kpsul/kfet/views.py

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# -*- coding: utf-8 -*-
from collections import defaultdict
from datetime import timedelta
import hashlib
import heapq
import statistics
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from django.shortcuts import render, get_object_or_404, redirect
from django.core.exceptions import PermissionDenied
from django.core.cache import cache
from django.views.generic import ListView, DetailView
from django.views.generic.edit import CreateView, UpdateView
from django.core.urlresolvers import reverse_lazy
from django.contrib import messages
from django.contrib.messages.views import SuccessMessageMixin
from django.contrib.auth import authenticate, login
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from django.contrib.auth.decorators import login_required, permission_required
from django.contrib.auth.models import User, Permission, Group
from django.http import JsonResponse, Http404
from django.forms import formset_factory
from django.db import transaction
from django.db.models import F, Sum, Prefetch, Count
from django.db.models.functions import Coalesce
Gestion des commandes K-Psul donnant un négatif * Settings - New: OVERDRAFT_AMOUNT Découvert autorisé par défaut - New: OVERDRAFT_DURATION Durée maximum d'un découvert par défaut * K-Psul : Gestion des commandes aboutissant à un négatif - Si une commande aboutit à un nouveau solde négatif, demande la permission 'kfet.perform_negative_operations' - Si le total de la commande est négatif, vérifie que ni la contrainte de temps de découvert, ni celle de montant maximum n'est outrepassée. Si ce n'est pas le cas, la commande ne peut être enregistrée jusqu'à définir des "règles de négatif" pour le compte concerné. La durée maximum d'un découvert est celle dans AccountNegative si elle y est définie pour le compte concerné, sinon celle par défaut (Settings.OVERDRAFT_DURATION). Il en est de même pour le découvert maximum autorisé. Attention: le découvert doit être exprimé sous forme de valeur positive aussi bien dans AccountNegative que pour Settings.OVERDRAFT_AMOUNT. - Si les permissions nécessaires sont présentes, qu'il n'y a pas de blocage et que le compte n'a pas encore d'entrée dans AccountNegative, création d'une entrée avec start=now() - Si la balance d'un compte est positive après une commande, supprime l'entrée dans AccountNegative associée au compte si le "décalage de zéro" (donné par balance_offset) est nul. Sinon cela veut dire que le compte n'est pas réellement en positif. * Modèles - Fix: Account.save() fonctionne dans le cas où data est vide - Modif: AccountNegative - Valeurs par défaut, NULL...
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from django.utils import timezone
from django.utils.crypto import get_random_string
from gestion.models import Profile
from kfet.decorators import teamkfet_required
from kfet.models import (
Account, Checkout, Article, Settings, AccountNegative, CheckoutStatement,
GenericTeamToken, Supplier, SupplierArticle, Inventory, InventoryArticle,
Order, OrderArticle
)
from kfet.forms import *
from kfet import consumers
import django_cas_ng
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@login_required
def home(request):
return render(request, "kfet/base.html")
@teamkfet_required
def login_genericteam(request):
# Check si besoin de déconnecter l'utilisateur de CAS
profile, _ = Profile.objects.get_or_create(user=request.user)
need_cas_logout = False
if profile.login_clipper:
need_cas_logout = True
# Récupèration de la vue de déconnexion de CAS
# Ici, car request sera modifié après
logout_cas = django_cas_ng.views.logout(request)
# Authentification du compte générique
token = GenericTeamToken.objects.create(token=get_random_string(50))
user = authenticate(username="kfet_genericteam", token=token.token)
login(request, user)
if need_cas_logout:
# Vue de déconnexion de CAS
return logout_cas
return render(request, "kfet/login_genericteam.html")
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def put_cleaned_data_in_dict(dict, form):
for field in form.cleaned_data:
dict[field] = form.cleaned_data[field]
# -----
# Account views
# -----
# Account - General
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@login_required
@teamkfet_required
def account(request):
accounts = Account.objects.select_related('profile__user').order_by('trigramme')
return render(request, "kfet/account.html", { 'accounts' : accounts })
@login_required
@teamkfet_required
def account_is_validandfree_ajax(request):
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if not request.GET.get("trigramme", ''):
raise Http404
trigramme = request.GET.get("trigramme")
data = Account.is_validandfree(trigramme)
return JsonResponse(data)
# Account - Create
@login_required
@teamkfet_required
def account_create_special(request):
# Enregistrement
if request.method == "POST":
trigramme_form = AccountTriForm(request.POST, initial={'balance':0})
balance_form = AccountBalanceForm(request.POST)
# Peuplement des forms
username = request.POST.get('username')
login_clipper = request.POST.get('login_clipper')
forms = get_account_create_forms(
request, username=username, login_clipper=login_clipper)
account_form = forms['account_form']
cof_form = forms['cof_form']
user_form = forms['user_form']
if all((user_form.is_valid(), cof_form.is_valid(),
trigramme_form.is_valid(), account_form.is_valid(),
balance_form.is_valid())):
# Checking permission
if not request.user.has_perm('kfet.special_add_account'):
messages.error(request, 'Permission refusée')
else:
data = {}
# Fill data for Account.save()
put_cleaned_data_in_dict(data, user_form)
put_cleaned_data_in_dict(data, cof_form)
try:
account = trigramme_form.save(data = data)
account_form = AccountNoTriForm(request.POST, instance=account)
account_form.save()
balance_form = AccountBalanceForm(request.POST, instance=account)
balance_form.save()
amount = balance_form.cleaned_data['balance']
checkout = Checkout.objects.get(name='Initial')
is_cof = account.is_cof
opegroup = OperationGroup.objects.create(
on_acc=account,
checkout=checkout,
amount = amount,
is_cof = account.is_cof)
ope = Operation.objects.create(
group = opegroup,
type = Operation.INITIAL,
amount = amount,
is_checkout = False)
messages.success(request, 'Compte créé : %s' % account.trigramme)
return redirect('kfet.account.create')
except Account.UserHasAccount as e:
messages.error(request, \
"Cet utilisateur a déjà un compte K-Fêt : %s" % e.trigramme)
else:
initial = { 'trigramme': request.GET.get('trigramme', '') }
trigramme_form = AccountTriForm(initial = initial)
balance_form = AccountBalanceForm(initial = {'balance': 0})
account_form = None
cof_form = None
user_form = None
return render(request, "kfet/account_create_special.html", {
'trigramme_form': trigramme_form,
'account_form': account_form,
'cof_form': cof_form,
'user_form': user_form,
'balance_form': balance_form,
})
# Account - Create
@login_required
@teamkfet_required
def account_create(request):
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# Enregistrement
if request.method == "POST":
trigramme_form = AccountTriForm(request.POST)
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# Peuplement des forms
username = request.POST.get('username')
login_clipper = request.POST.get('login_clipper')
forms = get_account_create_forms(
request, username=username, login_clipper=login_clipper)
account_form = forms['account_form']
cof_form = forms['cof_form']
user_form = forms['user_form']
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if all((user_form.is_valid(), cof_form.is_valid(),
trigramme_form.is_valid(), account_form.is_valid())):
# Checking permission
if not request.user.has_perm('kfet.add_account'):
messages.error(request, 'Permission refusée')
else:
data = {}
# Fill data for Account.save()
put_cleaned_data_in_dict(data, user_form)
put_cleaned_data_in_dict(data, cof_form)
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try:
account = trigramme_form.save(data = data)
account_form = AccountNoTriForm(request.POST, instance=account)
account_form.save()
messages.success(request, 'Compte créé : %s' % account.trigramme)
return redirect('kfet.account.create')
except Account.UserHasAccount as e:
messages.error(request, \
"Cet utilisateur a déjà un compte K-Fêt : %s" % e.trigramme)
else:
initial = { 'trigramme': request.GET.get('trigramme', '') }
trigramme_form = AccountTriForm(initial = initial)
account_form = None
cof_form = None
user_form = None
return render(request, "kfet/account_create.html", {
'trigramme_form': trigramme_form,
'account_form': account_form,
'cof_form': cof_form,
'user_form': user_form,
})
