utils.py
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from datetime import date
from django.utils import timezone
from django.db.models import Q
from dateutil.parser import parse
from datetime import datetime
from django.utils import formats
from log.models import Log
from pendencies.models import Pendencies
from users.models import User
from fcm_django.models import FCMDevice
from fcm_django.fcm import fcm_send_message
from .models import Notification
def get_resource_users(resource):
if resource.all_students:
return resource.topic.subject.students.all()
return User.objects.filter(Q(resource_students = resource) | Q(group_participants__resource_groups = resource)).distinct()
def notificate():
users = User.objects.all()
for user in users:
notifications = Notification.objects.filter(user = user, viewed = False, creation_date = timezone.now()).count()
if notifications > 0:
device = FCMDevice.objects.filter(user = user, active = True).first()
if not device is None:
device.send_message(data = {"body": notifications, "type": "pendency"})
def set_notifications():
pendencies = Pendencies.objects.filter(begin_date__date__lte = timezone.now(), resource__visible = True)
for pendency in pendencies:
users = get_resource_users(pendency.resource)
subject_begin_date = pendency.resource.topic.subject.init_date
pend_action = pendency.action
resource_type = pendency.resource._my_subclass
resource_key = resource_type + "_id"
resource_id = pendency.resource.id
for user in users:
prev_notify = Notification.objects.filter(user = user, task = pendency).order_by("-creation_date")
notify_type = 1
meta = None
if prev_notify.count() > 0:
last_notify = prev_notify[0]
if last_notify.creation_date == date.today():
continue
if last_notify.meta:
if last_notify.creation_date < date.today() < last_notify.meta.date():
continue
meta = last_notify.meta
notify_type = 2
has_action = Log.objects.filter(user_id = user.id, action = pend_action, resource = resource_type, context__contains = {resource_key: resource_id}, datetime__date__gte = subject_begin_date).exists()
if not has_action:
if pendency.end_date:
if timezone.now() > pendency.end_date:
notify_type = 3
if pendency.limit_date:
if timezone.now() > pendency.limit_date:
notify_type = 4
notification = Notification()
notification.user = user
notification.level = notify_type
notification.task = pendency
notification.meta = meta
notification.save()
notificate()
def get_order_by(order):
if order is None or order == "":
return ["-creation_date"]
if "creation_date" in order:
if "-" in order:
return ["-creation_date"]
else:
return ["creation_date"]
elif "resource" in order:
if "-" in order:
return ["-task__resource__name"]
else:
return ["task__resource__name"]
elif "task" in order:
if "-" in order:
return ["-task__action"]
else:
return ["task__action"]
elif "final_date" in order:
if "-" in order:
return ["-task__limit_date", "-task__end_date"]
else:
return ["task__limit_date", "task__end_date"]
elif "notification" in order:
if "-" in order:
return ["-level"]
else:
return ["level"]
elif "aware" in order:
if "-" in order:
return ["-viewed"]
else:
return ["viewed"]
elif "obs" in order:
if "-" in order:
return ["-meta"]
else:
return ["meta"]
def is_date(string):
try:
parse(string)
return True
except ValueError:
return False
def strToDate(string):
correct_format = formats.get_format("SHORT_DATE_FORMAT")
correct_format = correct_format.split('/')
correct_format = ["%" + x for x in correct_format]
slash_format = '/'.join(correct_format)
hiphen_format = '-'.join(correct_format)
try:
search_date = datetime.strptime(string, slash_format)
search_date = timezone.make_aware(search_date, timezone.get_current_timezone())
except ValueError:
try:
search_date = datetime.strptime(string, hiphen_format)
search_date = timezone.make_aware(search_date, timezone.get_current_timezone())
except ValueError:
search_date = datetime.fromtimestamp(0)
return search_date