mybuddy/babybuddy/models.py

54 lines
1.6 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.contrib.auth.models import User
from django.db import models
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.utils.timezone import timedelta
class Settings(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
dashboard_refresh_rate = models.DurationField(
verbose_name='Refresh rate',
blank=True,
null=True,
default=timedelta(minutes=1),
choices=[
(None, 'disabled'),
(timedelta(minutes=1), '1 min.'),
(timedelta(minutes=2), '2 min.'),
(timedelta(minutes=3), '3 min.'),
(timedelta(minutes=4), '4 min.'),
(timedelta(minutes=5), '5 min.'),
(timedelta(minutes=10), '10 min.'),
(timedelta(minutes=15), '15 min.'),
(timedelta(minutes=30), '30 min.'),
])
def __str__(self):
return '{}\'s Settings'.format(self.user)
@property
def dashboard_refresh_rate_milliseconds(self):
"""
Convert seconds to milliseconds to be used in a Javascript setInterval
function call.
:return: the refresh rate in milliseconds or None.
"""
if self.dashboard_refresh_rate:
return self.dashboard_refresh_rate.seconds * 1000
return None
@receiver(post_save, sender=User)
def create_user_settings(sender, instance, created, **kwargs):
if created:
Settings.objects.create(user=instance)
@receiver(post_save, sender=User)
def save_user_settings(sender, instance, **kwargs):
instance.settings.save()