/facture/mod_facture_terre.php b/htdocs/core/modules/facture/mod_facture_terre.php
index cf2ea28f162..4c27340f270 100644
--- a/htdocs/core/modules/facture/mod_facture_terre.php
+++ b/htdocs/core/modules/facture/mod_facture_terre.php
@@ -87,7 +87,7 @@ class mod_facture_terre extends ModeleNumRefFactures
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(facnumber FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture";
-		$sql.= " WHERE facnumber LIKE '".$this->db->escape($this->prefixinvoice)."____-%'";
+		$sql.= " WHERE facnumber LIKE '".$db->escape($this->prefixinvoice)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -109,7 +109,7 @@ class mod_facture_terre extends ModeleNumRefFactures
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(facnumber FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture";
-		$sql.= " WHERE facnumber LIKE '".$this->db->escape($this->prefixcreditnote)."____-%'";
+		$sql.= " WHERE facnumber LIKE '".$db->escape($this->prefixcreditnote)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -130,7 +130,7 @@ class mod_facture_terre extends ModeleNumRefFactures
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(facnumber FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture";
-		$sql.= " WHERE facnumber LIKE '".$this->db->escape($this->prefixdeposit)."____-%'";
+		$sql.= " WHERE facnumber LIKE '".$db->escape($this->prefixdeposit)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/fichinter/mod_pacific.php b/htdocs/core/modules/fichinter/mod_pacific.php
index c9f42f12949..7e60a6aed4b 100644
--- a/htdocs/core/modules/fichinter/mod_pacific.php
+++ b/htdocs/core/modules/fichinter/mod_pacific.php
@@ -74,7 +74,7 @@ class mod_pacific extends ModeleNumRefFicheinter
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."fichinter";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " WHERE entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -110,7 +110,7 @@ class mod_pacific extends ModeleNumRefFicheinter
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."fichinter";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/fichinter/modules_fichinter.php b/htdocs/core/modules/fichinter/modules_fichinter.php
index 6f4b68f801c..8bcb2990bdb 100644
--- a/htdocs/core/modules/fichinter/modules_fichinter.php
+++ b/htdocs/core/modules/fichinter/modules_fichinter.php
@@ -60,8 +60,7 @@ abstract class ModelePDFFicheinter extends CommonDocGenerator
 
 
 /**
- *  \class      ModeleNumRefFicheinter
- *  \brief      Classe mere des modeles de numerotation des references de fiches d'intervention
+ *  Classe mere des modeles de numerotation des references de fiches d'intervention
  */
 abstract class ModeleNumRefFicheinter
 {
diff --git a/htdocs/core/modules/livraison/mod_livraison_jade.php b/htdocs/core/modules/livraison/mod_livraison_jade.php
index cbb630543c7..228b73aad8b 100644
--- a/htdocs/core/modules/livraison/mod_livraison_jade.php
+++ b/htdocs/core/modules/livraison/mod_livraison_jade.php
@@ -80,7 +80,7 @@ class mod_livraison_jade extends ModeleNumRefDeliveryOrder
         $posindice=8;
         $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";   // This is standard SQL
         $sql.= " FROM ".MAIN_DB_PREFIX."livraison";
-        $sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+        $sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
         $sql.= " AND entity = ".$conf->entity;
 
         $resql=$db->query($sql);
@@ -114,7 +114,7 @@ class mod_livraison_jade extends ModeleNumRefDeliveryOrder
         $posindice=8;
         $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";   // This is standard SQL
         $sql.= " FROM ".MAIN_DB_PREFIX."livraison";
-        $sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+        $sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
         $sql.= " AND entity = ".$conf->entity;
 
         $resql=$db->query($sql);
@@ -133,7 +133,7 @@ class mod_livraison_jade extends ModeleNumRefDeliveryOrder
         $date=$object->date_delivery;
         if (empty($date)) $date=dol_now();
         $yymm = strftime("%y%m",$date);
-        
+
         if ($max >= (pow(10, 4) - 1)) $num=$max+1;	// If counter > 9999, we do not format on 4 chars, we take number as it is
         else $num = sprintf("%04s",$max+1);
 
diff --git a/htdocs/core/modules/payment/mod_payment_cicada.php b/htdocs/core/modules/payment/mod_payment_cicada.php
index 6c75557864b..8fc05b6cdd8 100644
--- a/htdocs/core/modules/payment/mod_payment_cicada.php
+++ b/htdocs/core/modules/payment/mod_payment_cicada.php
@@ -73,7 +73,7 @@ class mod_payment_cicada extends ModeleNumRefPayments
 		$posindice=9;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."paiement";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -107,7 +107,7 @@ class mod_payment_cicada extends ModeleNumRefPayments
 		$posindice=9;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."paiement";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/printing/printgcp.modules.php b/htdocs/core/modules/printing/printgcp.modules.php
index ebcb9f3cebf..539db0ddee5 100644
--- a/htdocs/core/modules/printing/printgcp.modules.php
+++ b/htdocs/core/modules/printing/printgcp.modules.php
@@ -47,7 +47,7 @@ class printing_printgcp extends PrintingDriver
     var $db;
 