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def account_form_set_readonly_fields(user_form, cof_form):
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user_form.fields['username'].widget.attrs['readonly'] = True
cof_form.fields['login_clipper'].widget.attrs['readonly'] = True
cof_form.fields['is_cof'].widget.attrs['disabled'] = True
def get_account_create_forms(request=None, username=None, login_clipper=None,
fullname=None):
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user = None
clipper = False
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if login_clipper and (login_clipper == username or not username):
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# à partir d'un clipper
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# le user associé à ce clipper ne devrait pas encore exister
clipper = True
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try:
# Vérification que clipper ne soit pas déjà dans User
user = User.objects.get(username=login_clipper)
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# Ici, on nous a menti, le user existe déjà
username = user.username
clipper = False
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except User.DoesNotExist:
# Clipper (sans user déjà existant)
# UserForm - Prefill
user_initial = {
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'username' : login_clipper,
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'email' : "%s@clipper.ens.fr" % login_clipper}
if fullname:
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# Prefill du nom et prénom
names = fullname.split()
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# Le premier, c'est le prénom
user_initial['first_name'] = names[0]
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if len(names) > 1:
# Si d'autres noms -> tous dans le nom de famille
user_initial['last_name'] = " ".join(names[1:])
# ProfileForm - Prefill
profile_initial = { 'login_clipper': login_clipper }
# Form créations
if request:
user_form = UserForm(request.POST, initial=user_initial, from_clipper=True)
profile_form = ProfileForm(request.POST, initial=profile_initial)
else:
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user_form = UserForm(initial=user_initial, from_clipper=True)
profile_form = ProfileForm(initial=cof_initial)
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# Protection (read-only) des champs username et login_clipper
account_form_set_readonly_fields(user_form, profile_form)
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if username and not clipper:
try:
user = User.objects.get(username=username)
# le user existe déjà
# récupération du profil cof
profile, _ = Profile.objects.get_or_create(user=user)
# UserForm + ProfileForm - Création à partir des instances existantes
if request:
user_form = UserForm(request.POST, instance = user)
profile_form = ProfileForm(request.POST, instance = profile)
else:
user_form = UserForm(instance=user)
profile_form = ProfileForm(instance=profile)
# Protection (read-only) des champs username, login_clipper et is_cof
account_form_set_readonly_fields(user_form, profile_form)
except User.DoesNotExist:
# le username donnée n'existe pas -> Création depuis rien
# (éventuellement en cours avec erreurs précédemment)
pass
if not user and not clipper:
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# connaît pas du tout, faut tout remplir
if request:
user_form = UserForm(request.POST)
profile_form = ProfileForm(request.POST)
else:
user_form = UserForm()
profile_form = ProfileForm()
# mais on laisse le username en écriture
profile_form.fields['login_clipper'].widget.attrs['readonly'] = True
# cof_form.fields['is_cof'].widget.attrs['disabled'] = True
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if request:
account_form = AccountNoTriForm(request.POST)
else:
account_form = AccountNoTriForm()
return {
'account_form': account_form,
'cof_form': profile_form,
'user_form': user_form,
}
@login_required
@teamkfet_required
def account_create_ajax(request, username=None, login_clipper=None,
fullname=None):
forms = get_account_create_forms(
request=None, username=username, login_clipper=login_clipper,
fullname=fullname)
return render(request, "kfet/account_create_form.html", {
'account_form' : forms['account_form'],
'cof_form' : forms['cof_form'],
'user_form' : forms['user_form'],
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})
# Account - Read
@login_required
def account_read(request, trigramme):
try:
account = Account.objects.select_related('negative').get(trigramme=trigramme)
except Account.DoesNotExist:
raise Http404
# Checking permissions
if not request.user.has_perm('kfet.is_team') \
and request.user != account.user:
raise PermissionDenied
addcosts = (OperationGroup.objects
.filter(opes__addcost_for=account,opes__canceled_at=None)
.extra({'date':"date(at)"})
.values('date')
.annotate(sum_addcosts=Sum('opes__addcost_amount'))
.order_by('-date'))
return render(request, "kfet/account_read.html", {
'account' : account,
'addcosts': addcosts,
'settings': { 'subvention_cof': Settings.SUBVENTION_COF() },
})
# Account - Update
@login_required
def account_update(request, trigramme):
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account = get_object_or_404(Account, trigramme=trigramme)
# Checking permissions
if not request.user.has_perm('kfet.is_team') \
and request.user != account.user:
raise PermissionDenied
if request.user.has_perm('kfet.is_team'):
user_form = UserRestrictTeamForm(instance=account.user)
group_form = UserGroupForm(instance=account.user)
account_form = AccountForm(instance=account)
cof_form = CofRestrictForm(instance=account.profile)
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pwd_form = AccountPwdForm()
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if account.balance < 0 and not hasattr(account, 'negative'):
AccountNegative.objects.create(account=account, start=timezone.now())
account.refresh_from_db()
if hasattr(account, 'negative'):
negative_form = AccountNegativeForm(instance=account.negative)
else:
negative_form = None
else:
user_form = UserRestrictForm(instance=account.user)
account_form = AccountRestrictForm(instance=account)
cof_form = None
group_form = None
negative_form = None
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pwd_form = None
if request.method == "POST":
# Update attempt
success = False
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missing_perm = True
if request.user.has_perm('kfet.is_team'):
account_form = AccountForm(request.POST, instance=account)
cof_form = CofRestrictForm(request.POST, instance=account.profile)
user_form = UserRestrictTeamForm(request.POST, instance=account.user)
group_form = UserGroupForm(request.POST, instance=account.user)
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pwd_form = AccountPwdForm(request.POST)
if hasattr(account, 'negative'):
negative_form = AccountNegativeForm(request.POST, instance=account.negative)
if (request.user.has_perm('kfet.change_account')
and account_form.is_valid() and cof_form.is_valid()
and user_form.is_valid()):
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missing_perm = False
data = {}
# Fill data for Account.save()
put_cleaned_data_in_dict(data, user_form)
put_cleaned_data_in_dict(data, cof_form)
# Updating
account_form.save(data = data)
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# Checking perm to update password
if (request.user.has_perm('kfet.change_account_password')
and pwd_form.is_valid()):
pwd = pwd_form.cleaned_data['pwd1']
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pwd_sha256 = hashlib.sha256(pwd.encode('utf-8')).hexdigest()
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Account.objects.filter(pk=account.pk).update(
password = pwd_sha256)
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messages.success(request, 'Mot de passe mis à jour')
# Checking perm to manage perms
if (request.user.has_perm('kfet.manage_perms')
and group_form.is_valid()):
group_form.save()
# Checking perm to manage negative
if hasattr(account, 'negative'):
balance_offset_old = 0
if account.negative.balance_offset:
balance_offset_old = account.negative.balance_offset
if (hasattr(account, 'negative')
and request.user.has_perm('kfet.change_accountnegative')
and negative_form.is_valid()):
balance_offset_new = negative_form.cleaned_data['balance_offset']
if not balance_offset_new:
balance_offset_new = 0
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balance_offset_diff = balance_offset_new - balance_offset_old
Account.objects.filter(pk=account.pk).update(
balance = F('balance') + balance_offset_diff)
negative_form.save()
if not balance_offset_new and Account.objects.get(pk=account.pk).balance >= 0:
