from django.db import models
from django.db.models import F, Q
from core.models import PlCoreBase,Site, DashboardView
from django.db import models
from django.db.models import F, Q
from core.models import PlCoreBase,Site, DashboardView
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
from timezones.fields import TimeZoneField
from operator import itemgetter, attrgetter
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
from timezones.fields import TimeZoneField
from operator import itemgetter, attrgetter