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mirror of https://gitlab.crans.org/bde/nk20 synced 2024-12-23 16:02:25 +00:00
nk20/apps/member/models.py
2020-04-01 18:47:56 +02:00

277 lines
8.3 KiB
Python

# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later
import datetime
from django.conf import settings
from django.contrib.auth.models import User
from django.core.exceptions import ValidationError
from django.db import models
from django.urls import reverse, reverse_lazy
from django.utils.translation import gettext_lazy as _
from note.models import MembershipTransaction
class Profile(models.Model):
"""
An user profile
We do not want to patch the Django Contrib :model:`auth.User`model;
so this model add an user profile with additional information.
"""
user = models.OneToOneField(
settings.AUTH_USER_MODEL,
on_delete=models.CASCADE,
)
phone_number = models.CharField(
verbose_name=_('phone number'),
max_length=50,
blank=True,
null=True,
)
section = models.CharField(
verbose_name=_('section'),
help_text=_('e.g. "1A0", "9A♥", "SAPHIRE"'),
max_length=255,
blank=True,
null=True,
)
address = models.CharField(
verbose_name=_('address'),
max_length=255,
blank=True,
null=True,
)
paid = models.BooleanField(
verbose_name=_("paid"),
default=False,
)
class Meta:
verbose_name = _('user profile')
verbose_name_plural = _('user profile')
indexes = [models.Index(fields=['user'])]
def get_absolute_url(self):
return reverse('user_detail', args=(self.pk,))
class Club(models.Model):
"""
A club is a group of people, whose membership is handle by their
:model:`member.Membership`, and gives access to right defined by a :model:`member.Role`.
"""
name = models.CharField(
verbose_name=_('name'),
max_length=255,
unique=True,
)
email = models.EmailField(
verbose_name=_('email'),
)
parent_club = models.ForeignKey(
'self',
null=True,
blank=True,
on_delete=models.PROTECT,
verbose_name=_('parent club'),
)
# Memberships
# When set to False, the membership system won't be used.
# Useful to create notes for activities or departments.
require_memberships = models.BooleanField(
default=True,
verbose_name=_("require memberships"),
help_text=_("Uncheck if this club don't require memberships."),
)
membership_fee_paid = models.PositiveIntegerField(
default=0,
verbose_name=_('membership fee (paid students)'),
)
membership_fee_unpaid = models.PositiveIntegerField(
default=0,
verbose_name=_('membership fee (unpaid students)'),
)
membership_duration = models.PositiveIntegerField(
blank=True,
null=True,
verbose_name=_('membership duration'),
help_text=_('The longest time (in days) a membership can last '
'(NULL = infinite).'),
)
membership_start = models.DateField(
blank=True,
null=True,
verbose_name=_('membership start'),
help_text=_('How long after January 1st the members can renew '
'their membership.'),
)
membership_end = models.DateField(
blank=True,
null=True,
verbose_name=_('membership end'),
help_text=_('How long the membership can last after January 1st '
'of the next year after members can renew their '
'membership.'),
)
def update_membership_dates(self):
"""
This function is called each time the club detail view is displayed.
Update the year of the membership dates.
"""
if not self.membership_start:
return
today = datetime.date.today()
if (today - self.membership_start).days >= 365:
self.membership_start = datetime.date(self.membership_start.year + 1,
self.membership_start.month, self.membership_start.day)
self.membership_end = datetime.date(self.membership_end.year + 1,
self.membership_end.month, self.membership_end.day)
self.save(force_update=True)
def save(self, force_insert=False, force_update=False, using=None,
update_fields=None):
if not self.require_memberships:
self.membership_fee_paid = 0
self.membership_fee_unpaid = 0
self.membership_duration = None
self.membership_start = None
self.membership_end = None
super().save(force_insert, force_update, update_fields)
class Meta:
verbose_name = _("club")
verbose_name_plural = _("clubs")
def __str__(self):
return self.name
def get_absolute_url(self):
return reverse_lazy('member:club_detail', args=(self.pk,))
class Role(models.Model):
"""
Role that an :model:`auth.User` can have in a :model:`member.Club`
"""
name = models.CharField(
verbose_name=_('name'),
max_length=255,
unique=True,
)
class Meta:
verbose_name = _('role')
verbose_name_plural = _('roles')
def __str__(self):
return str(self.name)
class Membership(models.Model):
"""
Register the membership of a user to a club, including roles and membership duration.
"""
user = models.ForeignKey(
User,
on_delete=models.PROTECT,
verbose_name=_("user"),
)
club = models.ForeignKey(
Club,
on_delete=models.PROTECT,
verbose_name=_("club"),
)
roles = models.ManyToManyField(
Role,
verbose_name=_("roles"),
)
date_start = models.DateField(
verbose_name=_('membership starts on'),
)
date_end = models.DateField(
verbose_name=_('membership ends on'),
null=True,
)
fee = models.PositiveIntegerField(
verbose_name=_('fee'),
)
def valid(self):
if self.date_end is not None:
return self.date_start.toordinal() <= datetime.datetime.now().toordinal() < self.date_end.toordinal()
else:
return self.date_start.toordinal() <= datetime.datetime.now().toordinal()
def save(self, *args, **kwargs):
if self.club.parent_club is not None:
if not Membership.objects.filter(user=self.user, club=self.club.parent_club).exists():
raise ValidationError(_('User is not a member of the parent club') + ' ' + self.club.parent_club.name)
created = not self.pk
if created:
if Membership.objects.filter(
user=self.user,
club=self.club,
date_start__lte=self.date_start,
date_end__gte=self.date_start,
).exists():
raise ValidationError(_('User is already a member of the club'))
if self.user.profile.paid:
self.fee = self.club.membership_fee_paid
else:
self.fee = self.club.membership_fee_unpaid
if self.club.membership_duration is not None:
self.date_end = self.date_start + datetime.timedelta(days=self.club.membership_duration)
else:
self.date_end = self.date_start + datetime.timedelta(days=424242)
if self.club.membership_end is not None and self.date_end > self.club.membership_end:
self.date_end = self.club.membership_end
super().save(*args, **kwargs)
self.make_transaction()
def make_transaction(self):
if not self.fee or MembershipTransaction.objects.filter(membership=self).exists():
return
if self.fee:
transaction = MembershipTransaction(
membership=self,
source=self.user.note,
destination=self.club.note,
quantity=1,
amount=self.fee,
reason="Adhésion " + self.club.name,
)
transaction._force_save = True
transaction.save(force_insert=True)
def __str__(self):
return _("Membership of {user} for the club {club}").format(user=self.user.username, club=self.club.name, )
class Meta:
verbose_name = _('membership')
verbose_name_plural = _('memberships')
indexes = [models.Index(fields=['user'])]