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import logging
from datetime import datetime, timedelta
from .abstract import AbstractController
from pyaggr3g470r.models import Feed
logger = logging.getLogger(__name__)
DEFAULT_MAX_ERROR = 3
DEFAULT_LIMIT = 5
class FeedController(AbstractController):
_db_cls = Feed
def list_late(self, max_last, max_error=DEFAULT_MAX_ERROR, limit=DEFAULT_LIMIT):
return [feed for feed in self.read(
error_count__lt=max_error, enabled=True,
last_retrieved__lt=max_last)
.order_by('Feed.last_retrieved')
.limit(limit)]
def list_fetchable(self, max_error=DEFAULT_MAX_ERROR, limit=DEFAULT_LIMIT):
from pyaggr3g470r.controllers import UserController
now = datetime.now()
user = UserController(self.user_id).get(id=self.user_id)
max_last = now - timedelta(minutes=user.refresh_rate or 60)
feeds = self.list_late(max_last, max_error, limit)
if feeds:
self.update({'id__in': [feed.id for feed in feeds]},
{'last_retrieved': now})
return feeds
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