mirror of
https://github.com/ae-utbm/sith.git
synced 2024-11-15 02:33:22 +00:00
108 lines
3.9 KiB
Python
108 lines
3.9 KiB
Python
from datetime import date, timedelta
|
|
from django.db import models
|
|
from django.utils import timezone
|
|
from django.utils.translation import ugettext_lazy as _
|
|
from django.conf import settings
|
|
|
|
from core.models import User
|
|
|
|
def validate_type(value):
|
|
if value not in settings.AE_SUBSCRIPTIONS.keys():
|
|
raise ValidationError(_('Bad subscription type'))
|
|
|
|
def validate_payment(value):
|
|
if value not in settings.AE_PAYMENT_METHOD:
|
|
raise ValidationError(_('Bad payment method'))
|
|
|
|
class Member(models.Model):
|
|
user = models.OneToOneField(User, primary_key=True)
|
|
|
|
def is_subscribed(self):
|
|
return self.subscriptions.last().is_valid_now()
|
|
|
|
class Subscription(models.Model):
|
|
member = models.ForeignKey(Member, related_name='subscriptions')
|
|
subscription_type = models.CharField(_('subscription type'),
|
|
max_length=255,
|
|
choices=((k.lower().replace(' ', '-'), k) for k in sorted(settings.AE_SUBSCRIPTIONS.keys())))
|
|
subscription_start = models.DateField(_('subscription start'))
|
|
subscription_end = models.DateField(_('subscription end'))
|
|
payment_method = models.CharField(_('payment method'), max_length=255, choices=settings.AE_PAYMENT_METHOD)
|
|
|
|
class Meta:
|
|
ordering = ['subscription_start',]
|
|
|
|
@staticmethod
|
|
def compute_start(d=date.today()):
|
|
"""
|
|
This function computes the start date of the subscription with respect to the given date (default is today),
|
|
and the start date given in settings.AE_START_DATE.
|
|
It takes the nearest past start date.
|
|
Exemples: with AE_START_DATE = (8, 15)
|
|
Today -> Start date
|
|
2015-03-17 -> 2015-02-15
|
|
2015-01-11 -> 2014-08-15
|
|
"""
|
|
today = d
|
|
year = today.year
|
|
start = date(year, settings.AE_START_DATE[0], settings.AE_START_DATE[1])
|
|
start2 = start.replace(month=(start.month+6)%12)
|
|
if start > start2:
|
|
start, start2 = start2, start
|
|
if today < start:
|
|
return start2.replace(year=year-1)
|
|
elif today < start2:
|
|
return start
|
|
else:
|
|
return start2
|
|
|
|
@staticmethod
|
|
def compute_end(duration, start=None):
|
|
"""
|
|
This function compute the end date of the subscription given a start date and a duration in number of semestre
|
|
Exemple:
|
|
Start - Duration -> End date
|
|
2015-09-18 - 1 -> 2016-03-18
|
|
2015-09-18 - 2 -> 2016-09-18
|
|
2015-09-18 - 3 -> 2017-03-18
|
|
2015-09-18 - 4 -> 2017-09-18
|
|
"""
|
|
if start is None:
|
|
start = Subscription.compute_start()
|
|
# This can certainly be simplified, but it works like this
|
|
return start.replace(month=(start.month+6*duration)%12,
|
|
year=start.year+int(duration/2)+(1 if start.month > 6 and duration%2 == 1 else 0))
|
|
|
|
def is_valid_now(self):
|
|
return self.subscription_start <= date.today() and date.today() <= self.subscription_end
|
|
|
|
def guy_test(date):
|
|
print(str(date)+" -> "+str(Subscription.compute_start(date)))
|
|
def bibou_test(duration, date=None):
|
|
print(str(date)+" - "+str(duration)+" -> "+str(Subscription.compute_end(duration, date)))
|
|
def guy():
|
|
guy_test(date(2015, 7, 11))
|
|
guy_test(date(2015, 8, 11))
|
|
guy_test(date(2015, 2, 17))
|
|
guy_test(date(2015, 3, 17))
|
|
guy_test(date(2015, 1, 11))
|
|
guy_test(date(2015, 2, 11))
|
|
guy_test(date(2015, 8, 17))
|
|
guy_test(date(2015, 9, 17))
|
|
print('='*80)
|
|
bibou_test(1, date(2015, 2, 18))
|
|
bibou_test(2, date(2015, 2, 18))
|
|
bibou_test(3, date(2015, 2, 18))
|
|
bibou_test(4, date(2015, 2, 18))
|
|
bibou_test(1, date(2015, 9, 18))
|
|
bibou_test(2, date(2015, 9, 18))
|
|
bibou_test(3, date(2015, 9, 18))
|
|
bibou_test(4, date(2015, 9, 18))
|
|
bibou_test(1)
|
|
bibou_test(2)
|
|
bibou_test(3)
|
|
bibou_test(4)
|
|
|
|
if __name__ == "__main__":
|
|
guy()
|