settings-forms: put flash message on validation errors to prevent missing out some field input validation problems.

rhodecode/apps/admin/views/settings.py

@@ -1,764 +1,770 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2010-2018 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 
 import logging
 import collections
 
 import datetime
 import formencode
 import formencode.htmlfill
 
 import rhodecode
 from pyramid.view import view_config
 from pyramid.httpexceptions import HTTPFound, HTTPNotFound
 from pyramid.renderers import render
 from pyramid.response import Response
 
 from rhodecode.apps._base import BaseAppView
 from rhodecode.apps.admin.navigation import navigation_list
 from rhodecode.apps.svn_support.config_keys import generate_config
 from rhodecode.lib import helpers as h
 from rhodecode.lib.auth import (
     LoginRequired, HasPermissionAllDecorator, CSRFRequired)
 from rhodecode.lib.celerylib import tasks, run_task
 from rhodecode.lib.utils import repo2db_mapper
 from rhodecode.lib.utils2 import str2bool, safe_unicode, AttributeDict
 from rhodecode.lib.index import searcher_from_config
 
 from rhodecode.model.db import RhodeCodeUi, Repository
 from rhodecode.model.forms import (ApplicationSettingsForm,
     ApplicationUiSettingsForm, ApplicationVisualisationForm,
     LabsSettingsForm, IssueTrackerPatternsForm)
 from rhodecode.model.repo_group import RepoGroupModel
 
 from rhodecode.model.scm import ScmModel
 from rhodecode.model.notification import EmailNotificationModel
 from rhodecode.model.meta import Session
 from rhodecode.model.settings import (
     IssueTrackerSettingsModel, VcsSettingsModel, SettingNotFound,
     SettingsModel)
 
 
 log = logging.getLogger(__name__)
 
 
 class AdminSettingsView(BaseAppView):
 
     def load_default_context(self):
         c = self._get_local_tmpl_context()
         c.labs_active = str2bool(
             rhodecode.CONFIG.get('labs_settings_active', 'true'))
         c.navlist = navigation_list(self.request)
 
         return c
 
     @classmethod
     def _get_ui_settings(cls):
         ret = RhodeCodeUi.query().all()
 
         if not ret:
             raise Exception('Could not get application ui settings !')
         settings = {}
         for each in ret:
             k = each.ui_key
             v = each.ui_value
             if k == '/':
                 k = 'root_path'
 
             if k in ['push_ssl', 'publish', 'enabled']:
                 v = str2bool(v)
 
             if k.find('.') != -1:
                 k = k.replace('.', '_')
 
             if each.ui_section in ['hooks', 'extensions']:
                 v = each.ui_active
 
             settings[each.ui_section + '_' + k] = v
         return settings
 
     @classmethod
     def _form_defaults(cls):
         defaults = SettingsModel().get_all_settings()
         defaults.update(cls._get_ui_settings())
 
         defaults.update({
             'new_svn_branch': '',
             'new_svn_tag': '',
         })
         return defaults
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_vcs', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_vcs(self):
         c = self.load_default_context()
         c.active = 'vcs'
         model = VcsSettingsModel()
         c.svn_branch_patterns = model.get_global_svn_branch_patterns()
         c.svn_tag_patterns = model.get_global_svn_tag_patterns()
 
         settings = self.request.registry.settings
         c.svn_proxy_generate_config = settings[generate_config]
 
         defaults = self._form_defaults()
 
         model.create_largeobjects_dirs_if_needed(defaults['paths_root_path'])
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=defaults,
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_vcs_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_vcs_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'vcs'
 
         model = VcsSettingsModel()
         c.svn_branch_patterns = model.get_global_svn_branch_patterns()
         c.svn_tag_patterns = model.get_global_svn_tag_patterns()
 
         settings = self.request.registry.settings
         c.svn_proxy_generate_config = settings[generate_config]
 
         application_form = ApplicationUiSettingsForm(self.request.translate)()
 
         try:
             form_result = application_form.to_python(dict(self.request.POST))
         except formencode.Invalid as errors:
             h.flash(
                 _("Some form inputs contain invalid data."),
                 category='error')
             data = render('rhodecode:templates/admin/settings/settings.mako',
                           self._get_template_context(c), self.request)
             html = formencode.htmlfill.render(
                 data,
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False
             )
             return Response(html)
 
         try:
             if c.visual.allow_repo_location_change:
                 model.update_global_path_setting(
                     form_result['paths_root_path'])
 
             model.update_global_ssl_setting(form_result['web_push_ssl'])
             model.update_global_hook_settings(form_result)
 