AccountNegative.objects.get(account=account).delete()
success = True
messages.success(request,
'Informations du compte %s mises à jour' % account.trigramme)
if request.user == account.user:
missing_perm = False
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account.refresh_from_db()
user_form = UserRestrictForm(request.POST, instance=account.user)
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account_form = AccountRestrictForm(request.POST, instance=account)
if user_form.is_valid() and account_form.is_valid():
user_form.save()
account_form.save()
success = True
messages.success(request, 'Vos informations ont été mises à jour')
if missing_perm:
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messages.error(request, 'Permission refusée')
if success:
return redirect('kfet.account.read', account.trigramme)
else:
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messages.error(request, 'Informations non mises à jour. Corrigez les erreurs')
return render(request, "kfet/account_update.html", {
'account' : account,
'account_form' : account_form,
'cof_form' : cof_form,
'user_form' : user_form,
'group_form' : group_form,
'negative_form': negative_form,
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'pwd_form' : pwd_form,
})
@permission_required('kfet.manage_perms')
def account_group(request):
groups = (Group.objects
.filter(name__icontains='K-Fêt')
.prefetch_related('permissions', 'user_set__profile__account_kfet')
)
return render(request, 'kfet/account_group.html', { 'groups': groups })
class AccountGroupCreate(SuccessMessageMixin, CreateView):
model = Group
template_name = 'kfet/account_group_form.html'
form_class = GroupForm
success_message = 'Nouveau groupe : %(name)s'
success_url = reverse_lazy('kfet.account.group')
class AccountGroupUpdate(UpdateView):
queryset = Group.objects.filter(name__icontains='K-Fêt')
template_name = 'kfet/account_group_form.html'
form_class = GroupForm
success_message = 'Groupe modifié : %(name)s'
success_url = reverse_lazy('kfet.account.group')
class AccountNegativeList(ListView):
queryset = (AccountNegative.objects
.select_related('account', 'account__profile__user')
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.exclude(account__trigramme='#13'))
template_name = 'kfet/account_negative.html'
context_object_name = 'negatives'
def get_context_data(self, **kwargs):
context = super(AccountNegativeList, self).get_context_data(**kwargs)
context['settings'] = {
'overdraft_amount': Settings.OVERDRAFT_AMOUNT(),
'overdraft_duration': Settings.OVERDRAFT_DURATION(),
}
negs_sum = (AccountNegative.objects
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.exclude(account__trigramme='#13')
.aggregate(
bal = Coalesce(Sum('account__balance'),0),
offset = Coalesce(Sum('balance_offset'),0),
)
)
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context['negatives_sum'] = negs_sum['bal'] - negs_sum['offset']
return context
# -----
# Checkout views
# -----
# Checkout - General
class CheckoutList(ListView):
model = Checkout
template_name = 'kfet/checkout.html'
context_object_name = 'checkouts'
# Checkout - Create
class CheckoutCreate(SuccessMessageMixin, CreateView):
model = Checkout
template_name = 'kfet/checkout_create.html'
form_class = CheckoutForm
success_message = 'Nouvelle caisse : %(name)s'
# Surcharge de la validation
def form_valid(self, form):
# Checking permission
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if not self.request.user.has_perm('kfet.add_checkout'):
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form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Creating
form.instance.created_by = self.request.user.profile.account_kfet
checkout = form.save()
# Création d'un relevé avec balance initiale
CheckoutStatement.objects.create(
checkout = checkout,
by = self.request.user.profile.account_kfet,
balance_old = checkout.balance,
balance_new = checkout.balance,
amount_taken = 0)
return super(CheckoutCreate, self).form_valid(form)
# Checkout - Read
class CheckoutRead(DetailView):
model = Checkout
template_name = 'kfet/checkout_read.html'
context_object_name = 'checkout'
def get_context_data(self, **kwargs):
context = super(CheckoutRead, self).get_context_data(**kwargs)
context['statements'] = context['checkout'].statements.order_by('-at')
return context
# Checkout - Update
class CheckoutUpdate(SuccessMessageMixin, UpdateView):
model = Checkout
template_name = 'kfet/checkout_update.html'
form_class = CheckoutRestrictForm
success_message = 'Informations mises à jour pour la caisse : %(name)s'
# Surcharge de la validation
def form_valid(self, form):
# Checking permission
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if not self.request.user.has_perm('kfet.change_checkout'):
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form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Updating
return super(CheckoutUpdate, self).form_valid(form)
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# -----
# Checkout Statement views
# -----
# Checkout Statement - General
class CheckoutStatementList(ListView):
model = CheckoutStatement
queryset = CheckoutStatement.objects.order_by('-at')
template_name = 'kfet/checkoutstatement.html'
context_object_name= 'checkoutstatements'
# Checkout Statement - Create
def getAmountTaken(data):
return Decimal(data.taken_001 * 0.01 + data.taken_002 * 0.02
+ data.taken_005 * 0.05 + data.taken_01 * 0.1
+ data.taken_02 * 0.2 + data.taken_05 * 0.5
+ data.taken_1 * 1 + data.taken_2 * 2
+ data.taken_5 * 5 + data.taken_10 * 10
+ data.taken_20 * 20 + data.taken_50 * 50
+ data.taken_100 * 100 + data.taken_200 * 200
+ data.taken_500 * 500 + float(data.taken_cheque))
def getAmountBalance(data):
return Decimal(data['balance_001'] * 0.01 + data['balance_002'] * 0.02
+ data['balance_005'] * 0.05 + data['balance_01'] * 0.1
+ data['balance_02'] * 0.2 + data['balance_05'] * 0.5
+ data['balance_1'] * 1 + data['balance_2'] * 2
+ data['balance_5'] * 5 + data['balance_10'] * 10
+ data['balance_20'] * 20 + data['balance_50'] * 50
+ data['balance_100'] * 100 + data['balance_200'] * 200
+ data['balance_500'] * 500)
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class CheckoutStatementCreate(SuccessMessageMixin, CreateView):
model = CheckoutStatement
template_name = 'kfet/checkoutstatement_create.html'
form_class = CheckoutStatementCreateForm
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success_message = 'Nouveau relevé : %(checkout)s - %(at)s'
def get_success_url(self):
return reverse_lazy('kfet.checkout.read', kwargs={'pk':self.kwargs['pk_checkout']})
def get_success_message(self, cleaned_data):
return self.success_message % dict(
cleaned_data,
checkout = self.object.checkout.name,
at = self.object.at)
def get_context_data(self, **kwargs):
context = super(CheckoutStatementCreate, self).get_context_data(**kwargs)
checkout = Checkout.objects.get(pk=self.kwargs['pk_checkout'])
context['checkout'] = checkout
return context
def form_valid(self, form):
# Checking permission
if not self.request.user.has_perm('kfet.add_checkoutstatement'):
form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
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# Creating
form.instance.amount_taken = getAmountTaken(form.instance)
if not form.instance.not_count:
form.instance.balance_new = getAmountBalance(form.cleaned_data)
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form.instance.checkout_id = self.kwargs['pk_checkout']
form.instance.by = self.request.user.profile.account_kfet
return super(CheckoutStatementCreate, self).form_valid(form)
class CheckoutStatementUpdate(SuccessMessageMixin, UpdateView):
model = CheckoutStatement
template_name = 'kfet/checkoutstatement_update.html'
form_class = CheckoutStatementUpdateForm
success_message = 'Relevé modifié'
def get_success_url(self):
return reverse_lazy('kfet.checkout.read', kwargs={'pk':self.kwargs['pk_checkout']})
def get_context_data(self, **kwargs):
context = super(CheckoutStatementUpdate, self).get_context_data(**kwargs)
checkout = Checkout.objects.get(pk=self.kwargs['pk_checkout'])
context['checkout'] = checkout
return context
def form_valid(self, form):
# Checking permission
if not self.request.user.has_perm('kfet.change_checkoutstatement'):
form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Updating
form.instance.amount_taken = getAmountTaken(form.instance)
return super(CheckoutStatementUpdate, self).form_valid(form)
# -----
# Article views
# -----
# Article - General
class ArticleList(ListView):
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queryset = (Article.objects
.select_related('category')
.prefetch_related(Prefetch('inventories',