     private $OAUTH_SERVICENAME_GOOGLE = 'Google';
-    
+
     const LOGIN_URL = 'https://accounts.google.com/o/oauth2/token';
     const PRINTERS_SEARCH_URL = 'https://www.google.com/cloudprint/search';
     const PRINTERS_GET_JOBS = 'https://www.google.com/cloudprint/jobs';
@@ -68,11 +68,11 @@ class printing_printgcp extends PrintingDriver
         //$urlwithroot=DOL_MAIN_URL_ROOT;					// This is to use same domain name than current
 
         $this->db = $db;
-        
+
         if (!$conf->oauth->enabled) {
             $this->conf[] = array('varname'=>'PRINTGCP_INFO', 'info'=>$langs->transnoentitiesnoconv("WarningModuleNotActive", "OAuth"), 'type'=>'info');
         } else {
-         
+
         	$this->google_id = $conf->global->OAUTH_GOOGLE_ID;
         	$this->google_secret = $conf->global->OAUTH_GOOGLE_SECRET;
         	// Token storage
@@ -95,7 +95,7 @@ class printing_printgcp extends PrintingDriver
             	$token_ok = false;
         	}
         	//var_dump($this->errors);exit;
-        
+
         	$expire = false;
         	// Is token expired or will token expire in the next 30 seconds
         	if ($token_ok) {
@@ -119,9 +119,9 @@ class printing_printgcp extends PrintingDriver
                 $this->conf[] = array('varname'=>'PRINTGCP_TOKEN_ACCESS', 'info'=>$access, 'type'=>'info', 'renew'=>$urlwithroot.'/core/modules/oauth/google_oauthcallback.php?state=userinfo_email,userinfo_profile,cloud_print&backtourl='.urlencode(DOL_URL_ROOT.'/printing/admin/printing.php?mode=setup&driver=printgcp'), 'delete'=>($storage->hasAccessToken($this->OAUTH_SERVICENAME_GOOGLE)?$urlwithroot.'/core/modules/oauth/google_oauthcallback.php?action=delete&backtourl='.urlencode(DOL_URL_ROOT.'/printing/admin/printing.php?mode=setup&driver=printgcp'):''));
                 if ($token_ok) {
                     $expiredat='';
-                    
+
                     $refreshtoken = $token->getRefreshToken();
-                    
+
                     $endoflife=$token->getEndOfLife();
 
                     if ($endoflife == $token::EOL_NEVER_EXPIRES)
@@ -136,7 +136,7 @@ class printing_printgcp extends PrintingDriver
                     {
                         $expiredat=dol_print_date($endoflife, "dayhour");
                     }
-                    
+
                     $this->conf[] = array('varname'=>'TOKEN_REFRESH',   'info'=>((! empty($refreshtoken))?'Yes':'No'), 'type'=>'info');
                     $this->conf[] = array('varname'=>'TOKEN_EXPIRED',   'info'=>($expire?'Yes':'No'), 'type'=>'info');
                     $this->conf[] = array('varname'=>'TOKEN_EXPIRE_AT', 'info'=>($expiredat), 'type'=>'info');
@@ -284,7 +284,7 @@ class printing_printgcp extends PrintingDriver
     {
         require_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
 
-        global $conf, $user, $db;
+        global $conf, $user;
         $error = 0;
 
         $fileprint=$conf->{$module}->dir_output;
@@ -293,7 +293,7 @@ class printing_printgcp extends PrintingDriver
         $mimetype = dol_mimetype($fileprint);
         // select printer uri for module order, propal,...
         $sql = "SELECT rowid, printer_id, copy FROM ".MAIN_DB_PREFIX."printing WHERE module='".$module."' AND driver='printgcp' AND userid=".$user->id;
-        $result = $db->query($sql);
+        $result = $this->db->query($sql);
         if ($result)
         {
             $obj = $this->db->fetch_object($result);
@@ -315,7 +315,7 @@ class printing_printgcp extends PrintingDriver
                 }
             }
         }
-        else dol_print_error($db);
+        else dol_print_error($this->db);
 
