diff --git a/pylons_app/controllers/users.py b/pylons_app/controllers/users.py
--- a/pylons_app/controllers/users.py
+++ b/pylons_app/controllers/users.py
@@ -23,7 +23,6 @@ users controller for pylons
 @author: marcink
 """
 import logging
-from formencode import htmlfill
 from pylons import request, session, tmpl_context as c, url
 from pylons.controllers.util import abort, redirect
 from pylons.i18n.translation import _
@@ -34,6 +33,7 @@ from pylons_app.model.db import User, Us
 from pylons_app.model.forms import UserForm
 from pylons_app.model.user_model import UserModel
 import formencode
+from formencode import htmlfill
 
 log = logging.getLogger(__name__)
 
@@ -65,15 +65,18 @@ class UsersController(BaseController):
         try:
             form_result = login_form.to_python(dict(request.POST))
             user_model.create(form_result)
-            h.flash(_('created user %s') % form_result['username'], category='success')
-            return redirect(url('users'))
-                           
+            h.flash(_('created user %s') % form_result['username'],
+                    category='success')
         except formencode.Invalid as errors:
             c.form_errors = errors.error_dict
             return htmlfill.render(
                  render('admin/users/user_add.html'),
                 defaults=errors.value,
                 encoding="UTF-8")
+        except Exception:
+            h.flash(_('error occured during creation of user %s') \
+                    % form_result['username'], category='error')            
+        return redirect(url('users'))
     
     def new(self, format='html'):
         """GET /users/new: Form to create a new item"""
@@ -89,12 +92,11 @@ class UsersController(BaseController):
         #           method='put')
         # url('user', id=ID)
         user_model = UserModel()
-        login_form = UserForm(edit=True)()
+        _form = UserForm(edit=True)()
         try:
-            form_result = login_form.to_python(dict(request.POST))
+            form_result = _form.to_python(dict(request.POST))
             user_model.update(id, form_result)
             h.flash(_('User updated succesfully'), category='success')
-            return redirect(url('users'))
                            
         except formencode.Invalid as errors:
             c.user = user_model.get_user(id)
@@ -103,7 +105,12 @@ class UsersController(BaseController):
                  render('admin/users/user_edit.html'),
                 defaults=errors.value,
                 encoding="UTF-8")
-    
+        except Exception:
+            h.flash(_('error occured during update of user %s') \
+                    % form_result['username'], category='error')
+            
+        return redirect(url('users'))
+                    
     def delete(self, id):
         """DELETE /users/id: Delete an existing item"""
         # Forms posted to this method should contain a hidden field:
@@ -112,13 +119,14 @@ class UsersController(BaseController):
         #    h.form(url('user', id=ID),
         #           method='delete')
         # url('user', id=ID)
+        user_model = UserModel()
         try:
-            self.sa.delete(self.sa.query(User).get(id))
-            self.sa.commit()
+            user_model.delete(id)
             h.flash(_('sucessfully deleted user'), category='success')
-        except:
-            self.sa.rollback()
-            raise
+        except Exception:
+            h.flash(_('An error occured during deletion of user'),
+                    category='error')
+        
         return redirect(url('users'))
         
     def show(self, id, format='html'):