queryset = Inventory.objects.order_by('-at'),
to_attr = 'inventory'))
.order_by('category', '-is_sold', 'name'))
template_name = 'kfet/article.html'
context_object_name = 'articles'
# Article - Create
class ArticleCreate(SuccessMessageMixin, CreateView):
model = Article
template_name = 'kfet/article_create.html'
form_class = ArticleForm
success_message = 'Nouvel item : %(category)s - %(name)s'
# Surcharge de la validation
def form_valid(self, form):
# Checking permission
if not self.request.user.has_perm('kfet.add_article'):
form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Save ici pour save le manytomany suppliers
article = form.save()
# Save des suppliers déjà existant
for supplier in form.cleaned_data['suppliers']:
SupplierArticle.objects.create(
article = article, supplier = supplier)
# Nouveau supplier
supplier_new = form.cleaned_data['supplier_new'].strip()
if supplier_new:
supplier, created = Supplier.objects.get_or_create(
name=supplier_new)
if created:
SupplierArticle.objects.create(
article = article, supplier = supplier)
# Inventaire avec stock initial
inventory = Inventory()
inventory.by = self.request.user.profile.account_kfet
inventory.save()
InventoryArticle.objects.create(
inventory = inventory,
article = article,
stock_old = article.stock,
stock_new = article.stock,
)
# Creating
return super(ArticleCreate, self).form_valid(form)
# Article - Read
class ArticleRead(DetailView):
model = Article
template_name = 'kfet/article_read.html'
context_object_name = 'article'
def get_context_data(self, **kwargs):
context = super(ArticleRead, self).get_context_data(**kwargs)
inventoryarts = (InventoryArticle.objects
.filter(article = self.object)
.select_related('inventory')
.order_by('-inventory__at'))
context['inventoryarts'] = inventoryarts
supplierarts = (SupplierArticle.objects
.filter(article = self.object)
.select_related('supplier')
.order_by('-at'))
context['supplierarts'] = supplierarts
return context
# Article - Update
class ArticleUpdate(SuccessMessageMixin, UpdateView):
model = Article
template_name = 'kfet/article_update.html'
form_class = ArticleRestrictForm
success_message = "Informations mises à jour pour l'article : %(name)s"
# Surcharge de la validation
def form_valid(self, form):
# Checking permission
if not self.request.user.has_perm('kfet.change_article'):
form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Save ici pour save le manytomany suppliers
article = form.save()
# Save des suppliers déjà existant
for supplier in form.cleaned_data['suppliers']:
if supplier not in article.suppliers.all():
SupplierArticle.objects.create(
article = article, supplier = supplier)
# On vire les suppliers désélectionnés
for supplier in article.suppliers.all():
if supplier not in form.cleaned_data['suppliers']:
SupplierArticle.objects.filter(
article = article, supplier = supplier).delete()
# Nouveau supplier
supplier_new = form.cleaned_data['supplier_new'].strip()
if supplier_new:
supplier, created = Supplier.objects.get_or_create(
name=supplier_new)
if created:
SupplierArticle.objects.create(
article = article, supplier = supplier)
# Updating
return super(ArticleUpdate, self).form_valid(form)
# -----
# K-Psul
# -----
@teamkfet_required
def kpsul(request):
data = {}
data['operationgroup_form'] = KPsulOperationGroupForm()
data['trigramme_form'] = KPsulAccountForm()
initial = {}
try:
checkout = Checkout.objects.filter(
is_protected=False, valid_from__lte=timezone.now(),
valid_to__gte=timezone.now()).get()
initial['checkout'] = checkout
except (Checkout.DoesNotExist, Checkout.MultipleObjectsReturned):
pass
data['checkout_form'] = KPsulCheckoutForm(initial=initial)
operation_formset = KPsulOperationFormSet(queryset=Operation.objects.none())
data['operation_formset'] = operation_formset
return render(request, 'kfet/kpsul.html', data)
@teamkfet_required
def kpsul_get_settings(request):
addcost_for = Settings.ADDCOST_FOR()
data = {
'subvention_cof': Settings.SUBVENTION_COF(),
'addcost_for' : addcost_for and addcost_for.trigramme or '',
'addcost_amount': Settings.ADDCOST_AMOUNT(),
}
return JsonResponse(data)
@teamkfet_required
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def account_read_json(request):
trigramme = request.POST.get('trigramme', '')
account = get_object_or_404(Account, trigramme=trigramme)
data = { 'id': account.pk, 'name': account.name, 'email': account.email,
'is_cof': account.is_cof, 'promo': account.promo,
'balance': account.balance, 'is_frozen': account.is_frozen,
'departement': account.departement, 'nickname': account.nickname,
'trigramme': account.trigramme }
return JsonResponse(data)
@teamkfet_required
def kpsul_checkout_data(request):
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pk = request.POST.get('pk', 0)
if not pk:
pk = 0
data = (Checkout.objects
.annotate(
last_statement_by_first_name=F('statements__by__profile__user__first_name'),
last_statement_by_last_name=F('statements__by__profile__user__last_name'),
last_statement_by_trigramme=F('statements__by__trigramme'),
last_statement_balance=F('statements__balance_new'),
last_statement_at=F('statements__at'))
.values(
'id', 'name', 'balance', 'valid_from', 'valid_to',
'last_statement_balance', 'last_statement_at',
'last_statement_by_trigramme', 'last_statement_by_last_name',
'last_statement_by_first_name')
.select_related(
'statements'
'statements__by',
'statements__by__profile__user')
.filter(pk=pk)
.order_by('statements__at')
.last())
if data is None:
raise Http404
return JsonResponse(data)
@teamkfet_required
def kpsul_update_addcost(request):
addcost_form = AddcostForm(request.POST)
if not addcost_form.is_valid():
data = { 'errors': { 'addcost': list(addcost_form.errors) } }
return JsonResponse(data, status=400)
required_perms = ['kfet.manage_addcosts']
if not request.user.has_perms(required_perms):
data = {
'errors': {
'missing_perms': get_missing_perms(required_perms, request.user)
}
}
return JsonResponse(data, status=403)
trigramme = addcost_form.cleaned_data['trigramme']
account = trigramme and Account.objects.get(trigramme=trigramme) or None
Settings.objects.filter(name='ADDCOST_FOR').update(value_account=account)
Settings.objects.filter(name='ADDCOST_AMOUNT').update(value_decimal=addcost_form.cleaned_data['amount'])
cache.delete('ADDCOST_FOR')
cache.delete('ADDCOST_AMOUNT')
data = {
'addcost': {
'for': trigramme and account.trigramme or None,
'amount': addcost_form.cleaned_data['amount'],
}
}
consumers.KPsul.group_send('kfet.kpsul', data)
return JsonResponse(data)
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def get_missing_perms(required_perms, user):
missing_perms_codenames = [ (perm.split('.'))[1]
for perm in required_perms if not user.has_perm(perm)]
missing_perms = list(
Permission.objects
.filter(codename__in=missing_perms_codenames)
.values_list('name', flat=True))
return missing_perms
@teamkfet_required
def kpsul_perform_operations(request):
# Initializing response data
data = { 'operationgroup': 0, 'operations': [],
'warnings': {}, 'errors': {} }
# Checking operationgroup
operationgroup_form = KPsulOperationGroupForm(request.POST)
if not operationgroup_form.is_valid():
data['errors']['operation_group'] = list(operationgroup_form.errors)
# Checking operation_formset
operation_formset = KPsulOperationFormSet(request.POST)
if not operation_formset.is_valid():
data['errors']['operations'] = list(operation_formset.errors)
# Returning BAD REQUEST if errors
if data['errors']:
return JsonResponse(data, status=400)
# Pre-saving (no commit)
operationgroup = operationgroup_form.save(commit = False)
operations = operation_formset.save(commit = False)
# Retrieving COF grant
cof_grant = Settings.SUBVENTION_COF()
# Retrieving addcosts data
addcost_amount = Settings.ADDCOST_AMOUNT()
addcost_for = Settings.ADDCOST_FOR()
# Initializing vars
required_perms = set() # Required perms to perform all operations
cof_grant_divisor = 1 + cof_grant / 100
to_addcost_for_balance = 0 # For balance of addcost_for
to_checkout_balance = 0 # For balance of selected checkout
to_articles_stocks = defaultdict(lambda:0) # For stocks articles
is_addcost = (addcost_for and addcost_amount
and addcost_for != operationgroup.on_acc)
need_comment = operationgroup.on_acc.need_comment
# Filling data of each operations + operationgroup + calculating other stuffs
for operation in operations:
if operation.type == Operation.PURCHASE:
operation.amount = - operation.article.price * operation.article_nb
if is_addcost:
operation.addcost_for = addcost_for
operation.addcost_amount = addcost_amount * operation.article_nb
operation.amount -= operation.addcost_amount
to_addcost_for_balance += operation.addcost_amount
if operationgroup.on_acc.is_cash:
operation.is_checkout = True
to_checkout_balance += -operation.amount
else:
operation.is_checkout = False
if operationgroup.on_acc.is_cof:
if is_addcost:
operation.addcost_amount = operation.addcost_amount / cof_grant_divisor
operation.amount = operation.amount / cof_grant_divisor
to_articles_stocks[operation.article] -= operation.article_nb
else:
if operationgroup.on_acc.is_cash:
data['errors']['account'] = 'Charge et retrait impossible sur LIQ'
to_checkout_balance += operation.amount
operationgroup.amount += operation.amount
if operation.type == Operation.DEPOSIT:
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required_perms.add('kfet.perform_deposit')
if (not operation.is_checkout
and operation.type in [Operation.DEPOSIT, Operation.WITHDRAW]):
required_perms.add('kfet.edit_balance_account')
need_comment = True
if operationgroup.on_acc.is_cof:
to_addcost_for_balance = to_addcost_for_balance / cof_grant_divisor
(perms, stop) = operationgroup.on_acc.perms_to_perform_operation(
amount = operationgroup.amount)
required_perms |= perms
if need_comment:
operationgroup.comment = operationgroup.comment.strip()
if not operationgroup.comment:
data['errors']['need_comment'] = True
return JsonResponse(data, status=400)
if stop or not request.user.has_perms(required_perms):
missing_perms = get_missing_perms(required_perms, request.user)
if missing_perms:
data['errors']['missing_perms'] = missing_perms
if stop:
data['errors']['negative'] = [operationgroup.on_acc.trigramme]
return JsonResponse(data, status=403)
# If 1 perm is required, filling who perform the operations
if required_perms:
operationgroup.valid_by = request.user.profile.account_kfet
# Filling cof status for statistics
operationgroup.is_cof = operationgroup.on_acc.is_cof
# Starting transaction to ensure data consistency
with transaction.atomic():
# If not cash account,
# saving account's balance and adding to Negative if not in
if not operationgroup.on_acc.is_cash:
Account.objects.filter(pk=operationgroup.on_acc.pk).update(
balance = F('balance') + operationgroup.amount)
operationgroup.on_acc.refresh_from_db()
if operationgroup.on_acc.balance < 0:
if hasattr(operationgroup.on_acc, 'negative'):
if not operationgroup.on_acc.negative.start:
operationgroup.on_acc.negative.start = timezone.now()
operationgroup.on_acc.negative.save()
else:
negative = AccountNegative(
account = operationgroup.on_acc, start = timezone.now())
negative.save()
elif (hasattr(operationgroup.on_acc, 'negative')
and not operationgroup.on_acc.negative.balance_offset):
operationgroup.on_acc.negative.delete()
# Updating checkout's balance
if to_checkout_balance:
Checkout.objects.filter(pk=operationgroup.checkout.pk).update(
balance = F('balance') + to_checkout_balance)
Gestion des commandes K-Psul donnant un négatif * Settings - New: OVERDRAFT_AMOUNT Découvert autorisé par défaut - New: OVERDRAFT_DURATION Durée maximum d'un découvert par défaut * K-Psul : Gestion des commandes aboutissant à un négatif - Si une commande aboutit à un nouveau solde négatif, demande la permission 'kfet.perform_negative_operations' - Si le total de la commande est négatif, vérifie que ni la contrainte de temps de découvert, ni celle de montant maximum n'est outrepassée. Si ce n'est pas le cas, la commande ne peut être enregistrée jusqu'à définir des "règles de négatif" pour le compte concerné. La durée maximum d'un découvert est celle dans AccountNegative si elle y est définie pour le compte concerné, sinon celle par défaut (Settings.OVERDRAFT_DURATION). Il en est de même pour le découvert maximum autorisé. Attention: le découvert doit être exprimé sous forme de valeur positive aussi bien dans AccountNegative que pour Settings.OVERDRAFT_AMOUNT. - Si les permissions nécessaires sont présentes, qu'il n'y a pas de blocage et que le compte n'a pas encore d'entrée dans AccountNegative, création d'une entrée avec start=now() - Si la balance d'un compte est positive après une commande, supprime l'entrée dans AccountNegative associée au compte si le "décalage de zéro" (donné par balance_offset) est nul. Sinon cela veut dire que le compte n'est pas réellement en positif. * Modèles - Fix: Account.save() fonctionne dans le cas où data est vide - Modif: AccountNegative - Valeurs par défaut, NULL...
2016-08-08 07:44:05 +02:00
# Saving addcost_for with new balance if there is one
if is_addcost and to_addcost_for_balance:
Account.objects.filter(pk=addcost_for.pk).update(
balance = F('balance') + to_addcost_for_balance)
# Saving operation group
operationgroup.save()
data['operationgroup'] = operationgroup.pk
# Filling operationgroup id for each operations and saving
for operation in operations:
operation.group = operationgroup
operation.save()
data['operations'].append(operation.pk)
# Updating articles stock
for article in to_articles_stocks:
Article.objects.filter(pk=article.pk).update(
stock = F('stock') + to_articles_stocks[article])
# Websocket data
websocket_data = {}
websocket_data['opegroups'] = [{
'add': True,
'id': operationgroup.pk,
'amount': operationgroup.amount,
'checkout__name': operationgroup.checkout.name,
'at': operationgroup.at,
'is_cof': operationgroup.is_cof,
'comment': operationgroup.comment,
'valid_by__trigramme': ( operationgroup.valid_by and
operationgroup.valid_by.trigramme or None),
'on_acc__trigramme': operationgroup.on_acc.trigramme,
'opes': [],
}]
for operation in operations:
ope_data = {
'id': operation.pk, 'type': operation.type, 'amount': operation.amount,
'addcost_amount': operation.addcost_amount,
'addcost_for__trigramme': is_addcost and addcost_for.trigramme or None,
'is_checkout': operation.is_checkout,
'article__name': operation.article and operation.article.name or None,
'article_nb': operation.article_nb,
'group_id': operationgroup.pk,
'canceled_by__trigramme': None, 'canceled_at': None,
}
websocket_data['opegroups'][0]['opes'].append(ope_data)
# Need refresh from db cause we used update on queryset
operationgroup.checkout.refresh_from_db()
websocket_data['checkouts'] = [{
'id': operationgroup.checkout.pk,
'balance': operationgroup.checkout.balance,
}]
websocket_data['articles'] = []
# Need refresh from db cause we used update on querysets
articles_pk = [ article.pk for article in to_articles_stocks]
articles = Article.objects.values('id', 'stock').filter(pk__in=articles_pk)
for article in articles:
websocket_data['articles'].append({
'id': article['id'],
'stock': article['stock']
})
consumers.KPsul.group_send('kfet.kpsul', websocket_data)
return JsonResponse(data)
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@teamkfet_required
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def kpsul_cancel_operations(request):
# Pour la réponse
data = { 'canceled': [], 'warnings': {}, 'errors': {}}
# Checking if BAD REQUEST (opes_pk not int or not existing)
try:
# Set pour virer les doublons
opes_post = set(map(int, filter(None, request.POST.getlist('operations[]', []))))
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except ValueError:
return JsonResponse(data, status=400)
opes_all = (
Operation.objects
.select_related('group', 'group__on_acc', 'group__on_acc__negative')
.filter(pk__in=opes_post))
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opes_pk = [ ope.pk for ope in opes_all ]
opes_notexisting = [ ope for ope in opes_post if ope not in opes_pk ]
if opes_notexisting:
data['errors']['opes_notexisting'] = opes_notexisting
return JsonResponse(data, status=400)
opes_already_canceled = [] # Déjà annulée
opes = [] # Pas déjà annulée
required_perms = set()
stop_all = False
cancel_duration = Settings.CANCEL_DURATION()
to_accounts_balances = defaultdict(lambda:0) # Modifs à faire sur les balances des comptes
to_groups_amounts = defaultdict(lambda:0) # ------ sur les montants des groupes d'opé
to_checkouts_balances = defaultdict(lambda:0) # ------ sur les balances de caisses
to_articles_stocks = defaultdict(lambda:0) # ------ sur les stocks d'articles
for ope in opes_all:
if ope.canceled_at:
# Opération déjà annulée, va pour un warning en Response
opes_already_canceled.append(ope.pk)
else:
opes.append(ope.pk)
# Si opé il y a plus de CANCEL_DURATION, permission requise
if ope.group.at + cancel_duration < timezone.now():
required_perms.add('kfet.cancel_old_operations')
# Calcul de toutes modifs à faire en cas de validation
# Pour les balances de comptes
if not ope.group.on_acc.is_cash:
to_accounts_balances[ope.group.on_acc] -= ope.amount
if ope.addcost_for and ope.addcost_amount:
to_accounts_balances[ope.addcost_for] -= ope.addcost_amount
# Pour les groupes d'opés
to_groups_amounts[ope.group] -= ope.amount
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# Pour les balances de caisses
