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https://gitlab2.federez.net/re2o/re2o
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704 lines
25 KiB
Python
704 lines
25 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
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# se veut agnostique au réseau considéré, de manière à être installable en
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# quelques clics.
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#
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# Copyright © 2017 Gabriel Détraz
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# Copyright © 2017 Goulven Kermarec
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# Copyright © 2017 Augustin Lemesle
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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The database models for the 'cotisation' app of re2o.
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The goal is to keep the main actions here, i.e. the 'clean' and 'save'
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function are higly reposnsible for the changes, checking the coherence of the
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data and the good behaviour in general for not breaking the database.
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For further details on each of those models, see the documentation details for
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each.
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"""
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from __future__ import unicode_literals
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from dateutil.relativedelta import relativedelta
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from django.db import models
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from django.db.models import Q, Max
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from django.db.models.signals import post_save, post_delete
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from django.dispatch import receiver
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from django.forms import ValidationError
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from django.core.validators import MinValueValidator
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from django.utils import timezone
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from django.utils.translation import ugettext as _
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from django.utils.translation import ugettext_lazy as _l
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from machines.models import regen
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from re2o.field_permissions import FieldPermissionModelMixin
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from re2o.mixins import AclMixin, RevMixin
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# TODO : change facture to invoice
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class Facture(RevMixin, AclMixin, FieldPermissionModelMixin, models.Model):
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"""
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The model for an invoice. It reprensents the fact that a user paid for
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something (it can be multiple article paid at once).
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An invoice is linked to :
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* one or more purchases (one for each article sold that time)
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* a user (the one who bought those articles)
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* a payment method (the one used by the user)
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* (if applicable) a bank
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* (if applicable) a cheque number.
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Every invoice is dated throught the 'date' value.
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An invoice has a 'controlled' value (default : False) which means that
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someone with high enough rights has controlled that invoice and taken it
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into account. It also has a 'valid' value (default : True) which means
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that someone with high enough rights has decided that this invoice was not
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valid (thus it's like the user never paid for his articles). It may be
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necessary in case of non-payment.
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"""
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user = models.ForeignKey('users.User', on_delete=models.PROTECT)
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# TODO : change paiement to payment
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paiement = models.ForeignKey('Paiement', on_delete=models.PROTECT)
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# TODO : change banque to bank
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banque = models.ForeignKey(
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'Banque',
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on_delete=models.PROTECT,
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blank=True,
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null=True
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)
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# TODO : maybe change to cheque nummber because not evident
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cheque = models.CharField(
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max_length=255,
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blank=True,
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verbose_name=_l("Cheque number")
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)
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date = models.DateTimeField(
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auto_now_add=True,
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verbose_name=_l("Date")
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)
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# TODO : change name to validity for clarity
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valid = models.BooleanField(
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default=True,
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verbose_name=_l("Validated")
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)
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# TODO : changed name to controlled for clarity
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control = models.BooleanField(
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default=False,
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verbose_name=_l("Controlled")
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)
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class Meta:
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abstract = False
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permissions = (
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# TODO : change facture to invoice
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('change_facture_control',
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_l("Can change the \"controlled\" state")),
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# TODO : seems more likely to be call create_facture_pdf
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# or create_invoice_pdf
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('change_facture_pdf',
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_l("Can create a custom PDF invoice")),
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('view_facture',
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_l("Can see an invoice's details")),
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('change_all_facture',
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_l("Can edit all the previous invoices")),
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)
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verbose_name = _l("Invoice")
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verbose_name_plural = _l("Invoices")
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def linked_objects(self):
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"""Return linked objects : machine and domain.
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Usefull in history display"""
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return self.vente_set.all()
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# TODO : change prix to price
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def prix(self):
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"""
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Returns: the raw price without the quantities.
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Deprecated, use :total_price instead.
