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re2o/cotisations/models.py
Hugo Levy-Falk 8df5a05d89 Do not display unnecessary warnings.
2019-09-19 22:55:16 +02:00

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# -*- mode: python; coding: utf-8 -*-
# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2017 Gabriel Détraz
# Copyright © 2017 Goulven Kermarec
# Copyright © 2017 Augustin Lemesle
# Copyright © 2018 Hugo Levy-Falk
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
The database models for the 'cotisation' app of re2o.
The goal is to keep the main actions here, i.e. the 'clean' and 'save'
function are higly reposnsible for the changes, checking the coherence of the
data and the good behaviour in general for not breaking the database.
For further details on each of those models, see the documentation details for
each.
"""
from __future__ import unicode_literals
from dateutil.relativedelta import relativedelta
from django.db import models
from django.db.models import Q, Max
from django.db.models.signals import post_save, post_delete
from django.dispatch import receiver
from django.forms import ValidationError
from django.core.validators import MinValueValidator
from django.utils import timezone
from django.utils.translation import ugettext_lazy as _
from django.urls import reverse
from django.shortcuts import redirect
from django.contrib import messages
from preferences.models import CotisationsOption
from machines.models import regen
from re2o.field_permissions import FieldPermissionModelMixin
from re2o.mixins import AclMixin, RevMixin
from cotisations.utils import (
find_payment_method, send_mail_invoice, send_mail_voucher
)
from cotisations.validators import check_no_balance
class BaseInvoice(RevMixin, AclMixin, FieldPermissionModelMixin, models.Model):
date = models.DateTimeField(
auto_now_add=True,
verbose_name=_("Date")
)
# TODO : change prix to price
def prix(self):
"""
Returns: the raw price without the quantities.
Deprecated, use :total_price instead.
"""
price = Vente.objects.filter(
facture=self
).aggregate(models.Sum('prix'))['prix__sum']
return price
# TODO : change prix to price
def prix_total(self):
"""
Returns: the total price for an invoice. Sum all the articles' prices
and take the quantities into account.
"""
# TODO : change Vente to somethingelse
return Vente.objects.filter(
facture=self
).aggregate(
total=models.Sum(
models.F('prix')*models.F('number'),
output_field=models.DecimalField()
)
)['total'] or 0
def name(self):
"""
Returns : a string with the name of all the articles in the invoice.
Used for reprensenting the invoice with a string.
"""
name = ' - '.join(Vente.objects.filter(
facture=self
).values_list('name', flat=True))
return name
# TODO : change facture to invoice
class Facture(BaseInvoice):
"""
The model for an invoice. It reprensents the fact that a user paid for
something (it can be multiple article paid at once).
An invoice is linked to :
* one or more purchases (one for each article sold that time)
* a user (the one who bought those articles)
* a payment method (the one used by the user)
* (if applicable) a bank
* (if applicable) a cheque number.
Every invoice is dated throught the 'date' value.
An invoice has a 'controlled' value (default : False) which means that
someone with high enough rights has controlled that invoice and taken it
into account. It also has a 'valid' value (default : True) which means
that someone with high enough rights has decided that this invoice was not
valid (thus it's like the user never paid for his articles). It may be
necessary in case of non-payment.
"""
user = models.ForeignKey('users.User', on_delete=models.PROTECT)
# TODO : change paiement to payment
paiement = models.ForeignKey('Paiement', on_delete=models.PROTECT)
# TODO : change banque to bank
banque = models.ForeignKey(
'Banque',
on_delete=models.PROTECT,
blank=True,
null=True
)
# TODO : maybe change to cheque nummber because not evident
cheque = models.CharField(
max_length=255,
blank=True,
verbose_name=_("cheque number")
)
# TODO : change name to validity for clarity
valid = models.BooleanField(
default=False,
verbose_name=_("validated")
)
# TODO : changed name to controlled for clarity
control = models.BooleanField(
default=False,
verbose_name=_("controlled")
)
class Meta:
abstract = False
permissions = (
# TODO : change facture to invoice
('change_facture_control',
_("Can edit the \"controlled\" state")),
('view_facture',
_("Can view an invoice object")),
('change_all_facture',
_("Can edit all the previous invoices")),
)
verbose_name = _("invoice")
verbose_name_plural = _("invoices")
def linked_objects(self):
"""Return linked objects : machine and domain.
