for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
# coding: utf8
"""
This software is licensed under the Apache 2 license, quoted below.
Copyright 2014 Crystalnix Limited
Licensed under the Apache License, Version 2.0 (the "License"); you may not
use this file except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
License for the specific language governing permissions and limitations under
the License.
from django.db.models.query import QuerySet
from django.db import models
from django.db.models import Sum
class VersionQuerySet(QuerySet):
def filter_by_enabled(self, *args, **kwargs):
return self.filter(is_enabled=True, *args, **kwargs)
def get_size(self):
return self.aggregate(size=Sum('file_size'))['size'] or 0
class VersionManager(models.Manager):
def get_queryset(self):
return VersionQuerySet(self.model, using=self._db)
def __getattr__(self, name):
if name.startswith('_'):
raise AttributeError
else:
return getattr(self.get_queryset(), name)