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"""
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price = Vente.objects.filter(
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facture=self
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).aggregate(models.Sum('prix'))['prix__sum']
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return price
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# TODO : change prix to price
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def prix_total(self):
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"""
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Returns: the total price for an invoice. Sum all the articles' prices
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and take the quantities into account.
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"""
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# TODO : change Vente to somethingelse
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return Vente.objects.filter(
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facture=self
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).aggregate(
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total=models.Sum(
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models.F('prix')*models.F('number'),
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output_field=models.FloatField()
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)
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)['total']
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def name(self):
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"""
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Returns : a string with the name of all the articles in the invoice.
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Used for reprensenting the invoice with a string.
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"""
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name = ' - '.join(Vente.objects.filter(
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facture=self
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).values_list('name', flat=True))
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return name
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def can_edit(self, user_request, *args, **kwargs):
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if not user_request.has_perm('cotisations.change_facture'):
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return False, _("You don't have the right to edit an invoice.")
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elif not user_request.has_perm('cotisations.change_all_facture') and \
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not self.user.can_edit(user_request, *args, **kwargs)[0]:
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return False, _("You don't have the right to edit this user's "
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"invoices.")
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elif not user_request.has_perm('cotisations.change_all_facture') and \
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(self.control or not self.valid):
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return False, _("You don't have the right to edit an invoice "
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"already controlled or invalidated.")
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else:
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return True, None
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def can_delete(self, user_request, *args, **kwargs):
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if not user_request.has_perm('cotisations.delete_facture'):
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return False, _("You don't have the right to delete an invoice.")
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if not self.user.can_edit(user_request, *args, **kwargs)[0]:
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return False, _("You don't have the right to delete this user's "
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"invoices.")
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if self.control or not self.valid:
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return False, _("You don't have the right to delete an invoice "
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"already controlled or invalidated.")
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else:
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return True, None
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def can_view(self, user_request, *_args, **_kwargs):
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if not user_request.has_perm('cotisations.view_facture') and \
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self.user != user_request:
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return False, _("You don't have the right to see someone else's "
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"invoices history.")
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elif not self.valid:
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return False, _("The invoice has been invalidated.")
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else:
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return True, None
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@staticmethod
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def can_change_control(user_request, *_args, **_kwargs):
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""" Returns True if the user can change the 'controlled' status of
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this invoice """
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return (
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user_request.has_perm('cotisations.change_facture_control'),
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_("You don't have the right to edit the \"controlled\" state.")
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)
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@staticmethod
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def can_change_pdf(user_request, *_args, **_kwargs):
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""" Returns True if the user can change this invoice """
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return (
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user_request.has_perm('cotisations.change_facture_pdf'),
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_("You don't have the right to edit an invoice.")
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)
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def __init__(self, *args, **kwargs):
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super(Facture, self).__init__(*args, **kwargs)
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self.field_permissions = {
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'control': self.can_change_control,
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}
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def __str__(self):
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return str(self.user) + ' ' + str(self.date)
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@receiver(post_save, sender=Facture)
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def facture_post_save(**kwargs):
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"""
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Synchronise the LDAP user after an invoice has been saved.
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"""
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facture = kwargs['instance']
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user = facture.user
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user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
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@receiver(post_delete, sender=Facture)
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def facture_post_delete(**kwargs):
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"""
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Synchronise the LDAP user after an invoice has been deleted.
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"""
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user = kwargs['instance'].user
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user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
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# TODO : change Vente to Purchase
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class Vente(RevMixin, AclMixin, models.Model):
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"""
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The model defining a purchase. It consist of one type of article being
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sold. In particular there may be multiple purchases in a single invoice.