Usefull in history display"""
return self.vente_set.all()
def can_edit(self, user_request, *args, **kwargs):
user_can, _message, permissions = self.user.can_edit(
user_request, *args, **kwargs)
if not user_request.has_perm('cotisations.change_facture'):
return (
False,
_("You don't have the right to edit an invoice."),
('cotisations.change_facture',)
)
elif not user_request.has_perm('cotisations.change_all_facture') and \
not user_can:
return (
False,
_("You don't have the right to edit this user's invoices."),
('cotisations.change_all_facture',) + permissions
)
elif not user_request.has_perm('cotisations.change_all_facture') and \
(self.control or not self.valid):
return (
False,
_("You don't have the right to edit an invoice "
"already controlled or invalidated."),
('cotisations.change_all_facture',)
)
else:
return True, None, None
def can_delete(self, user_request, *args, **kwargs):
user_can, _message, permissions = self.user.can_edit(
user_request, *args, **kwargs)
if not user_request.has_perm('cotisations.delete_facture'):
return (
False,
_("You don't have the right to delete an invoice."),
('cotisations.delete_facture',)
)
elif not user_request.has_perm('cotisations.change_all_facture') and \
not user_can:
return (
False,
_("You don't have the right to delete this user's invoices."),
('cotisations.change_all_facture',) + permissions
)
elif not user_request.has_perm('cotisations.change_all_facture') and \
(self.control or not self.valid):
return (
False,
_("You don't have the right to delete an invoice "
"already controlled or invalidated."),
('cotisations.change_all_facture',)
)
else:
return True, None, None
def can_view(self, user_request, *_args, **_kwargs):
if not user_request.has_perm('cotisations.view_facture'):
if self.user != user_request:
return (
False,
_("You don't have the right to view someone else's "
"invoices history."),
('cotisations.view_facture',)
)
elif not self.valid:
return (
False,
_("The invoice has been invalidated."),
('cotisations.view_facture',)
)
else:
return True, None, None
else:
return True, None, None
@staticmethod
def can_change_control(user_request, *_args, **_kwargs):
""" Returns True if the user can change the 'controlled' status of
this invoice """
can = user_request.has_perm('cotisations.change_facture_control')
return (
can,
_("You don't have the right to edit the \"controlled\" state.") if not can else None,
('cotisations.change_facture_control',)
)
@staticmethod
def can_create(user_request, *_args, **_kwargs):
"""Check if a user can create an invoice.
:param user_request: The user who wants to create an invoice.
:return: a message and a boolean which is True if the user can create
an invoice or if the `options.allow_self_subscription` is set.
"""
if user_request.has_perm('cotisations.add_facture'):
return True, None, None
if len(Paiement.find_allowed_payments(user_request)) <= 0:
return False, _("There are no payment method which you can use."), ('cotisations.add_facture',)
if len(Article.find_allowed_articles(user_request, user_request)) <= 0:
return False, _("There are no article that you can buy."), ('cotisations.add_facture',)
return True, None, None
def __init__(self, *args, **kwargs):
super(Facture, self).__init__(*args, **kwargs)
self.field_permissions = {
'control': self.can_change_control,
}
self.__original_valid = self.valid
self.__original_control = self.control
def get_subscription(self):
"""Returns every subscription associated with this invoice."""
return Cotisation.objects.filter(
vente__in=self.vente_set.filter(
Q(type_cotisation='All') |
Q(type_cotisation='Adhesion')
)
)
def is_subscription(self):
"""Returns True if this invoice contains at least one subscribtion."""