# Les balances de caisses dont il y a eu un relevé depuis la date
# de la commande ne doivent pas être modifiées
# TODO : Prendre en compte le dernier relevé où la caisse a été
# comptée et donc modifier les balance_old (et amount_error)
# des relevés suivants.
# Note : Dans le cas où un CheckoutStatement est mis à jour
# par `.save()`, amount_error est recalculé automatiquement,
# ce qui n'est pas le cas en faisant un update sur queryset
# TODO ? : Maj les balance_old de relevés pour modifier l'erreur
last_statement = (CheckoutStatement.objects
.filter(checkout=ope.group.checkout)
.order_by('at')
.last())
if not last_statement or last_statement.at < ope.group.at:
if ope.type == Operation.PURCHASE:
if ope.group.on_acc.is_cash:
to_checkouts_balances[ope.group.checkout] -= - ope.amount
else:
to_checkouts_balances[ope.group.checkout] -= ope.amount
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# Pour les stocks d'articles
# Les stocks d'articles dont il y a eu un inventaire depuis la date
# de la commande ne doivent pas être modifiés
# TODO : Prendre en compte le dernier inventaire où le stock a bien
# été compté (pas dans le cas d'une livraison).
# Note : si InventoryArticle est maj par .save(), stock_error
# est recalculé automatiquement
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if ope.article and ope.article_nb:
last_stock = (InventoryArticle.objects
.select_related('inventory')
.filter(article=ope.article)
.order_by('inventory__at')
.last())
if not last_stock or last_stock.inventory.at < ope.group.at:
to_articles_stocks[ope.article] += ope.article_nb
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if not opes:
data['warnings']['already_canceled'] = opes_already_canceled
return JsonResponse(data)
negative_accounts = []
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# Checking permissions or stop
for account in to_accounts_balances:
(perms, stop) = account.perms_to_perform_operation(
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amount = to_accounts_balances[account])
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required_perms |= perms
stop_all = stop_all or stop
if stop:
negative_accounts.append(account.trigramme)
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if stop_all or not request.user.has_perms(required_perms):
missing_perms = get_missing_perms(required_perms, request.user)
if missing_perms:
data['errors']['missing_perms'] = missing_perms
if stop_all:
data['errors']['negative'] = negative_accounts
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return JsonResponse(data, status=403)
canceled_by = required_perms and request.user.profile.account_kfet or None
canceled_at = timezone.now()
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with transaction.atomic():
(Operation.objects.filter(pk__in=opes)
.update(canceled_by=canceled_by, canceled_at=canceled_at))
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for account in to_accounts_balances:
Account.objects.filter(pk=account.pk).update(
balance = F('balance') + to_accounts_balances[account])
for checkout in to_checkouts_balances:
Checkout.objects.filter(pk=checkout.pk).update(
balance = F('balance') + to_checkouts_balances[checkout])
for group in to_groups_amounts:
OperationGroup.objects.filter(pk=group.pk).update(
amount = F('amount') + to_groups_amounts[group])
for article in to_articles_stocks:
Article.objects.filter(pk=article.pk).update(
stock = F('stock') + to_articles_stocks[article])
# Websocket data
websocket_data = { 'opegroups': [], 'opes': [], 'checkouts': [], 'articles': [] }
# Need refresh from db cause we used update on querysets
opegroups_pk = [ opegroup.pk for opegroup in to_groups_amounts ]
opegroups = (OperationGroup.objects
.values('id','amount','is_cof').filter(pk__in=opegroups_pk))
for opegroup in opegroups:
websocket_data['opegroups'].append({
'cancellation': True,
'id': opegroup['id'],
'amount': opegroup['amount'],
'is_cof': opegroup['is_cof'],
})
canceled_by__trigramme = canceled_by and canceled_by.trigramme or None
for ope in opes:
websocket_data['opes'].append({
'cancellation': True,
'id': ope,
'canceled_by__trigramme': canceled_by__trigramme,
'canceled_at': canceled_at,
})
# Need refresh from db cause we used update on querysets
checkouts_pk = [ checkout.pk for checkout in to_checkouts_balances]
checkouts = (Checkout.objects
.values('id', 'balance').filter(pk__in=checkouts_pk))
for checkout in checkouts:
websocket_data['checkouts'].append({
'id': checkout['id'],
'balance': checkout['balance']})
# Need refresh from db cause we used update on querysets
articles_pk = [ article.pk for articles in to_articles_stocks]
articles = Article.objects.values('id', 'stock').filter(pk__in=articles_pk)
for article in articles:
websocket_data['articles'].append({
'id': article['id'],
'stock': article['stock']})
consumers.KPsul.group_send('kfet.kpsul', websocket_data)
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data['canceled'] = opes
if opes_already_canceled:
data['warnings']['already_canceled'] = opes_already_canceled
return JsonResponse(data)
@login_required
def history_json(request):
# Récupération des paramètres
from_date = request.POST.get('from', None)
to_date = request.POST.get('to', None)
limit = request.POST.get('limit', None);
checkouts = request.POST.getlist('checkouts[]', None)
accounts = request.POST.getlist('accounts[]', None)
# Construction de la requête (sur les opérations) pour le prefetch
queryset_prefetch = Operation.objects.select_related(
'canceled_by__trigramme', 'addcost_for__trigramme',
'article__name')
# Construction de la requête principale
opegroups = (OperationGroup.objects
.prefetch_related(Prefetch('opes', queryset = queryset_prefetch))
.select_related('on_acc__trigramme', 'valid_by__trigramme')
.order_by('at')
)
# Application des filtres
if from_date:
opegroups = opegroups.filter(at__gte=from_date)
if to_date:
opegroups = opegroups.filter(at__lt=to_date)
if checkouts:
opegroups = opegroups.filter(checkout_id__in=checkouts)
if accounts:
opegroups = opegroups.filter(on_acc_id__in=accounts)
# Un non-membre de l'équipe n'a que accès à son historique
if not request.user.has_perm('kfet.is_team'):
opegroups = opegroups.filter(on_acc=request.user.profile.account_kfet)
if limit:
opegroups = opegroups[:limit]
# Construction de la réponse
opegroups_list = []
for opegroup in opegroups:
opegroup_dict = {
'id' : opegroup.id,
'amount' : opegroup.amount,
'at' : opegroup.at,
'checkout_id': opegroup.checkout_id,
'is_cof' : opegroup.is_cof,
'comment' : opegroup.comment,
'opes' : [],
'on_acc__trigramme':
opegroup.on_acc and opegroup.on_acc.trigramme or None,
}
if request.user.has_perm('kfet.is_team'):
opegroup_dict['valid_by__trigramme'] = (
opegroup.valid_by and opegroup.valid_by.trigramme or None)
for ope in opegroup.opes.all():
ope_dict = {
'id' : ope.id,
'type' : ope.type,
'amount' : ope.amount,
'article_nb' : ope.article_nb,
'is_checkout' : ope.is_checkout,
'addcost_amount': ope.addcost_amount,
'canceled_at' : ope.canceled_at,
'article__name':
ope.article and ope.article.name or None,
'addcost_for__trigramme':
ope.addcost_for and ope.addcost_for.trigramme or None,
}
if request.user.has_perm('kfet.is_team'):
ope_dict['canceled_by__trigramme'] = (
ope.canceled_by and ope.canceled_by.trigramme or None)
opegroup_dict['opes'].append(ope_dict)
opegroups_list.append(opegroup_dict)
return JsonResponse({ 'opegroups': opegroups_list })
@teamkfet_required
def kpsul_articles_data(request):
articles = (
Article.objects
.values('id', 'name', 'price', 'stock', 'category_id', 'category__name')
.filter(is_sold=True))
return JsonResponse({ 'articles': list(articles) })
@teamkfet_required
def history(request):
data = {
'filter_form': FilterHistoryForm(),
'settings': {
'subvention_cof': Settings.SUBVENTION_COF(),
}
}
return render(request, 'kfet/history.html', data)
# -----
# Settings views
# -----
class SettingsList(ListView):
model = Settings
context_object_name = 'settings'
template_name = 'kfet/settings.html'
def get_context_data(self, **kwargs):
Settings.create_missing()
return super(SettingsList, self).get_context_data(**kwargs)
class SettingsUpdate(SuccessMessageMixin, UpdateView):
model = Settings
form_class = SettingsForm
template_name = 'kfet/settings_update.html'
success_message = 'Paramètre %(name)s mis à jour'
success_url = reverse_lazy('kfet.settings')
def form_valid(self, form):
# Checking permission
if not self.request.user.has_perm('kfet.change_settings'):
form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Creating
