bijoe/bijoe/utils.py

99 lines
2.8 KiB
Python

# bijoe - BI dashboard
# Copyright (C) 2015 Entr'ouvert
#
# 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 datetime
import glob
import json
import os
from django.conf import settings
from django.db import connection, transaction
from django.utils.timezone import utc
from django.utils.translation import ugettext as _
try:
from functools import lru_cache
except ImportError:
from django.utils.lru_cache import lru_cache
from .schemas import Warehouse
def get_warehouses_paths():
for pattern in settings.BIJOE_SCHEMAS:
yield from glob.glob(pattern)
if hasattr(connection, 'tenant'):
pattern = os.path.join(connection.tenant.get_directory(), 'schemas', '*.model')
yield from glob.glob(pattern)
@lru_cache()
def get_warehouse_by_path_and_mtime(path, mtime):
with open(path) as fd:
warehouse = json.load(fd)
warehouse['path'] = path
warehouse['timestamp'] = mtime
return Warehouse.from_json(warehouse)
def get_warehouses_by_paths(paths):
warehouses = []
for path in paths:
mtime = os.path.getmtime(path)
warehouses.append(get_warehouse_by_path_and_mtime(path, mtime))
return warehouses
def get_warehouses():
paths = get_warehouses_paths()
return get_warehouses_by_paths(paths)
def human_join(l):
if not l:
return ''
if len(l) == 1:
return l[0]
if len(l) > 2:
l = ', '.join(l[:-1]), l[-1]
return _('{0} and {1}').format(l[0], l[1])
def export_site():
from bijoe.visualization.models import Visualization
return {'visualizations': [v.export_json() for v in Visualization.objects.all()]}
def import_site(data, if_empty=False, clean=False):
from bijoe.visualization.models import Visualization
if if_empty and Visualization.objects.exists():
return
if clean:
Visualization.objects.all().delete()
results = {'created': 0, 'updated': 0}
with transaction.atomic():
for data in data.get('visualizations', []):
created = Visualization.import_json(data)
if created:
results['created'] += 1
else:
results['updated'] += 1
return results