return bool(self.get_subscription())
def save(self, *args, **kwargs):
super(Facture, self).save(*args, **kwargs)
if not self.__original_valid and self.valid:
send_mail_invoice(self)
if self.is_subscription() \
and not self.__original_control \
and self.control \
and CotisationsOption.get_cached_value('send_voucher_mail'):
send_mail_voucher(self)
def __str__(self):
return str(self.user) + ' ' + str(self.date)
@receiver(post_save, sender=Facture)
def facture_post_save(**kwargs):
"""
Synchronise the LDAP user after an invoice has been saved.
"""
facture = kwargs['instance']
if facture.valid:
user = facture.user
user.set_active()
user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
@receiver(post_delete, sender=Facture)
def facture_post_delete(**kwargs):
"""
Synchronise the LDAP user after an invoice has been deleted.
"""
user = kwargs['instance'].user
user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
class CustomInvoice(BaseInvoice):
class Meta:
permissions = (
('view_custominvoice', _("Can view a custom invoice object")),
)
recipient = models.CharField(
max_length=255,
verbose_name=_("Recipient")
)
payment = models.CharField(
max_length=255,
verbose_name=_("Payment type")
)
address = models.CharField(
max_length=255,
verbose_name=_("Address")
)
paid = models.BooleanField(
verbose_name=_("Paid"),
default=False
)
remark = models.TextField(
verbose_name=_("Remark"),
blank=True,
null=True
)
class CostEstimate(CustomInvoice):
class Meta:
permissions = (
('view_costestimate', _("Can view a cost estimate object")),
)
validity = models.DurationField(
verbose_name=_("Period of validity"),
help_text="DD HH:MM:SS"
)
final_invoice = models.ForeignKey(
CustomInvoice,
on_delete=models.SET_NULL,
null=True,
blank=True,
related_name="origin_cost_estimate",
primary_key=False
)
def create_invoice(self):
"""Create a CustomInvoice from the CostEstimate."""
if self.final_invoice is not None:
return self.final_invoice
invoice = CustomInvoice()
invoice.recipient = self.recipient
invoice.payment = self.payment
invoice.address = self.address
invoice.paid = False
invoice.remark = self.remark
invoice.date = timezone.now()
invoice.save()
self.final_invoice = invoice
self.save()
for sale in self.vente_set.all():
Vente.objects.create(
facture=invoice,
name=sale.name,
prix=sale.prix,
number=sale.number,
)
return invoice
def can_delete(self, user_request, *args, **kwargs):
if not user_request.has_perm('cotisations.delete_costestimate'):
return (
False,
_("You don't have the right to delete a cost estimate."),
('cotisations.delete_costestimate',)
)
if self.final_invoice is not None:
return (
False,
_("The cost estimate has an invoice and can't be deleted."),
None
)
return True, None, None
# TODO : change Vente to Purchase
class Vente(RevMixin, AclMixin, models.Model):
"""
The model defining a purchase. It consist of one type of article being
sold. In particular there may be multiple purchases in a single invoice.
