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# Copyright (C) 2012, Aleksey Lim
#
# This program 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.
#
# 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 General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from gettext import gettext as _
from sugar_network import client
from sugar_network.util import enforce
class Resource(client.Object):
"""Common routines for Sugar Network resources."""
#: Resource name
resource = None
#: List of properties to return from query to avoid
# additional requests to fetch missed properties
reply_properties = None
def __init__(self, guid=None, **filters):
"""Get access to resource object.
If no arguments given, new object will be assumed.
:param guid:
object's GUID to find
:param filters:
a dictionary of properties to find object if `guid`
was not specified
"""
if guid:
client.Object.__init__(self, self.resource, {'guid': guid})
elif not filters:
client.Object.__init__(self, self.resource)
else:
query = self.find(**filters)
enforce(query.total, KeyError, _('No objects found'))
enforce(query.total == 1, _('Found more than one object'))
client.Object.__init__(self, self.resource, query[0])
@classmethod
def find(cls, *args, **kwargs):
"""Query resource objects.
Function accpet the same arguments as `sugar_network.Query()`.
"""
if 'reply_properties' not in kwargs:
kwargs['reply_properties'] = cls.reply_properties
return client.Query(cls.resource, *args, **kwargs)
@classmethod
def delete(cls, guid):
"""Delete resource object.
:param guid:
resource object's GUID
"""
client.delete(cls.resource, guid)
class User(Resource):
resource = 'user'
reply_properties = ['guid', 'nickname', 'color']
@classmethod
def new(cls):
raise RuntimeError(_('Users cannot be created explicitly'))
@classmethod
def delete(cls, guid):
raise RuntimeError(_('Users cannot be deleted explicitly'))
class Context(Resource):
resource = 'context'
reply_properties = ['guid', 'author', 'name', 'title', 'summary']
class Question(Resource):
resource = 'question'
reply_properties = ['guid', 'author', 'title']
class Idea(Resource):
resource = 'idea'
reply_properties = ['guid', 'author', 'title']
class Problem(Resource):
resource = 'problem'
reply_properties = ['guid', 'author', 'title']
class Review(Resource):
resource = 'review'
reply_properties = ['guid', 'author', 'title']
class Solution(Resource):
resource = 'solution'
reply_properties = ['guid', 'author', 'title']
class Artifact(Resource):
resource = 'artifact'
reply_properties = ['guid', 'author', 'title']
class Implementation(Resource):
resource = 'implementation'
reply_properties = ['guid', 'author', 'version', 'date', 'stability']
class Report(Resource):
resource = 'report'
reply_properties = ['guid', 'author', 'title']
class Notification(Resource):
resource = 'notification'
reply_properties = [
'guid', 'author', 'type', 'object_type', 'object', 'to', 'message']
class Comment(Resource):
resource = 'comment'
reply_properties = ['guid', 'author', 'message']
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