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Settings.empty_cache()
return super(SettingsUpdate, self).form_valid(form)
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# -----
# Transfer views
# -----
@teamkfet_required
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def transfers(request):
transfergroups = (TransferGroup.objects
.prefetch_related('transfers')
.order_by('-at'))
return render(request, 'kfet/transfers.html', {
'transfergroups': transfergroups,
})
@teamkfet_required
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def transfers_create(request):
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transfer_formset = TransferFormSet(queryset=Transfer.objects.none())
return render(request, 'kfet/transfers_create.html',
{ 'transfer_formset': transfer_formset })
@teamkfet_required
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def perform_transfers(request):
data = { 'errors': {}, 'transfers': [], 'transfergroup': 0 }
# Checking transfer_formset
transfer_formset = TransferFormSet(request.POST)
if not transfer_formset.is_valid():
return JsonResponse({ 'errors': list(transfer_formset.errors)}, status=400)
transfers = transfer_formset.save(commit = False)
# Initializing vars
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required_perms = set(['kfet.add_transfer']) # Required perms to perform all transfers
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to_accounts_balances = defaultdict(lambda:0) # For balances of accounts
for transfer in transfers:
to_accounts_balances[transfer.from_acc] -= transfer.amount
to_accounts_balances[transfer.to_acc] += transfer.amount
stop_all = False
negative_accounts = []
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# Checking if ok on all accounts
for account in to_accounts_balances:
(perms, stop) = account.perms_to_perform_operation(
amount = to_accounts_balances[account])
required_perms |= perms
stop_all = stop_all or stop
if stop:
negative_accounts.append(account.trigramme)
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if stop_all or not request.user.has_perms(required_perms):
missing_perms = get_missing_perms(required_perms, request.user)
if missing_perms:
data['errors']['missing_perms'] = missing_perms
if stop_all:
data['errors']['negative'] = negative_accounts
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return JsonResponse(data, status=403)
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# Creating transfer group
transfergroup = TransferGroup()
if required_perms:
transfergroup.valid_by = request.user.profile.account_kfet
comment = request.POST.get('comment', '')
transfergroup.comment = comment.strip()
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with transaction.atomic():
# Updating balances accounts
for account in to_accounts_balances:
Account.objects.filter(pk=account.pk).update(
balance = F('balance') + to_accounts_balances[account])
account.refresh_from_db()
if account.balance < 0:
if hasattr(account, 'negative'):
if not account.negative.start:
account.negative.start = timezone.now()
account.negative.save()
else:
negative = AccountNegative(
account = account, start = timezone.now())
negative.save()
elif (hasattr(account, 'negative')
and not account.negative.balance_offset):
account.negative.delete()
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# Saving transfer group
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transfergroup.save()
data['transfergroup'] = transfergroup.pk
# Saving all transfers with group
for transfer in transfers:
transfer.group = transfergroup
transfer.save()
data['transfers'].append(transfer.pk)
return JsonResponse(data)
@teamkfet_required
def cancel_transfers(request):
# Pour la réponse
data = { 'canceled': [], 'warnings': {}, 'errors': {}}
# Checking if BAD REQUEST (transfers_pk not int or not existing)
try:
# Set pour virer les doublons
transfers_post = set(map(int, filter(None, request.POST.getlist('transfers[]', []))))
except ValueError:
return JsonResponse(data, status=400)
transfers_all = (
Transfer.objects
.select_related('group', 'from_acc', 'from_acc__negative',
'to_acc', 'to_acc__negative')
.filter(pk__in=transfers_post))
transfers_pk = [ transfer.pk for transfer in transfers_all ]
transfers_notexisting = [ transfer for transfer in transfers_post
if transfer not in transfers_pk ]
if transfers_notexisting:
data['errors']['transfers_notexisting'] = transfers_notexisting
return JsonResponse(data, status=400)
transfers_already_canceled = [] # Déjà annulée
transfers = [] # Pas déjà annulée
required_perms = set()
stop_all = False
cancel_duration = Settings.CANCEL_DURATION()
to_accounts_balances = defaultdict(lambda:0) # Modifs à faire sur les balances des comptes
for transfer in transfers_all:
if transfer.canceled_at:
# Transfert déjà annulé, va pour un warning en Response
transfers_already_canceled.append(transfer.pk)
else:
transfers.append(transfer.pk)
# Si transfer il y a plus de CANCEL_DURATION, permission requise
if transfer.group.at + cancel_duration < timezone.now():
required_perms.add('kfet.cancel_old_operations')
# Calcul de toutes modifs à faire en cas de validation
# Pour les balances de comptes
to_accounts_balances[transfer.from_acc] += transfer.amount
to_accounts_balances[transfer.to_acc] += -transfer.amount
if not transfers:
data['warnings']['already_canceled'] = transfers_already_canceled
return JsonResponse(data)
negative_accounts = []
# Checking permissions or stop
for account in to_accounts_balances:
(perms, stop) = account.perms_to_perform_operation(
amount = to_accounts_balances[account])
required_perms |= perms
stop_all = stop_all or stop
if stop:
negative_accounts.append(account.trigramme)
print(required_perms)
print(request.user.get_all_permissions())
if stop_all or not request.user.has_perms(required_perms):
missing_perms = get_missing_perms(required_perms, request.user)
if missing_perms:
data['errors']['missing_perms'] = missing_perms
if stop_all:
data['errors']['negative'] = negative_accounts
return JsonResponse(data, status=403)
canceled_by = required_perms and request.user.profile.account_kfet or None
canceled_at = timezone.now()
with transaction.atomic():
(Transfer.objects.filter(pk__in=transfers)
.update(canceled_by=canceled_by, canceled_at=canceled_at))
for account in to_accounts_balances:
Account.objects.filter(pk=account.pk).update(
balance = F('balance') + to_accounts_balances[account])
account.refresh_from_db()
if account.balance < 0:
if hasattr(account, 'negative'):
if not account.negative.start:
account.negative.start = timezone.now()
account.negative.save()
else:
negative = AccountNegative(
account = account, start = timezone.now())
negative.save()
elif (hasattr(account, 'negative')
and not account.negative.balance_offset):
account.negative.delete()
data['canceled'] = transfers
if transfers_already_canceled:
data['warnings']['already_canceled'] = transfers_already_canceled
return JsonResponse(data)
class InventoryList(ListView):
queryset = (Inventory.objects
.select_related('by', 'order')
.annotate(nb_articles=Count('articles'))
.order_by('-at'))
template_name = 'kfet/inventory.html'
context_object_name = 'inventories'
@teamkfet_required
def inventory_create(request):
articles = (Article.objects
.select_related('category')
.order_by('category__name', 'name')
)
initial = []
for article in articles:
initial.append({
'article' : article.pk,
'stock_old': article.stock,
'name' : article.name,
'category' : article.category_id,
'category__name': article.category.name
})
cls_formset = formset_factory(
form = InventoryArticleForm,
extra = 0,
)
if request.POST:
formset = cls_formset(request.POST, initial=initial)
if not request.user.has_perm('kfet.add_inventory'):
messages.error(request, 'Permission refusée')
elif formset.is_valid():
with transaction.atomic():
articles = Article.objects.select_for_update()
inventory = Inventory()
inventory.by = request.user.profile.account_kfet
saved = False
for form in formset:
if form.cleaned_data['stock_new'] is not None:
if not saved:
inventory.save()
saved = True
article = articles.get(pk=form.cleaned_data['article'].pk)
stock_old = article.stock
stock_new = form.cleaned_data['stock_new']
InventoryArticle.objects.create(
inventory = inventory,
article = article,
stock_old = stock_old,
stock_new = stock_new)
article.stock = stock_new
article.save()
if saved:
messages.success(request, 'Inventaire créé')
return redirect('kfet.inventory')
messages.warning(request, 'Bah alors ? On a rien compté ?')
