--- a/src/ztfy/utils/interfaces.py	Fri Sep 21 01:18:08 2012 +0200
+++ b/src/ztfy/utils/interfaces.py	Fri Sep 21 12:36:10 2012 +0200
@@ -179,8 +179,11 @@
                             description=_("Realm name on ZEO server"),
                             required=False)
 
-    def getJSONSettings(self):
+    def getSettings(self):
         """Get ZEO connection setting as a JSON dict"""
 
+    def update(self, settings):
+        """Update internal fields with given settings dict"""
+
     def getConnection(self, wait=False):
         """Open ZEO connection with given settings"""

--- a/src/ztfy/utils/zodb.py	Fri Sep 21 01:18:08 2012 +0200
+++ b/src/ztfy/utils/zodb.py	Fri Sep 21 12:36:10 2012 +0200
@@ -52,18 +52,24 @@
     password = FieldProperty(IZEOConnection['password'])
     server_realm = FieldProperty(IZEOConnection['server_realm'])
 
-    def getJSONSettings(self):
+    def getSettings(self):
+        """Get settings dict"""
         result = []
         for name in getFieldNames(IZEOConnection):
             result[name] = getattr(self, name)
         return result
 
+    def update(self, settings):
+        assert isinstance(settings, dict)
+        for key, value in settings.items():
+            setattr(self, key, value if isinstance(value, int) else unicode(value))
+
     def getConnection(self, wait=False, get_storage=False):
         """Get a tuple made of storage and DB connection for given settings"""
         storage = ClientStorage.ClientStorage((str(self.server_name), self.server_port),
-                                              storage=self.server_storage,
-                                              username=self.server_username or '',
-                                              password=self.server_password or '',
+                                              storage=self.storage,
+                                              username=self.username or '',
+                                              password=self.password or '',
                                               realm=self.server_realm,
                                               wait=wait)
         db = DB(storage)