It's reprensentated by:
* an amount (the number of items sold)
* an invoice (whose the purchase is part of)
* an article
* (if applicable) a cotisation (which holds some informations about
the effect of the purchase on the time agreed for this user)
"""
# TODO : change this to English
COTISATION_TYPE = (
('Connexion', _("Connection")),
('Adhesion', _("Membership")),
('All', _("Both of them")),
)
# TODO : change facture to invoice
facture = models.ForeignKey(
'BaseInvoice',
on_delete=models.CASCADE,
verbose_name=_("invoice")
)
# TODO : change number to amount for clarity
number = models.IntegerField(
validators=[MinValueValidator(1)],
verbose_name=_("amount")
)
# TODO : change this field for a ForeinKey to Article
name = models.CharField(
max_length=255,
verbose_name=_("article")
)
# TODO : change prix to price
# TODO : this field is not needed if you use Article ForeignKey
prix = models.DecimalField(
max_digits=5,
decimal_places=2,
verbose_name=_("price"))
# TODO : this field is not needed if you use Article ForeignKey
duration = models.PositiveIntegerField(
blank=True,
null=True,
verbose_name=_("duration (in months)")
)
# TODO : this field is not needed if you use Article ForeignKey
type_cotisation = models.CharField(
choices=COTISATION_TYPE,
blank=True,
null=True,
max_length=255,
verbose_name=_("subscription type")
)
class Meta:
permissions = (
('view_vente', _("Can view a purchase object")),
('change_all_vente', _("Can edit all the previous purchases")),
)
verbose_name = _("purchase")
verbose_name_plural = _("purchases")
# TODO : change prix_total to total_price
def prix_total(self):
"""
Returns: the total of price for this amount of items.
"""
return self.prix*self.number
def update_cotisation(self):
"""
Update the related object 'cotisation' if there is one. Based on the
duration of the purchase.
"""
if hasattr(self, 'cotisation'):
cotisation = self.cotisation
cotisation.date_end = cotisation.date_start + relativedelta(
months=self.duration*self.number)
return
def create_cotis(self, date_start=False):
"""
Update and create a 'cotisation' related object if there is a
cotisation_type defined (which means the article sold represents
a cotisation)
"""
try:
invoice = self.facture.facture
except Facture.DoesNotExist:
return
if not hasattr(self, 'cotisation') and self.type_cotisation:
cotisation = Cotisation(vente=self)
cotisation.type_cotisation = self.type_cotisation
if date_start:
end_cotisation = Cotisation.objects.filter(
vente__in=Vente.objects.filter(
facture__in=Facture.objects.filter(
user=invoice.user
).exclude(valid=False))
).filter(
Q(type_cotisation='All') |
Q(type_cotisation=self.type_cotisation)
).filter(
date_start__lt=date_start
).aggregate(Max('date_end'))['date_end__max']
elif self.type_cotisation == "Adhesion":
end_cotisation = invoice.user.end_adhesion()
else:
end_cotisation = invoice.user.end_connexion()
date_start = date_start or timezone.now()
end_cotisation = end_cotisation or date_start
date_max = max(end_cotisation, date_start)
cotisation.date_start = date_max
cotisation.date_end = cotisation.date_start + relativedelta(
months=self.duration*self.number
)
return
def save(self, *args, **kwargs):
"""
Save a purchase object and check if all the fields are coherents
It also update the associated cotisation in the changes have some
effect on the user's cotisation
"""
# Checking that if a cotisation is specified, there is also a duration
if self.type_cotisation and not self.duration:
raise ValidationError(
_("Duration must be specified for a subscription.")
)
self.update_cotisation()
super(Vente, self).save(*args, **kwargs)
def can_edit(self, user_request, *args, **kwargs):
user_can, _message, permissions = self.facture.user.can_edit(
user_request, *args, **kwargs
)
if not user_request.has_perm('cotisations.change_vente'):
return (
False,
_("You don't have the right to edit the purchases."),
('cotisations.change_vente',)
)
elif not (
user_request.has_perm('cotisations.change_all_facture') or
user_can):
return (
False,
_("You don't have the right to edit this user's purchases."),
('cotisations.change_all_facture',) + permissions
)
elif (not user_request.has_perm('cotisations.change_all_vente') and
(self.facture.control or not self.facture.valid)):
return (
False,
_("You don't have the right to edit a purchase "
"already controlled or invalidated."),
('cotisations.change_all_vente',)
)
else:
return True, None, None
def can_delete(self, user_request, *args, **kwargs):
user_can, _message, permissions = self.facture.user.can_edit(
user_request, *args, **kwargs)
if not user_request.has_perm('cotisations.delete_vente'):
return (
False,
_("You don't have the right to delete a purchase."),
('cotisations.delete_vente',)
)
if not user_can:
return (
False,
_("You don't have the right to delete this user's purchases."),
permissions
)
if self.facture.control or not self.facture.valid:
return False, _("You don't have the right to delete a purchase "
"already controlled or invalidated."), None
else:
return True, None, None
def can_view(self, user_request, *_args, **_kwargs):
if (not user_request.has_perm('cotisations.view_vente') and
self.facture.user != user_request):
return (
False,
_("You don't have the right to view someone "
"else's purchase history."),
('cotisations.view_vente',)
)
else:
return True, None, None
def __str__(self):
return str(self.name) + ' ' + str(self.facture)
# TODO : change vente to purchase
@receiver(post_save, sender=Vente)
def vente_post_save(**kwargs):
"""
Creates a 'cotisation' related object if needed and synchronise the
LDAP user when a purchase has been saved.
