kumify/habits/models.py

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2021-01-03 07:42:04 +00:00
from django.db import models
from django.utils import timezone
from colorfield.fields import ColorField
from polymorphic.models import PolymorphicModel
from dateutil.relativedelta import relativedelta
from common.fields import WeekdayField, DayOfMonthField
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# Create your models here.
class Habit(models.Model):
name = models.CharField(max_length=64)
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icon = models.CharField(default="fas fa-user-clock", max_length=64)
color = ColorField(default="#000000")
description = models.TextField(null=True, blank=True)
class HabitSchedule(PolymorphicModel):
habit = models.ForeignKey(Habit, models.CASCADE)
active = models.BooleanField(default=True)
@property
def next_scheduled(self, today=True, now=timezone.now()):
raise NotImplementedError("%s does not implement next_scheduled." % self.__class__)
class MonthlyHabitSchedule(HabitSchedule):
day = DayOfMonthField()
@property
def next_scheduled(self, today=True, now=timezone.now()):
if self.day < now.day:
date = now + relativedelta(months=1) + relativedelta(day=self.day)
elif self.day == now.day:
date = now if today else now + relativedelta(months=1)
else:
date = now + relativedelta(day=self.day)
if date.date() == now.date() and not today:
date = now + relativedelta(months=1) + relativedelta(day=self.day)
return date.date()
class WeeklyHabitSchedule(HabitSchedule):
weekdays = WeekdayField()
@property
def next_scheduled(self, today=True, now=timezone.now()):
found = None
for weekday in self.weekdays:
on = now + relativedelta(weekday=weekday)
if on < now:
on += relativedelta(weeks=1)
if on.day == now.day:
if today:
found = now
break
on += relativedelta(weeks=1)
if (not found) or on.date() < found.date():
found = on
return found.date()
class DailyHabitSchedule(HabitSchedule):
@property
def next_scheduled(self, today=True, now=timezone.now()):
if self.active:
return (now if today else (now + relativedelta(days=1))).date()
class DateHabitSchedule(HabitSchedule):
date = models.DateField()
@property
def next_scheduled(self, today=True, now=timezone.now()):
if self.active and ((self.date > now.date()) or (today and (self.date == now.date()))):
return self.date