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It's reprensentated by:
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* an amount (the number of items sold)
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* an invoice (whose the purchase is part of)
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* an article
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* (if applicable) a cotisation (which holds some informations about
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the effect of the purchase on the time agreed for this user)
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"""
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# TODO : change this to English
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COTISATION_TYPE = (
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('Connexion', _l("Connexion")),
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('Adhesion', _l("Membership")),
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('All', _l("Both of them")),
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)
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# TODO : change facture to invoice
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facture = models.ForeignKey(
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'Facture',
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on_delete=models.CASCADE,
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verbose_name=_l("Invoice")
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)
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# TODO : change number to amount for clarity
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number = models.IntegerField(
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validators=[MinValueValidator(1)],
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verbose_name=_l("Amount")
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)
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# TODO : change this field for a ForeinKey to Article
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name = models.CharField(
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max_length=255,
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verbose_name=_l("Article")
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)
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# TODO : change prix to price
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# TODO : this field is not needed if you use Article ForeignKey
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prix = models.DecimalField(
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max_digits=5,
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decimal_places=2,
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verbose_name=_l("Price"))
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# TODO : this field is not needed if you use Article ForeignKey
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duration = models.PositiveIntegerField(
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blank=True,
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null=True,
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verbose_name=_l("Duration (in whole month)")
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)
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# TODO : this field is not needed if you use Article ForeignKey
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type_cotisation = models.CharField(
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choices=COTISATION_TYPE,
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blank=True,
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null=True,
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max_length=255,
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verbose_name=_l("Type of cotisation")
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)
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class Meta:
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permissions = (
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('view_vente', _l("Can see a purchase's details")),
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('change_all_vente', _l("Can edit all the previous purchases")),
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)
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verbose_name = _l("Purchase")
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verbose_name_plural = _l("Purchases")
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# TODO : change prix_total to total_price
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def prix_total(self):
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"""
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Returns: the total of price for this amount of items.
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"""
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return self.prix*self.number
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def update_cotisation(self):
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"""
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Update the related object 'cotisation' if there is one. Based on the
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duration of the purchase.
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"""
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if hasattr(self, 'cotisation'):
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cotisation = self.cotisation
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cotisation.date_end = cotisation.date_start + relativedelta(
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months=self.duration*self.number)
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return
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def create_cotis(self, date_start=False):
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"""
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Update and create a 'cotisation' related object if there is a
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cotisation_type defined (which means the article sold represents
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a cotisation)
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"""
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if not hasattr(self, 'cotisation') and self.type_cotisation:
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cotisation = Cotisation(vente=self)
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cotisation.type_cotisation = self.type_cotisation
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if date_start:
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end_cotisation = Cotisation.objects.filter(
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vente__in=Vente.objects.filter(
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facture__in=Facture.objects.filter(
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user=self.facture.user
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).exclude(valid=False))
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).filter(
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Q(type_cotisation='All') |
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Q(type_cotisation=self.type_cotisation)
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).filter(
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date_start__lt=date_start
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).aggregate(Max('date_end'))['date_end__max']
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elif self.type_cotisation == "Adhesion":
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end_cotisation = self.facture.user.end_adhesion()
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else:
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end_cotisation = self.facture.user.end_connexion()
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date_start = date_start or timezone.now()
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end_cotisation = end_cotisation or date_start
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date_max = max(end_cotisation, date_start)
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cotisation.date_start = date_max
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cotisation.date_end = cotisation.date_start + relativedelta(
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months=self.duration*self.number
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)
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return
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def save(self, *args, **kwargs):
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"""
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Save a purchase object and check if all the fields are coherents
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It also update the associated cotisation in the changes have some
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effect on the user's cotisation
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"""
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# Checking that if a cotisation is specified, there is also a duration
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if self.type_cotisation and not self.duration:
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raise ValidationError(
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_("A cotisation should always have a duration.")
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)
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self.update_cotisation()
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super(Vente, self).save(*args, **kwargs)
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def can_edit(self, user_request, *args, **kwargs):
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if not user_request.has_perm('cotisations.change_vente'):
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return False, _("You don't have the right to edit the purchases.")