"""
purchase = kwargs['instance']
try:
purchase.facture.facture
except Facture.DoesNotExist:
return
if hasattr(purchase, 'cotisation'):
purchase.cotisation.vente = purchase
purchase.cotisation.save()
if purchase.type_cotisation:
purchase.create_cotis()
purchase.cotisation.save()
user = purchase.facture.facture.user
user.set_active()
user.ldap_sync(base=True, access_refresh=True, mac_refresh=False)
# TODO : change vente to purchase
@receiver(post_delete, sender=Vente)
def vente_post_delete(**kwargs):
"""
Synchronise the LDAP user after a purchase has been deleted.
"""
purchase = kwargs['instance']
try:
invoice = purchase.facture.facture
except Facture.DoesNotExist:
return
if purchase.type_cotisation:
user = invoice.user
user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
class Article(RevMixin, AclMixin, models.Model):
"""
The definition of an article model. It represents a type of object
that can be sold to the user.
It's represented by:
* a name
* a price
* a cotisation type (indicating if this article reprensents a
cotisation or not)
* a duration (if it is a cotisation)
* a type of user (indicating what kind of user can buy this article)
"""
# TODO : Either use TYPE or TYPES in both choices but not both
USER_TYPES = (
('Adherent', _("Member")),
('Club', _("Club")),
('All', _("Both of them")),
)
COTISATION_TYPE = (
('Connexion', _("Connection")),
('Adhesion', _("Membership")),
('All', _("Both of them")),
)
name = models.CharField(
max_length=255,
verbose_name=_("designation")
)
# TODO : change prix to price
prix = models.DecimalField(
max_digits=5,
decimal_places=2,
verbose_name=_("unit price")
)
duration = models.PositiveIntegerField(
blank=True,
null=True,
validators=[MinValueValidator(0)],
verbose_name=_("duration (in months)")
)
type_user = models.CharField(
choices=USER_TYPES,
default='All',
max_length=255,
verbose_name=_("type of users concerned")
)
type_cotisation = models.CharField(
choices=COTISATION_TYPE,
default=None,
blank=True,
null=True,
max_length=255,
verbose_name=_("subscription type")
)
available_for_everyone = models.BooleanField(
default=False,
verbose_name=_("is available for every user")
)
unique_together = ('name', 'type_user')
class Meta:
permissions = (
('view_article', _("Can view an article object")),
('buy_every_article', _("Can buy every article"))
)
verbose_name = "article"
verbose_name_plural = "articles"
def clean(self):
if self.name.lower() == 'solde':
raise ValidationError(
_("Balance is a reserved article name.")
)
if self.type_cotisation and not self.duration:
raise ValidationError(
_("Duration must be specified for a subscription.")
)
def __str__(self):
return self.name
def can_buy_article(self, user, *_args, **_kwargs):
"""Check if a user can buy this article.
Args:
self: The article
user: The user requesting buying
Returns:
A boolean stating if usage is granted and an explanation
message if the boolean is `False`.
