Eos/eos/core/db/mongodb.py

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# Eos - Verifiable elections
# Copyright © 2017 RunasSudo (Yingtong Li)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero 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/>.
import pymongo
import eos.core.db
class MongoDBProvider(eos.core.db.DBProvider):
def connect(self):
self.client = pymongo.MongoClient(self.db_uri, fsync=True)
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self.db = self.client[self.db_name]
def get_all(self, collection):
return self.db[collection].find()
def get_all_by_fields(self, collection, fields):
query = {}
if '_id' in fields:
query['_id'] = fields.pop('_id')
if 'type' in fields:
query['type'] = fields.pop('type')
for field in fields:
query['value.' + field] = fields[field]
return self.db[collection].find(query)
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def get_by_id(self, collection, _id):
return self.db[collection].find_one(_id)
def update_by_id(self, collection, _id, value):
self.db[collection].replace_one({'_id': _id}, value, upsert=True)
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def delete_by_id(self, collection, _id):
self.db[collection].delete_one({'_id': _id})
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def reset_db(self):
self.client.drop_database(self.db_name)
eos.core.db.db_providers['mongodb'] = MongoDBProvider