             model.create_or_update_global_svn_settings(form_result)
             model.create_or_update_global_hg_settings(form_result)
             model.create_or_update_global_git_settings(form_result)
             model.create_or_update_global_pr_settings(form_result)
         except Exception:
             log.exception("Exception while updating settings")
             h.flash(_('Error occurred during updating '
                       'application settings'), category='error')
         else:
             Session().commit()
             h.flash(_('Updated VCS settings'), category='success')
             raise HTTPFound(h.route_path('admin_settings_vcs'))
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_vcs_svn_pattern_delete', request_method='POST',
         renderer='json_ext', xhr=True)
     def settings_vcs_delete_svn_pattern(self):
         delete_pattern_id = self.request.POST.get('delete_svn_pattern')
         model = VcsSettingsModel()
         try:
             model.delete_global_svn_pattern(delete_pattern_id)
         except SettingNotFound:
             log.exception(
                 'Failed to delete svn_pattern with id %s', delete_pattern_id)
             raise HTTPNotFound()
 
         Session().commit()
         return True
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_mapping', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_mapping(self):
         c = self.load_default_context()
         c.active = 'mapping'
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_mapping_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_mapping_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'mapping'
         rm_obsolete = self.request.POST.get('destroy', False)
         invalidate_cache = self.request.POST.get('invalidate', False)
         log.debug(
             'rescanning repo location with destroy obsolete=%s', rm_obsolete)
 
         if invalidate_cache:
             log.debug('invalidating all repositories cache')
             for repo in Repository.get_all():
                 ScmModel().mark_for_invalidation(repo.repo_name, delete=True)
 
         filesystem_repos = ScmModel().repo_scan()
         added, removed = repo2db_mapper(filesystem_repos, rm_obsolete)
         _repr = lambda l: ', '.join(map(safe_unicode, l)) or '-'
         h.flash(_('Repositories successfully '
                   'rescanned added: %s ; removed: %s') %
                 (_repr(added), _repr(removed)),
                 category='success')
         raise HTTPFound(h.route_path('admin_settings_mapping'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     @view_config(
         route_name='admin_settings_global', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_global(self):
         c = self.load_default_context()
         c.active = 'global'
         c.personal_repo_group_default_pattern = RepoGroupModel()\
             .get_personal_group_name_pattern()
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     @view_config(
         route_name='admin_settings_global_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_global_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'global'
         c.personal_repo_group_default_pattern = RepoGroupModel()\
             .get_personal_group_name_pattern()
         application_form = ApplicationSettingsForm(self.request.translate)()
         try:
             form_result = application_form.to_python(dict(self.request.POST))
         except formencode.Invalid as errors:
+            h.flash(
+                _("Some form inputs contain invalid data."),
+                category='error')
             data = render('rhodecode:templates/admin/settings/settings.mako',
                           self._get_template_context(c), self.request)
             html = formencode.htmlfill.render(
                 data,
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False
             )
             return Response(html)
 
         settings = [
             ('title', 'rhodecode_title', 'unicode'),
             ('realm', 'rhodecode_realm', 'unicode'),
             ('pre_code', 'rhodecode_pre_code', 'unicode'),
             ('post_code', 'rhodecode_post_code', 'unicode'),
             ('captcha_public_key', 'rhodecode_captcha_public_key', 'unicode'),
             ('captcha_private_key', 'rhodecode_captcha_private_key', 'unicode'),
             ('create_personal_repo_group', 'rhodecode_create_personal_repo_group', 'bool'),
             ('personal_repo_group_pattern', 'rhodecode_personal_repo_group_pattern', 'unicode'),
         ]
         try:
             for setting, form_key, type_ in settings:
                 sett = SettingsModel().create_or_update_setting(
                     setting, form_result[form_key], type_)
                 Session().add(sett)
 
             Session().commit()
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated application settings'), category='success')
         except Exception:
             log.exception("Exception while updating application settings")
             h.flash(
                 _('Error occurred during updating application settings'),
                 category='error')
 
         raise HTTPFound(h.route_path('admin_settings_global'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_visual', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_visual(self):
         c = self.load_default_context()
         c.active = 'visual'
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_visual_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_visual_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'visual'
         application_form = ApplicationVisualisationForm(self.request.translate)()
         try:
             form_result = application_form.to_python(dict(self.request.POST))
         except formencode.Invalid as errors:
+            h.flash(
+                _("Some form inputs contain invalid data."),
+                category='error')
             data = render('rhodecode:templates/admin/settings/settings.mako',
                           self._get_template_context(c), self.request)
             html = formencode.htmlfill.render(
                 data,
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False
             )
             return Response(html)
 