"""
can = self.available_for_everyone \
or user.has_perm('cotisations.buy_every_article') \
or user.has_perm('cotisations.add_facture')
return (
can,
_("You can't buy this article.") if not can else None,
('cotisations.buy_every_article', 'cotisations.add_facture')
)
@classmethod
def find_allowed_articles(cls, user, target_user):
"""Finds every allowed articles for an user, on a target user.
Args:
user: The user requesting articles.
target_user: The user to sell articles
"""
if target_user is None:
objects_pool = cls.objects.filter(Q(type_user='All'))
elif target_user.is_class_club:
objects_pool = cls.objects.filter(
Q(type_user='All') | Q(type_user='Club')
)
else:
objects_pool = cls.objects.filter(
Q(type_user='All') | Q(type_user='Adherent')
)
if target_user is not None and not target_user.is_adherent():
objects_pool = objects_pool.filter(
Q(type_cotisation='All') | Q(type_cotisation='Adhesion')
)
if user.has_perm('cotisations.buy_every_article'):
return objects_pool
return objects_pool.filter(available_for_everyone=True)
class Banque(RevMixin, AclMixin, models.Model):
"""
The model defining a bank. It represents a user's bank. It's mainly used
for statistics by regrouping the user under their bank's name and avoid
the use of a simple name which leads (by experience) to duplicates that
only differs by a capital letter, a space, a misspelling, ... That's why
it's easier to use simple object for the banks.
"""
name = models.CharField(
max_length=255,
)
class Meta:
permissions = (
('view_banque', _("Can view a bank object")),
)
verbose_name = _("bank")
verbose_name_plural = _("banks")
def __str__(self):
return self.name
# TODO : change Paiement to Payment
class Paiement(RevMixin, AclMixin, models.Model):
"""
The model defining a payment method. It is how the user is paying for the
invoice. It's easier to know this information when doing the accouts.
It is represented by:
* a name
"""
# TODO : change moyen to method
moyen = models.CharField(
max_length=255,
verbose_name=_("method")
)
available_for_everyone = models.BooleanField(
default=False,
verbose_name=_("is available for every user")
)
is_balance = models.BooleanField(
default=False,
editable=False,
verbose_name=_("is user balance"),
help_text=_("There should be only one balance payment method."),
validators=[check_no_balance]
)
class Meta:
permissions = (
('view_paiement', _("Can view a payment method object")),
('use_every_payment', _("Can use every payment method")),
)
verbose_name = _("payment method")
verbose_name_plural = _("payment methods")
def __str__(self):
return self.moyen
def clean(self):
"""l
Override of the herited clean function to get a correct name
"""
self.moyen = self.moyen.title()
def end_payment(self, invoice, request, use_payment_method=True):
"""
The general way of ending a payment.
Args:
invoice: The invoice being created.
request: Request sent by the user.
use_payment_method: If this flag is set to True and`self` has
an attribute `payment_method`, returns the result of
`self.payment_method.end_payment(invoice, request)`
Returns:
An `HttpResponse`-like object.
"""
payment_method = find_payment_method(self)
if payment_method is not None and use_payment_method:
return payment_method.end_payment(invoice, request)
# So make this invoice valid, trigger send mail
invoice.valid = True
invoice.save()
# In case a cotisation was bought, inform the user, the
# cotisation time has been extended too
if any(sell.type_cotisation for sell in invoice.vente_set.all()):
messages.success(
request,
_("The subscription of %(member_name)s was extended to"
" %(end_date)s.") % {
'member_name': invoice.user.pseudo,
'end_date': invoice.user.end_adhesion()
}
)
# Else, only tell the invoice was created
else:
messages.success(
request,
_("The invoice was created.")
)
return redirect(reverse(
'users:profil',
kwargs={'userid': invoice.user.pk}
))
def can_use_payment(self, user, *_args, **_kwargs):
"""Check if a user can use this payment.
