tailbone/tailbone/handler.py

78 lines
2.6 KiB
Python

# -*- coding: utf-8; -*-
################################################################################
#
# Rattail -- Retail Software Framework
# Copyright © 2010-2024 Lance Edgar
#
# This file is part of Rattail.
#
# Rattail is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# Rattail 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 General Public License along with
# Rattail. If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
"""
Tailbone Handler
"""
from mako.lookup import TemplateLookup
from rattail.app import GenericHandler
from rattail.files import resource_path
from tailbone.providers import get_all_providers
class TailboneHandler(GenericHandler):
"""
Base class and default implementation for Tailbone handler.
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# TODO: make templates dir configurable?
templates = [resource_path('rattail:templates/web')]
self.templates = TemplateLookup(directories=templates)
def get_menu_handler(self, **kwargs):
"""
Get the configured "menu" handler.
:returns: The :class:`~tailbone.menus.MenuHandler` instance
for the app.
"""
if not hasattr(self, 'menu_handler'):
spec = self.config.get('tailbone.menus', 'handler',
default='tailbone.menus:MenuHandler')
Handler = self.app.load_object(spec)
self.menu_handler = Handler(self.config)
self.menu_handler.tb = self
return self.menu_handler
def iter_providers(self):
"""
Returns an iterator over all registered Tailbone providers.
"""
providers = get_all_providers(self.config)
return providers.values()
def write_model_view(self, data, path, **kwargs):
"""
Write code for a new model view, based on the given data dict,
to the given path.
"""
template = self.templates.get_template('/new-model-view.mako')
content = template.render(**data)
with open(path, 'wt') as f:
f.write(content)