         try:
             settings = [
                 ('show_public_icon', 'rhodecode_show_public_icon', 'bool'),
                 ('show_private_icon', 'rhodecode_show_private_icon', 'bool'),
                 ('stylify_metatags', 'rhodecode_stylify_metatags', 'bool'),
                 ('repository_fields', 'rhodecode_repository_fields', 'bool'),
                 ('dashboard_items', 'rhodecode_dashboard_items', 'int'),
                 ('admin_grid_items', 'rhodecode_admin_grid_items', 'int'),
                 ('show_version', 'rhodecode_show_version', 'bool'),
                 ('use_gravatar', 'rhodecode_use_gravatar', 'bool'),
                 ('markup_renderer', 'rhodecode_markup_renderer', 'unicode'),
                 ('gravatar_url', 'rhodecode_gravatar_url', 'unicode'),
                 ('clone_uri_tmpl', 'rhodecode_clone_uri_tmpl', 'unicode'),
                 ('clone_uri_ssh_tmpl', 'rhodecode_clone_uri_ssh_tmpl', 'unicode'),
                 ('support_url', 'rhodecode_support_url', 'unicode'),
                 ('show_revision_number', 'rhodecode_show_revision_number', 'bool'),
                 ('show_sha_length', 'rhodecode_show_sha_length', 'int'),
             ]
             for setting, form_key, type_ in settings:
                 sett = SettingsModel().create_or_update_setting(
                     setting, form_result[form_key], type_)
                 Session().add(sett)
 
             Session().commit()
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated visualisation settings'), category='success')
         except Exception:
             log.exception("Exception updating visualization settings")
             h.flash(_('Error occurred during updating '
                       'visualisation settings'),
                     category='error')
 
         raise HTTPFound(h.route_path('admin_settings_visual'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_issuetracker', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_issuetracker(self):
         c = self.load_default_context()
         c.active = 'issuetracker'
         defaults = SettingsModel().get_all_settings()
 
         entry_key = 'rhodecode_issuetracker_pat_'
 
         c.issuetracker_entries = {}
         for k, v in defaults.items():
             if k.startswith(entry_key):
                 uid = k[len(entry_key):]
                 c.issuetracker_entries[uid] = None
 
         for uid in c.issuetracker_entries:
             c.issuetracker_entries[uid] = AttributeDict({
                 'pat': defaults.get('rhodecode_issuetracker_pat_' + uid),
                 'url': defaults.get('rhodecode_issuetracker_url_' + uid),
                 'pref': defaults.get('rhodecode_issuetracker_pref_' + uid),
                 'desc': defaults.get('rhodecode_issuetracker_desc_' + uid),
             })
 
         return self._get_template_context(c)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_issuetracker_test', request_method='POST',
         renderer='string', xhr=True)
     def settings_issuetracker_test(self):
         return h.urlify_commit_message(
             self.request.POST.get('test_text', ''),
             'repo_group/test_repo1')
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_issuetracker_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_issuetracker_update(self):
         _ = self.request.translate
         self.load_default_context()
         settings_model = IssueTrackerSettingsModel()
 
         try:
             form = IssueTrackerPatternsForm(self.request.translate)()
             data = form.to_python(self.request.POST)
         except formencode.Invalid as errors:
             log.exception('Failed to add new pattern')
             error = errors
             h.flash(_('Invalid issue tracker pattern: {}'.format(error)),
                     category='error')
             raise HTTPFound(h.route_path('admin_settings_issuetracker'))
 
         if data:
             for uid in data.get('delete_patterns', []):
                 settings_model.delete_entries(uid)
 
             for pattern in data.get('patterns', []):
                 for setting, value, type_ in pattern:
                     sett = settings_model.create_or_update_setting(
                         setting, value, type_)
                     Session().add(sett)
 
                 Session().commit()
 
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated issue tracker entries'), category='success')
         raise HTTPFound(h.route_path('admin_settings_issuetracker'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_issuetracker_delete', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_issuetracker_delete(self):
         _ = self.request.translate
         self.load_default_context()
         uid = self.request.POST.get('uid')
         try:
             IssueTrackerSettingsModel().delete_entries(uid)
         except Exception:
             log.exception('Failed to delete issue tracker setting %s', uid)
             raise HTTPNotFound()
         h.flash(_('Removed issue tracker entry'), category='success')
         raise HTTPFound(h.route_path('admin_settings_issuetracker'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_email', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_email(self):
         c = self.load_default_context()
         c.active = 'email'
         c.rhodecode_ini = rhodecode.CONFIG
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_email_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_email_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'email'
 
         test_email = self.request.POST.get('test_email')
 
         if not test_email:
             h.flash(_('Please enter email address'), category='error')
             raise HTTPFound(h.route_path('admin_settings_email'))
 
         email_kwargs = {
             'date': datetime.datetime.now(),
             'user': c.rhodecode_user,
             'rhodecode_version': c.rhodecode_version
         }
 