         $ret = $this->sendPrintToPrinter($printer_id, $file, $fileprint, $mimetype);
         $this->errors = 'PRINTGCP: '.mb_convert_encoding($ret['errormessage'], "UTF-8");
@@ -399,7 +399,7 @@ class printing_printgcp extends PrintingDriver
     function list_jobs()
     {
         global $conf, $db, $langs, $bc;
-        
+
         $error = 0;
         $html = '';
         // Token storage
@@ -489,9 +489,9 @@ class printing_printgcp extends PrintingDriver
         }
         $html .= '</table>';
         $html .= '</div>';
-        
+
         $this->resprint = $html;
-        
+
         return $error;
     }
 
diff --git a/htdocs/core/modules/printing/printipp.modules.php b/htdocs/core/modules/printing/printipp.modules.php
index 5c5ea2a8ecd..2c7a3cb2a05 100644
--- a/htdocs/core/modules/printing/printipp.modules.php
+++ b/htdocs/core/modules/printing/printipp.modules.php
@@ -77,7 +77,7 @@ class printing_printipp extends PrintingDriver
      */
     function print_file($file, $module, $subdir='')
     {
-        global $conf, $user, $db;
+        global $conf, $user;
         $error = 0;
 
         include_once DOL_DOCUMENT_ROOT.'/includes/printipp/CupsPrintIPP.php';
@@ -92,7 +92,7 @@ class printing_printipp extends PrintingDriver
 
         // select printer uri for module order, propal,...
         $sql = "SELECT rowid,printer_id,copy FROM ".MAIN_DB_PREFIX."printing WHERE module = '".$module."' AND driver = 'printipp' AND userid = ".$user->id;
-        $result = $db->query($sql);
+        $result = $this->db->query($sql);
         if ($result)
         {
             $obj = $this->db->fetch_object($result);
@@ -116,7 +116,7 @@ class printing_printipp extends PrintingDriver
                 }
             }
         }
-        else dol_print_error($db);
+        else dol_print_error($this->db);
 
         // Set number of copy
         $ipp->setCopies($obj->copy);
@@ -163,7 +163,7 @@ class printing_printipp extends PrintingDriver
         $var = true;
         foreach ($list as $value)
         {
-            
+
             $printer_det = $this->get_printer_detail($value);
             $html.= "<tr ".$bc[$var].">";
             $html.= '<td>'.$value.'</td>';
diff --git a/htdocs/core/modules/project/mod_project_simple.php b/htdocs/core/modules/project/mod_project_simple.php
index fca1954c48a..05256a3e61f 100644
--- a/htdocs/core/modules/project/mod_project_simple.php
+++ b/htdocs/core/modules/project/mod_project_simple.php
@@ -75,7 +75,7 @@ class mod_project_simple extends ModeleNumRefProjects
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
         $sql.= " FROM ".MAIN_DB_PREFIX."projet";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
         $sql.= " AND entity = ".$conf->entity;
         $resql=$db->query($sql);
         if ($resql)
@@ -111,7 +111,7 @@ class mod_project_simple extends ModeleNumRefProjects
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."projet";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/project/task/mod_task_simple.php b/htdocs/core/modules/project/task/mod_task_simple.php
index fe4087cbd15..1a0aa3e3445 100644
--- a/htdocs/core/modules/project/task/mod_task_simple.php
+++ b/htdocs/core/modules/project/task/mod_task_simple.php
@@ -76,7 +76,7 @@ class mod_task_simple extends ModeleNumRefTask
 		$sql = "SELECT MAX(CAST(SUBSTRING(task.ref FROM " . $posindice . ") AS SIGNED)) as max";
 		$sql .= " FROM " . MAIN_DB_PREFIX . "projet_task AS task, ";
 		$sql .= MAIN_DB_PREFIX . "projet AS project WHERE task.fk_projet=project.rowid";
-		$sql .= " AND task.ref LIKE '" . $this->db->escape($this->prefix) . "____-%'";
+		$sql .= " AND task.ref LIKE '" . $db->escape($this->prefix) . "____-%'";
 		$sql .= " AND project.entity = " . $conf->entity;
         $resql=$db->query($sql);
         if ($resql)
@@ -112,7 +112,7 @@ class mod_task_simple extends ModeleNumRefTask
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."projet_task";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 
 		$resql=$db->query($sql);
 		if ($resql)
diff --git a/htdocs/core/modules/propale/mod_propale_marbre.php b/htdocs/core/modules/propale/mod_propale_marbre.php
index 0e434fb1e38..13bbf9f3d84 100644
--- a/htdocs/core/modules/propale/mod_propale_marbre.php
+++ b/htdocs/core/modules/propale/mod_propale_marbre.php
@@ -75,7 +75,7 @@ class mod_propale_marbre extends ModeleNumRefPropales
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."propal";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -112,7 +112,7 @@ class mod_propale_marbre extends ModeleNumRefPropales
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."propal";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/societe/mod_codecompta_aquarium.php b/htdocs/core/modules/societe/mod_codecompta_aquarium.php
index a8a33bff50e..bdc5f901ec8 100644
--- a/htdocs/core/modules/societe/mod_codecompta_aquarium.php
+++ b/htdocs/core/modules/societe/mod_codecompta_aquarium.php
@@ -159,7 +159,7 @@ class mod_codecompta_aquarium extends ModeleAccountancyCode
 		$sql.= " WHERE ";
 		if ($type == 'customer') $sql.= "code_compta";
 		else if ($type == 'supplier') $sql.= "code_compta_fournisseur";
-		$sql.= " = '".$this->db->escape($code)."'";
+		$sql.= " = '".$db->escape($code)."'";
 		if (! empty($societe->id)) $sql.= " AND rowid <> ".$societe->id;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_cactus.php b/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_cactus.php
index fafde547659..2eaa85261d0 100644
--- a/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_cactus.php
+++ b/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_cactus.php
@@ -82,7 +82,7 @@ class mod_facture_fournisseur_cactus extends ModeleNumRefSuppliersInvoices
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture_fourn";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefixinvoice)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefixinvoice)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 		$resql=$db->query($sql);
 		if ($resql)
@@ -103,7 +103,7 @@ class mod_facture_fournisseur_cactus extends ModeleNumRefSuppliersInvoices
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture_fourn";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefixcreditnote)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefixcreditnote)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -124,7 +124,7 @@ class mod_facture_fournisseur_cactus extends ModeleNumRefSuppliersInvoices
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."facture_fourn";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefixdeposit)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefixdeposit)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php b/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php
index 9788ac4c887..a39e7d004be 100644
--- a/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php
+++ b/htdocs/core/modules/supplier_order/mod_commande_fournisseur_muguet.php
@@ -43,10 +43,10 @@ class mod_commande_fournisseur_muguet extends ModeleNumRefSuppliersOrders
 	function __construct()
 	{
 	    global $conf;
-	    
+
 	    if ((float) $conf->global->MAIN_VERSION_LAST_INSTALL >= 5.0) $this->prefix = 'PO';   // We use correct standard code "PO = Purchase Order"
 	}
-	
+
     /**
      * 	Return description of numbering module
      *
@@ -85,7 +85,7 @@ class mod_commande_fournisseur_muguet extends ModeleNumRefSuppliersOrders
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
         $sql.= " FROM ".MAIN_DB_PREFIX."commande_fournisseur";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
         $sql.= " AND entity = ".$conf->entity;
         $resql=$db->query($sql);
         if ($resql)
@@ -120,7 +120,7 @@ class mod_commande_fournisseur_muguet extends ModeleNumRefSuppliersOrders
         $posindice=8;
         $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
         $sql.= " FROM ".MAIN_DB_PREFIX."commande_fournisseur";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
         $sql.= " AND entity = ".$conf->entity;
 