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elif (not user_request.has_perm('cotisations.change_all_facture') and
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not self.facture.user.can_edit(
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user_request, *args, **kwargs
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)[0]):
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return False, _("You don't have the right to edit this user's "
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"purchases.")
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elif (not user_request.has_perm('cotisations.change_all_vente') and
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(self.facture.control or not self.facture.valid)):
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return False, _("You don't have the right to edit a purchase "
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"already controlled or invalidated.")
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else:
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return True, None
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def can_delete(self, user_request, *args, **kwargs):
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if not user_request.has_perm('cotisations.delete_vente'):
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return False, _("You don't have the right to delete a purchase.")
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if not self.facture.user.can_edit(user_request, *args, **kwargs)[0]:
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return False, _("You don't have the right to delete this user's "
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"purchases.")
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if self.facture.control or not self.facture.valid:
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return False, _("You don't have the right to delete a purchase "
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"already controlled or invalidated.")
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else:
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return True, None
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def can_view(self, user_request, *_args, **_kwargs):
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if (not user_request.has_perm('cotisations.view_vente') and
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self.facture.user != user_request):
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return False, _("You don't have the right to see someone "
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"else's purchase history.")
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else:
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return True, None
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def __str__(self):
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return str(self.name) + ' ' + str(self.facture)
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# TODO : change vente to purchase
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@receiver(post_save, sender=Vente)
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def vente_post_save(**kwargs):
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"""
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Creates a 'cotisation' related object if needed and synchronise the
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LDAP user when a purchase has been saved.
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"""
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purchase = kwargs['instance']
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if hasattr(purchase, 'cotisation'):
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purchase.cotisation.vente = purchase
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purchase.cotisation.save()
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if purchase.type_cotisation:
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purchase.create_cotis()
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purchase.cotisation.save()
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user = purchase.facture.user
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user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
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# TODO : change vente to purchase
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@receiver(post_delete, sender=Vente)
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def vente_post_delete(**kwargs):
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"""
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Synchronise the LDAP user after a purchase has been deleted.
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"""
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purchase = kwargs['instance']
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if purchase.type_cotisation:
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user = purchase.facture.user
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user.ldap_sync(base=False, access_refresh=True, mac_refresh=False)
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class Article(RevMixin, AclMixin, models.Model):
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"""
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The definition of an article model. It represents a type of object
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that can be sold to the user.
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It's represented by:
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* a name
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* a price
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* a cotisation type (indicating if this article reprensents a
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cotisation or not)
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* a duration (if it is a cotisation)
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* a type of user (indicating what kind of user can buy this article)
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"""
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# TODO : Either use TYPE or TYPES in both choices but not both
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USER_TYPES = (
