db provider: Use connection name instead of potentially empty database name when reporting connection success

Author: jef-n

src/providers/db2/qgsdb2newconnection.cpp

@@ -176,7 +176,7 @@ bool QgsDb2NewConnection::testConnection()
   if ( errMsg.isEmpty() )
   {
     QgsDebugMsg( "connection open succeeded " + connInfo );
-    bar->pushMessage( tr( "Connection to %1 was successful." ).arg( txtDatabase->text() ),
+    bar->pushMessage( tr( "Connection to %1 was successful." ).arg( txtName->text() ),
                       Qgis::Info );
     return true;
   }

src/providers/oracle/qgsoraclenewconnection.cpp

@@ -159,7 +159,7 @@ void QgsOracleNewConnection::testConnection()
   if ( conn )
   {
     // Database successfully opened; we can now issue SQL commands.
-    bar->pushMessage( tr( "Connection to %1 was successful." ).arg( txtDatabase->text() ),
+    bar->pushMessage( tr( "Connection to %1 was successful." ).arg( txtName->text() ),
                       Qgis::Info );
     // free connection resources
     QgsOracleConnPool::instance()->releaseConnection( conn );

src/providers/postgres/qgspgnewconnection.cpp

@@ -205,7 +205,7 @@ void QgsPgNewConnection::testConnection()
   if ( conn )
   {
     // Database successfully opened; we can now issue SQL commands.
-    bar->pushMessage( tr( "Connection to %1 was successful." ).arg( txtDatabase->text() ),
+    bar->pushMessage( tr( "Connection to %1 was successful." ).arg( txtName->text() ),
                       Qgis::Info );
 
     // free pg connection resources