         $resql=$db->query($sql);
@@ -135,7 +135,7 @@ class mod_commande_fournisseur_muguet extends ModeleNumRefSuppliersOrders
         $date=$object->date_commande;   // Not always defined
         if (empty($date)) $date=$object->date;  // Creation date is order date for suppliers orders
         $yymm = strftime("%y%m",$date);
-        
+
         if ($max >= (pow(10, 4) - 1)) $num=$max+1;	// If counter > 9999, we do not format on 4 chars, we take number as it is
         else $num = sprintf("%04s",$max+1);
 
diff --git a/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php b/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php
index b7eee9a3544..9b0012ec089 100644
--- a/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php
+++ b/htdocs/core/modules/supplier_payment/mod_supplier_payment_bronan.php
@@ -73,7 +73,7 @@ class mod_supplier_payment_bronan extends ModeleNumRefSupplierPayments
 		$posindice=9;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."paiementfourn";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -107,7 +107,7 @@ class mod_supplier_payment_bronan extends ModeleNumRefSupplierPayments
 		$posindice=10;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."paiementfourn";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
diff --git a/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php b/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php
index 26ccb038dda..fa8cf6c6460 100644
--- a/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php
+++ b/htdocs/core/modules/supplier_proposal/mod_supplier_proposal_marbre.php
@@ -75,7 +75,7 @@ class mod_supplier_proposal_marbre extends ModeleNumRefSupplierProposal
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";
 		$sql.= " FROM ".MAIN_DB_PREFIX."supplier_proposal";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);
@@ -112,7 +112,7 @@ class mod_supplier_proposal_marbre extends ModeleNumRefSupplierProposal
 		$posindice=8;
 		$sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".$posindice.") AS SIGNED)) as max";	// This is standard SQL
 		$sql.= " FROM ".MAIN_DB_PREFIX."supplier_proposal";
-		$sql.= " WHERE ref LIKE '".$this->db->escape($this->prefix)."____-%'";
+		$sql.= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
 		$sql.= " AND entity = ".$conf->entity;
 
 		$resql=$db->query($sql);