else:
messages.error(request, 'Pas marché')
else:
formset = cls_formset(initial = initial)
return render(request, 'kfet/inventory_create.html', {
'formset': formset,
})
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class InventoryRead(DetailView):
model = Inventory
template_name = 'kfet/inventory_read.html'
context_object_name = 'inventory'
def get_context_data(self, **kwargs):
context = super(InventoryRead, self).get_context_data(**kwargs)
inventoryarticles = (InventoryArticle.objects
.select_related('article', 'article__category')
.filter(inventory = self.object)
.order_by('article__category__name', 'article__name'))
context['inventoryarts'] = inventoryarticles
return context
# -----
# Order views
# -----
class OrderList(ListView):
queryset = Order.objects.select_related('supplier', 'inventory')
template_name = 'kfet/order.html'
context_object_name = 'orders'
def get_context_data(self, **kwargs):
context = super(OrderList, self).get_context_data(**kwargs)
context['suppliers'] = Supplier.objects.order_by('name')
return context
@teamkfet_required
def order_create(request, pk):
supplier = get_object_or_404(Supplier, pk=pk)
articles = (Article.objects
.filter(suppliers=supplier.pk)
.select_related('category')
.order_by('category__name', 'name'))
initial = []
today = timezone.now().date()
sales_q = (Operation.objects
.select_related('group')
.filter(article__in=articles, canceled_at=None)
.values('article'))
sales_s1 = (sales_q
.filter(
group__at__gte = today-timedelta(weeks=5),
group__at__lt = today-timedelta(weeks=4))
.annotate(nb=Sum('article_nb'))
)
sales_s1 = { d['article']:d['nb'] for d in sales_s1 }
sales_s2 = (sales_q
.filter(
group__at__gte = today-timedelta(weeks=4),
group__at__lt = today-timedelta(weeks=3))
.annotate(nb=Sum('article_nb'))
)
sales_s2 = { d['article']:d['nb'] for d in sales_s2 }
sales_s3 = (sales_q
.filter(
group__at__gte = today-timedelta(weeks=3),
group__at__lt = today-timedelta(weeks=2))
.annotate(nb=Sum('article_nb'))
)
sales_s3 = { d['article']:d['nb'] for d in sales_s3 }
sales_s4 = (sales_q
.filter(
group__at__gte = today-timedelta(weeks=2),
group__at__lt = today-timedelta(weeks=1))
.annotate(nb=Sum('article_nb'))
)
sales_s4 = { d['article']:d['nb'] for d in sales_s4 }
sales_s5 = (sales_q
.filter(group__at__gte = today-timedelta(weeks=1))
.annotate(nb=Sum('article_nb'))
)
sales_s5 = { d['article']:d['nb'] for d in sales_s5 }
for article in articles:
v_s1 = sales_s1.get(article.pk, 0)
v_s2 = sales_s2.get(article.pk, 0)
v_s3 = sales_s3.get(article.pk, 0)
v_s4 = sales_s4.get(article.pk, 0)
v_s5 = sales_s5.get(article.pk, 0)
v_all = [v_s1, v_s2, v_s3, v_s4, v_s5]
v_3max = heapq.nlargest(3, v_all)
v_moy = statistics.mean(v_3max)
v_et = statistics.pstdev(v_3max, v_moy)
v_prev = v_moy + v_et
c_rec_tot = max(v_prev * 1.5 - article.stock, 0)
if article.box_capacity:
c_rec_temp = c_rec_tot / article.box_capacity
if c_rec_temp >= 10:
c_rec = round(c_rec_temp)
elif c_rec_temp > 5:
c_rec = 10
elif c_rec_temp > 2:
c_rec = 5
else:
c_rec = round(c_rec_temp)
initial.append({
'article': article.pk,
'name': article.name,
'category': article.category_id,
'category__name': article.category.name,
'stock': article.stock,
'box_capacity': article.box_capacity,
'v_s1': v_s1,
'v_s2': v_s2,
'v_s3': v_s3,
'v_s4': v_s4,
'v_s5': v_s5,
'v_moy': round(v_moy),
'v_et': round(v_et),
'v_prev': round(v_prev),
'c_rec': article.box_capacity and c_rec or round(c_rec_tot),
})
cls_formset = formset_factory(
form = OrderArticleForm,
extra = 0)
if request.POST:
formset = cls_formset(request.POST, initial=initial)
if not request.user.has_perm('kfet.add_order'):
messages.error(request, 'Permission refusée')
elif formset.is_valid():
order = Order()
order.supplier = supplier
saved = False
for form in formset:
if form.cleaned_data['quantity_ordered'] is not None:
if not saved:
order.save()
saved = True
article = articles.get(pk=form.cleaned_data['article'].pk)
q_ordered = form.cleaned_data['quantity_ordered']
if article.box_capacity:
q_ordered *= article.box_capacity
OrderArticle.objects.create(
order = order,
article = article,
quantity_ordered = q_ordered)
if saved:
messages.success(request, 'Commande créée')
return redirect('kfet.order.read', order.pk)
messages.warning(request, 'Rien commandé => Pas de commande')
else:
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messages.error(request, 'Corrigez les erreurs')
else:
formset = cls_formset(initial=initial)
return render(request, 'kfet/order_create.html', {
'supplier': supplier,
'formset' : formset,
})
class OrderRead(DetailView):
model = Order
template_name = 'kfet/order_read.html'
context_object_name = 'order'
def get_context_data(self, **kwargs):
context = super(OrderRead, self).get_context_data(**kwargs)
orderarticles = (OrderArticle.objects
.select_related('article', 'article__category')
.filter(order=self.object)
.order_by('article__category__name', 'article__name')
)
context['orderarts'] = orderarticles
mail = ("Bonjour,\n\nNous voudrions pour le ##DATE## à la K-Fêt de "
"l'ENS Ulm :")
category = 0
for orderarticle in orderarticles:
if category != orderarticle.article.category:
category = orderarticle.article.category
mail += '\n'
nb = orderarticle.quantity_ordered
box = ''
if orderarticle.article.box_capacity:
nb /= orderarticle.article.box_capacity
if nb >= 2:
box = ' %ss de' % orderarticle.article.box_type
else:
box = ' %s de' % orderarticle.article.box_type
name = orderarticle.article.name.capitalize()
mail += "\n- %s%s %s" % (round(nb), box, name)
mail += ("\n\nMerci d'appeler le numéro suivant lorsque les livreurs "
"sont là : ##TELEPHONE##\nCordialement,\n##PRENOM## ##NOM## "
", pour la K-Fêt de l'ENS Ulm")
context['mail'] = mail
return context
@teamkfet_required
def order_to_inventory(request, pk):
order = get_object_or_404(Order, pk=pk)
if hasattr(order, 'inventory'):
raise Http404
articles = (Article.objects
.filter(orders=order.pk)
.select_related('category')
.prefetch_related(Prefetch('orderarticle_set',
queryset = OrderArticle.objects.filter(order=order),
to_attr = 'order'))
.prefetch_related(Prefetch('supplierarticle_set',
queryset = (SupplierArticle.objects
.filter(supplier=order.supplier)
.order_by('-at')),
to_attr = 'supplier'))
.order_by('category__name', 'name'))
initial = []
for article in articles:
initial.append({
'article': article.pk,
'name': article.name,
'category': article.category_id,
'category__name': article.category.name,
'quantity_ordered': article.order[0].quantity_ordered,
'quantity_received': article.order[0].quantity_ordered,
'price_HT': article.supplier[0].price_HT,
'TVA': article.supplier[0].TVA,
'rights': article.supplier[0].rights,
})
cls_formset = formset_factory(OrderArticleToInventoryForm, extra=0)
if request.method == 'POST':
formset = cls_formset(request.POST, initial=initial)
if not request.user.has_perm('kfet.order_to_inventory'):
messages.error(request, 'Permission refusée')
elif formset.is_valid():
with transaction.atomic():
inventory = Inventory()
inventory.order = order
inventory.by = request.user.profile.account_kfet
inventory.save()
for form in formset:
q_received = form.cleaned_data['quantity_received']
article = form.cleaned_data['article']
SupplierArticle.objects.create(
supplier = order.supplier,
article = article,
price_HT = form.cleaned_data['price_HT'],
TVA = form.cleaned_data['TVA'],
rights = form.cleaned_data['rights'])
(OrderArticle.objects
.filter(order=order, article=article)
.update(quantity_received = q_received))
InventoryArticle.objects.create(
inventory = inventory,
article = article,
stock_old = article.stock,
stock_new = article.stock + q_received)
article.stock += q_received
if q_received > 0:
article.is_sold = True
article.save()
messages.success(request, "C'est tout bon !")
return redirect('kfet.order')
else:
messages.error(request, "Corrigez les erreurs")
else:
formset = cls_formset(initial=initial)
return render(request, 'kfet/order_to_inventory.html', {
'formset': formset,
})
class SupplierUpdate(SuccessMessageMixin, UpdateView):
model = Supplier
template_name = 'kfet/supplier_form.html'
fields = ['name', 'address', 'email', 'phone', 'comment']
success_url = reverse_lazy('kfet.order')
sucess_message = 'Données fournisseur mis à jour'
# Surcharge de la validation
def form_valid(self, form):
# Checking permission
if not self.request.user.has_perm('kfet.change_supplier'):
form.add_error(None, 'Permission refusée')
return self.form_invalid(form)
# Updating
return super(SupplierUpdate, self).form_valid(form)