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Sith/subscription/models.py

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# -*- coding:utf-8 -*
#
# Copyright 2016,2017
# - Skia <skia@libskia.so>
#
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
# http://ae.utbm.fr.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License a published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#
#
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 django.core.exceptions import ValidationError
from django.core.urlresolvers import reverse
from django.contrib.auth.forms import PasswordResetForm
from core.models import User
from core.utils import get_start_of_semester
def validate_type(value):
if value not in settings.SITH_SUBSCRIPTIONS.keys():
raise ValidationError(_('Bad subscription type'))
def validate_payment(value):
if value not in settings.SITH_SUBSCRIPTION_PAYMENT_METHOD:
raise ValidationError(_('Bad payment method'))
class Subscription(models.Model):
member = models.ForeignKey(User, related_name='subscriptions')
subscription_type = models.CharField(_('subscription type'),
max_length=255,
choices=((k, v['name']) for k, v in sorted(settings.SITH_SUBSCRIPTIONS.items())))
subscription_start = models.DateField(_('subscription start'))
subscription_end = models.DateField(_('subscription end'))
payment_method = models.CharField(_('payment method'),
max_length=255,
choices=settings.SITH_SUBSCRIPTION_PAYMENT_METHOD)
location = models.CharField(choices=settings.SITH_SUBSCRIPTION_LOCATIONS,
max_length=20, verbose_name=_('location'))
class Meta:
ordering = ['subscription_start', ]
def clean(self):
try:
for s in Subscription.objects.filter(member=self.member).exclude(pk=self.pk).all():
if s.is_valid_now() and s.subscription_end - timedelta(weeks=settings.SITH_SUBSCRIPTION_END) > date.today():
raise ValidationError(_("You can not subscribe many time for the same period"))
except: # This should not happen, because the form should have handled the data before, but sadly, it still
# calls the model validation :'(
# TODO see SubscriptionForm's clean method
raise ValidationError(_("Subscription error"))
def save(self):
super(Subscription, self).save()
from counter.models import Customer
if not Customer.objects.filter(user=self.member).exists():
last_id = Customer.objects.count() + 1504 # Number to keep a continuity with the old site
Customer(user=self.member, account_id=Customer.generate_account_id(last_id + 1), amount=0).save()
form = PasswordResetForm({'email': self.member.email})
if form.is_valid():
form.save(use_https=True, email_template_name='core/new_user_email.jinja',
subject_template_name='core/new_user_email_subject.jinja', from_email="ae@utbm.fr")
self.member.make_home()
if settings.IS_OLD_MYSQL_PRESENT:
import MySQLdb
try: # Create subscription on the old site: TODO remove me!
LOCATION = {
"SEVENANS": 5,
"BELFORT": 6,
"MONTBELIARD": 9,
"EBOUTIC": 5,
}
TYPE = {
'un-semestre': 0,
'deux-semestres': 1,
'cursus-tronc-commun': 2,
'cursus-branche': 3,
'membre-honoraire': 4,
'assidu': 5,
'amicale/doceo': 6,
'reseau-ut': 7,
'crous': 8,
'sbarro/esta': 9,
'cursus-alternant': 10,
'welcome-semestre': 11,
'deux-mois-essai': 12,
}
PAYMENT = {
"CHECK": 1,
"CARD": 2,
"CASH": 3,
"OTHER": 4,
"EBOUTIC": 5,
"OTHER": 0,
}
db = MySQLdb.connect(**settings.OLD_MYSQL_INFOS)
c = db.cursor()
c.execute("""INSERT INTO ae_cotisations (id_utilisateur, date_cotis, date_fin_cotis, mode_paiement_cotis,
type_cotis, id_comptoir) VALUES (%s, %s, %s, %s, %s, %s)""", (self.member.id, self.subscription_start,
self.subscription_end, PAYMENT[self.payment_method], TYPE[self.subscription_type],
LOCATION[self.location]))
db.commit()
except Exception as e:
with open(settings.BASE_DIR + "/subscription_fail.log", "a") as f:
print("FAIL to add subscription to %s to old site" % (self.member), file=f)
print("Reason: %s" % (repr(e)), file=f)
db.rollback()
def get_absolute_url(self):
return reverse('core:user_edit', kwargs={'user_id': self.member.pk})
def __str__(self):
if hasattr(self, "member") and self.member is not None:
return self.member.username + ' - ' + str(self.pk)
else:
return 'No user - ' + str(self.pk)
@staticmethod
def compute_start(d=None, duration=1, user=None):
"""
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.SITH_START_DATE.
It takes the nearest past start date.
Exemples: with SITH_START_DATE = (8, 15)
Today -> Start date
2015-03-17 -> 2015-02-15
2015-01-11 -> 2014-08-15
"""
if not d:
d = date.today()
if user is not None and user.subscriptions.exists():
d = user.subscriptions.last().subscription_end
if duration <= 2: # Sliding subscriptions for 1 or 2 semesters
return d
return get_start_of_semester(d)
@staticmethod
def compute_end(duration, start=None, user=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(duration=duration, user=user)
# This can certainly be simplified, but it works like this
try:
return start.replace(month=int(round((start.month - 1 + 6 * duration) % 12 + 1, 0)),
year=int(round(start.year + int(duration / 2) + (1 if int(start.month + 6 * duration) > 12 and (duration % 2 == 1 or duration < 1) else 0), 0)))
except ValueError as e:
return start.replace(day=1, month=int(round((start.month + 6 * duration) % 12 + 1, 0)),
year=int(round(start.year + int(duration / 2) + (1 if int(start.month + 6 * duration) > 12 and (duration % 2 == 1 or duration < 1) else 0), 0)))
def can_be_edited_by(self, user):
return user.is_in_group(settings.SITH_MAIN_BOARD_GROUP) or user.is_root
def is_valid_now(self):
return self.subscription_start <= date.today() and date.today() <= self.subscription_end
def guy_test(date, duration=4):
print(str(date) + " - " + str(duration) + " -> " + str(Subscription.compute_start(date, duration)))
def bibou_test(duration, date=date.today()):
print(str(date) + " - " + str(duration) + " -> " + str(Subscription.compute_end(duration, Subscription.compute_start(date, duration))))
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)
guy_test(date(2015, 7, 11), 1)
guy_test(date(2015, 8, 11), 2)
guy_test(date(2015, 2, 17), 3)
guy_test(date(2015, 3, 17), 4)
guy_test(date(2015, 1, 11), 1)
guy_test(date(2015, 2, 11), 2)
guy_test(date(2015, 8, 17), 3)
guy_test(date(2015, 9, 17), 4)
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))
print('=' * 80)
bibou_test(1, date(2000, 2, 29))
bibou_test(2, date(2000, 2, 29))
bibou_test(1, date(2000, 5, 31))
bibou_test(1, date(2000, 7, 31))
bibou_test(1)
bibou_test(2)
bibou_test(3)
bibou_test(4)
if __name__ == "__main__":
guy()
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