repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.users_groups_array = repo_model.get_users_groups_js()

    def __load_data(self, group_id):

        """

        Load defaults settings for edit, and update

        :param group_id:

        """

        self.__load_defaults()

        repo_group = RepoGroup.get_or_404(group_id)

        data = repo_group.get_dict()

        data['group_name'] = repo_group.name

        # fill repository users

        for p in repo_group.repo_group_to_perm:

            data.update({'u_perm_%s' % p.user.username:

                             p.permission.permission_name})

        # fill repository groups

        for p in repo_group.users_group_to_perm:

            data.update({'g_perm_%s' % p.users_group.users_group_name:

                             p.permission.permission_name})

            return htmlfill.render(

                render('admin/repos_groups/repos_groups_edit.html'),

                defaults=errors.value,

                errors=errors.error_dict or {},

                prefix_error=False,

                encoding="UTF-8")

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('error occurred during update of repos group %s') \

                    % request.POST.get('group_name'), category='error')

    @HasPermissionAnyDecorator('hg.admin')

    def delete(self, id):

        """DELETE /repos_groups/id: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('repos_group', id=ID),

        #           method='delete')

        # url('repos_group', id=ID)

        gr = RepoGroup.get(id)

        repos = gr.repositories.all()

        if repos:

            h.flash(_('This group contains %s repositores and cannot be '

                      'deleted') % len(repos),

                    category='error')

            return redirect(url('repos_groups'))

        try:

            ReposGroupModel().delete(id)

            Session().commit()

            #TODO: in future action_logger(, '', '', '', self.sa)

        except IntegrityError, e:

                log.error(traceback.format_exc())

                h.flash(_('Cannot delete this group it still contains '

                          'subgroups'),

                        category='warning')

            else:

                log.error(traceback.format_exc())

                h.flash(_('error occurred during deletion of repos '

                          'group %s') % gr.group_name, category='error')

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('error occurred during deletion of repos '

    __table_args__ = (

        UniqueConstraint('group_name', 'group_parent_id'),

        CheckConstraint('group_id != group_parent_id'),

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'},

    )

    __mapper_args__ = {'order_by': 'group_name'}

    group_id = Column("group_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    group_name = Column("group_name", String(255, convert_unicode=False, assert_unicode=None), nullable=False, unique=True, default=None)

    group_parent_id = Column("group_parent_id", Integer(), ForeignKey('groups.group_id'), nullable=True, unique=None, default=None)

    group_description = Column("group_description", String(10000, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    repo_group_to_perm = relationship('UserRepoGroupToPerm', cascade='all', order_by='UserRepoGroupToPerm.group_to_perm_id')

    users_group_to_perm = relationship('UsersGroupRepoGroupToPerm', cascade='all')

    parent_group = relationship('RepoGroup', remote_side=group_id)

    def __init__(self, group_name='', parent_group=None):

        self.group_name = group_name

        self.parent_group = parent_group

    def __unicode__(self):

        return u"<%s('%s:%s')>" % (self.__class__.__name__, self.group_id,

    def repositories_recursive_count(self):

        cnt = self.repositories.count()

        def children_count(group):

            cnt = 0

            for child in group.children:

                cnt += child.repositories.count()

                cnt += children_count(child)

            return cnt

        return cnt + children_count(self)

    def get_new_name(self, group_name):

        """

        returns new full group name based on parent and new name

        :param group_name:

        """

        path_prefix = (self.parent_group.full_path_splitted if

                       self.parent_group else [])

        return RepoGroup.url_sep().join(path_prefix + [group_name])

class Permission(Base, BaseModel):

def ReposGroupForm(edit=False, old_data={}, available_groups=[]):

    class _ReposGroupForm(formencode.Schema):

        allow_extra_fields = True

        filter_extra_fields = False

        group_name = All(v.UnicodeString(strip=True, min=1, not_empty=True),

                               v.SlugifyName())

        group_description = v.UnicodeString(strip=True, min=1,

                                                not_empty=True)

        group_parent_id = v.OneOf(available_groups, hideList=False,

                                        testValueList=True,

                                        if_missing=None, not_empty=False)

        chained_validators = [v.ValidReposGroup(edit, old_data),

                              v.ValidPerms('group')]

    return _ReposGroupForm

def RegisterForm(edit=False, old_data={}):

    class _RegisterForm(formencode.Schema):

        allow_extra_fields = True

        filter_extra_fields = True

        username = All(

            v.ValidUsername(edit, old_data),

                    )

                else:

                    ReposGroupModel().grant_users_group_permission(

                        repos_group=repos_group, group_name=member, perm=perm

                    )

            old_path = repos_group.full_path

            # change properties

            repos_group.group_description = form_data['group_description']

            repos_group.parent_group = RepoGroup.get(form_data['group_parent_id'])

            repos_group.group_parent_id = form_data['group_parent_id']

            repos_group.group_name = repos_group.get_new_name(form_data['group_name'])

            new_path = repos_group.full_path

            self.sa.add(repos_group)

            # we need to get all repositories from this new group and

            # rename them accordingly to new group path

            for r in repos_group.repositories:

                r.repo_name = r.get_new_name(r.just_name)

                self.sa.add(r)

            self.__rename_group(old_path, new_path)

            return repos_group

        except:

            log.error(traceback.format_exc())

            raise

	             </div>

	             <div class="input">

	                 ${h.select('group_parent_id','',c.repo_groups,class_="medium")}

	             </div>

	         </div>

            <div class="field">

                <div class="label">

                    <label for="input">${_('Permissions')}:</label>

                </div>

                <div class="input">

                    <%include file="repos_group_edit_perms.html"/>

                </div>

            </div>

            <div class="buttons">

              ${h.submit('save',_('Save'),class_="ui-btn large")}

              ${h.reset('reset',_('Reset'),class_="ui-btn large")}

            </div>

        </div>

    </div>

    ${h.end_form()}

</div>

</%def>