         (subject, headers, email_body,
          email_body_plaintext) = EmailNotificationModel().render_email(
             EmailNotificationModel.TYPE_EMAIL_TEST, **email_kwargs)
 
         recipients = [test_email] if test_email else None
 
         run_task(tasks.send_email, recipients, subject,
                  email_body_plaintext, email_body)
 
         h.flash(_('Send email task created'), category='success')
         raise HTTPFound(h.route_path('admin_settings_email'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_hooks', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_hooks(self):
         c = self.load_default_context()
         c.active = 'hooks'
 
         model = SettingsModel()
         c.hooks = model.get_builtin_hooks()
         c.custom_hooks = model.get_custom_hooks()
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_hooks_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     @view_config(
         route_name='admin_settings_hooks_delete', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_hooks_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'hooks'
         if c.visual.allow_custom_hooks_settings:
             ui_key = self.request.POST.get('new_hook_ui_key')
             ui_value = self.request.POST.get('new_hook_ui_value')
 
             hook_id = self.request.POST.get('hook_id')
             new_hook = False
 
             model = SettingsModel()
             try:
                 if ui_value and ui_key:
                     model.create_or_update_hook(ui_key, ui_value)
                     h.flash(_('Added new hook'), category='success')
                     new_hook = True
                 elif hook_id:
                     RhodeCodeUi.delete(hook_id)
                     Session().commit()
 
                 # check for edits
                 update = False
                 _d = self.request.POST.dict_of_lists()
                 for k, v in zip(_d.get('hook_ui_key', []),
                                 _d.get('hook_ui_value_new', [])):
                     model.create_or_update_hook(k, v)
                     update = True
 
                 if update and not new_hook:
                     h.flash(_('Updated hooks'), category='success')
                 Session().commit()
             except Exception:
                 log.exception("Exception during hook creation")
                 h.flash(_('Error occurred during hook creation'),
                         category='error')
 
         raise HTTPFound(h.route_path('admin_settings_hooks'))
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_search', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_search(self):
         c = self.load_default_context()
         c.active = 'search'
 
         searcher = searcher_from_config(self.request.registry.settings)
         c.statistics = searcher.statistics(self.request.translate)
 
         return self._get_template_context(c)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @view_config(
         route_name='admin_settings_labs', request_method='GET',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_labs(self):
         c = self.load_default_context()
         if not c.labs_active:
             raise HTTPFound(h.route_path('admin_settings'))
 
         c.active = 'labs'
         c.lab_settings = _LAB_SETTINGS
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
     @LoginRequired()
     @HasPermissionAllDecorator('hg.admin')
     @CSRFRequired()
     @view_config(
         route_name='admin_settings_labs_update', request_method='POST',
         renderer='rhodecode:templates/admin/settings/settings.mako')
     def settings_labs_update(self):
         _ = self.request.translate
         c = self.load_default_context()
         c.active = 'labs'
 
         application_form = LabsSettingsForm(self.request.translate)()
         try:
             form_result = application_form.to_python(dict(self.request.POST))
         except formencode.Invalid as errors:
             h.flash(
-                _('Some form inputs contain invalid data.'),
+                _("Some form inputs contain invalid data."),
                 category='error')
             data = render('rhodecode:templates/admin/settings/settings.mako',
                           self._get_template_context(c), self.request)
             html = formencode.htmlfill.render(
                 data,
                 defaults=errors.value,
                 errors=errors.error_dict or {},
                 prefix_error=False,
                 encoding="UTF-8",
                 force_defaults=False
             )
             return Response(html)
 
         try:
             session = Session()
             for setting in _LAB_SETTINGS:
                 setting_name = setting.key[len('rhodecode_'):]
                 sett = SettingsModel().create_or_update_setting(
                     setting_name, form_result[setting.key], setting.type)
                 session.add(sett)
 
         except Exception:
             log.exception('Exception while updating lab settings')
             h.flash(_('Error occurred during updating labs settings'),
                     category='error')
         else:
             Session().commit()
             SettingsModel().invalidate_settings_cache()
             h.flash(_('Updated Labs settings'), category='success')
             raise HTTPFound(h.route_path('admin_settings_labs'))
 
         data = render('rhodecode:templates/admin/settings/settings.mako',
                       self._get_template_context(c), self.request)
         html = formencode.htmlfill.render(
             data,
             defaults=self._form_defaults(),
             encoding="UTF-8",
             force_defaults=False
         )
         return Response(html)
 
 
 # :param key: name of the setting including the 'rhodecode_' prefix
 # :param type: the RhodeCodeSetting type to use.
 # :param group: the i18ned group in which we should dispaly this setting
 # :param label: the i18ned label we should display for this setting
 # :param help: the i18ned help we should dispaly for this setting
 LabSetting = collections.namedtuple(
     'LabSetting', ('key', 'type', 'group', 'label', 'help'))
 
 
 # This list has to be kept in sync with the form
 # rhodecode.model.forms.LabsSettingsForm.
 _LAB_SETTINGS = [
 
 ]