Args:
self: The payment
user: The user requesting usage
Returns:
A boolean stating if usage is granted and an explanation
message if the boolean is `False`.
"""
can = self.available_for_everyone \
or user.has_perm('cotisations.use_every_payment') \
or user.has_perm('cotisations.add_facture')
return (
can,
_("You can't use this payment method.") if not can else None,
('cotisations.use_every_payment', 'cotisations.add_facture')
)
@classmethod
def find_allowed_payments(cls, user):
"""Finds every allowed payments for an user.
Args:
user: The user requesting payment methods.
"""
if user.has_perm('cotisations.use_every_payment'):
return cls.objects.all()
return cls.objects.filter(available_for_everyone=True)
def get_payment_method_name(self):
p = find_payment_method(self)
if p is not None:
return p._meta.verbose_name
return _("No custom payment method.")
class Cotisation(RevMixin, AclMixin, models.Model):
"""
The model defining a cotisation. It holds information about the time a user
is allowed when he has paid something.
It characterised by :
* a date_start (the date when the cotisaiton begins/began
* a date_end (the date when the cotisation ends/ended
* a type of cotisation (which indicates the implication of such
cotisation)
* a purchase (the related objects this cotisation is linked to)
"""
COTISATION_TYPE = (
('Connexion', _("Connection")),
('Adhesion', _("Membership")),
('All', _("Both of them")),
)
# TODO : change vente to purchase
vente = models.OneToOneField(
'Vente',
on_delete=models.CASCADE,
null=True,
verbose_name=_("purchase")
)
type_cotisation = models.CharField(
choices=COTISATION_TYPE,
max_length=255,
default='All',
verbose_name=_("subscription type")
)
date_start = models.DateTimeField(
verbose_name=_("start date")
)
date_end = models.DateTimeField(
verbose_name=_("end date")
)
class Meta:
permissions = (
('view_cotisation', _("Can view a subscription object")),
('change_all_cotisation', _("Can edit the previous subscriptions")),
)
verbose_name = _("subscription")
verbose_name_plural = _("subscriptions")
def can_edit(self, user_request, *_args, **_kwargs):
if not user_request.has_perm('cotisations.change_cotisation'):
return (
False,
_("You don't have the right to edit a subscription."),
('cotisations.change_cotisation',)
)
elif not user_request.has_perm('cotisations.change_all_cotisation') \
and (self.vente.facture.control or
not self.vente.facture.valid):
return (
False,
_("You don't have the right to edit a subscription "
"already controlled or invalidated."),
('cotisations.change_all_cotisation',)
)
else:
return True, None, None
def can_delete(self, user_request, *_args, **_kwargs):
if not user_request.has_perm('cotisations.delete_cotisation'):
return (
False,
_("You don't have the right to delete a subscription."),
('cotisations.delete_cotisation',)
)
if self.vente.facture.control or not self.vente.facture.valid:
return (
False,
_("You don't have the right to delete a subscription "
"already controlled or invalidated."),
None
)
else:
return True, None, None
def can_view(self, user_request, *_args, **_kwargs):
if not user_request.has_perm('cotisations.view_cotisation') and\
self.vente.facture.user != user_request:
return (
False,
_("You don't have the right to view someone else's "
"subscription history."),
('cotisations.view_cotisation',)
)
else:
return True, None, None
def __str__(self):
return str(self.vente)
@receiver(post_save, sender=Cotisation)
def cotisation_post_save(**_kwargs):
"""
Mark some services as needing a regeneration after the edition of a
cotisation. Indeed the membership status may have changed.
"""
regen('dns')
regen('dhcp')
regen('mac_ip_list')
regen('mailing')
@receiver(post_delete, sender=Cotisation)
def cotisation_post_delete(**_kwargs):
"""
Mark some services as needing a regeneration after the deletion of a
cotisation. Indeed the membership status may have changed.
"""
regen('mac_ip_list')
regen('mailing')
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