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('Adherent', _l("Member")),
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('Club', _l("Club")),
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('All', _l("Both of them")),
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)
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COTISATION_TYPE = (
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('Connexion', _l("Connexion")),
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('Adhesion', _l("Membership")),
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('All', _l("Both of them")),
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)
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name = models.CharField(
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max_length=255,
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verbose_name=_l("Designation")
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)
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# TODO : change prix to price
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prix = models.DecimalField(
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max_digits=5,
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decimal_places=2,
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verbose_name=_l("Unitary price")
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)
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duration = models.PositiveIntegerField(
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blank=True,
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null=True,
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validators=[MinValueValidator(0)],
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verbose_name=_l("Duration (in whole month)")
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)
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type_user = models.CharField(
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choices=USER_TYPES,
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default='All',
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max_length=255,
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verbose_name=_l("Type of users concerned")
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)
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type_cotisation = models.CharField(
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choices=COTISATION_TYPE,
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default=None,
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blank=True,
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null=True,
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max_length=255,
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verbose_name=_l("Type of cotisation")
|
|
)
|
|
|
|
unique_together = ('name', 'type_user')
|
|
|
|
class Meta:
|
|
permissions = (
|
|
('view_article', _l("Can see an article's details")),
|
|
)
|
|
verbose_name = "Article"
|
|
verbose_name_plural = "Articles"
|
|
|
|
def clean(self):
|
|
if self.name.lower() == 'solde':
|
|
raise ValidationError(
|
|
_("Solde is a reserved article name")
|
|
)
|
|
if self.type_cotisation and not self.duration:
|
|
raise ValidationError(
|
|
_("Duration must be specified for a cotisation")
|
|
)
|
|
|
|
def __str__(self):
|
|
return self.name
|
|
|
|
|
|
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,
|
|
verbose_name=_l("Name")
|
|
)
|
|
|
|
class Meta:
|
|
permissions = (
|
|
('view_banque', _l("Can see a bank's details")),
|
|
)
|
|
verbose_name = _l("Bank")
|
|
verbose_name_plural = _l("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
|
|
* a type (used for the type 'cheque' which implies the use of a bank
|
|
and an account number in related models)
|
|
"""
|
|
|
|
PAYMENT_TYPES = (
|
|
(0, _l("Standard")),
|
|
(1, _l("Cheque")),
|
|
)
|
|
|
|
# TODO : change moyen to method
|
|
moyen = models.CharField(
|
|
max_length=255,
|
|
verbose_name=_l("Method")
|
|
)
|
|
type_paiement = models.IntegerField(
|
|
choices=PAYMENT_TYPES,
|
|
default=0,
|
|
verbose_name=_l("Payment type")
|
|
)
|
|
|
|
class Meta:
|
|
permissions = (
|
|
('view_paiement', _l("Can see a payement's details")),
|
|
)
|
|
verbose_name = _l("Payment method")
|
|
verbose_name_plural = _l("Payment methods")
|
|
|
|
def __str__(self):
|
|
return self.moyen
|
|
|
|
def clean(self):
|
|
"""
|
|
Override of the herited clean function to get a correct name
|
|
"""
|
|
self.moyen = self.moyen.title()
|
|
|
|
def save(self, *args, **kwargs):
|
|
"""
|
|
Override of the herited save function to be sure only one payment
|
|
method of type 'cheque' exists.
|
|
"""
|
|
if Paiement.objects.filter(type_paiement=1).count() > 1:
|
|
raise ValidationError(
|
|
_("You cannot have multiple payment method of type cheque")
|
|
)
|
|
super(Paiement, self).save(*args, **kwargs)
|
|
|
|
|
|
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', _l("Connexion")),
|
|
('Adhesion', _l("Membership")),
|
|
('All', _l("Both of them")),
|
|
)
|
|
|
|
# TODO : change vente to purchase
|
|
vente = models.OneToOneField(
|
|
'Vente',
|
|
on_delete=models.CASCADE,
|
|
null=True,
|
|
verbose_name=_l("Purchase")
|
|
)
|
|
type_cotisation = models.CharField(
|
|
choices=COTISATION_TYPE,
|
|
max_length=255,
|
|
default='All',
|
|
verbose_name=_l("Type of cotisation")
|
|
)
|
|
date_start = models.DateTimeField(
|
|
verbose_name=_l("Starting date")
|
|
)
|
|
date_end = models.DateTimeField(
|
|
verbose_name=_l("Ending date")
|
|
)
|
|
|
|
class Meta:
|
|
permissions = (
|
|
('view_cotisation', _l("Can see a cotisation's details")),
|
|
('change_all_cotisation', _l("Can edit the previous cotisations")),
|
|
)
|
|
|
|
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 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 cotisation "
|
|
"already controlled or invalidated.")
|
|
else:
|
|
return True, 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 "
|
|
"cotisation.")
|
|
if self.vente.facture.control or not self.vente.facture.valid:
|
|
return False, _("You don't have the right to delete a cotisation "
|
|
"already controlled or invalidated.")
|
|
else:
|
|
return True, 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 see someone else's "
|
|
"cotisation history.")
|
|
else:
|
|
return True, 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')
|