else:

                log.warning('user %s is disabled', username)

                raise formencode.Invalid(self.message('disabled_account',

                                         state=State_obj),

                                         value, state,

                                         error_dict=self.e_dict_disable)

class ValidRepoUser(formencode.validators.FancyValidator):

    def to_python(self, value, state):

        sa = meta.Session

        try:

            self.user_db = sa.query(User).filter(User.username == value).one()

        except Exception:

            raise formencode.Invalid(_('This username is not valid'),

                                     value, state)

        return self.user_db.user_id

def ValidRepoName(edit=False):    

    class _ValidRepoName(formencode.validators.FancyValidator):

        def to_python(self, value, state):

            slug = h.repo_name_slug(value)

            sa = meta.Session

            if sa.query(Repository).get(slug) and not edit:

                raise formencode.Invalid(_('This repository already exists'),

                                         value, state)

            return slug 

    return _ValidRepoName

class ValidPerms(formencode.validators.FancyValidator):

    messages = {'perm_new_user_name':_('This username is not valid')}

    def to_python(self, value, state):

        perms_update = []

        perms_new = []

        #build a list of permission to update and new permission to create

        for k, v in value.items():

            if k.startswith('perm_'):

                if  k.startswith('perm_new_user'):

                    new_perm = value.get('perm_new_user', False)

                    new_user = value.get('perm_new_user_name', False)

                    if new_user and new_perm:

                        if (new_user, new_perm) not in perms_new:

                            perms_new.append((new_user, new_perm))

                else: