import heapq import statistics from collections import defaultdict from datetime import datetime, timedelta from decimal import Decimal from typing import List, Tuple from urllib.parse import urlencode from django.conf import settings from django.contrib import messages from django.contrib.auth.decorators import login_required, permission_required from django.contrib.auth.mixins import PermissionRequiredMixin from django.contrib.auth.models import Permission, User from django.contrib.messages.views import SuccessMessageMixin from django.core.exceptions import SuspiciousOperation from django.db import transaction from django.db.models import ( Count, DecimalField, ExpressionWrapper, F, Max, OuterRef, Prefetch, Q, Subquery, Sum, ) from django.forms import ValidationError, formset_factory from django.http import ( Http404, HttpResponseBadRequest, HttpResponseForbidden, JsonResponse, ) from django.shortcuts import get_object_or_404, redirect, render from django.urls import reverse, reverse_lazy from django.utils import timezone from django.utils.decorators import method_decorator from django.views.generic import DetailView, FormView, ListView, TemplateView from django.views.generic.detail import BaseDetailView from django.views.generic.edit import CreateView, DeleteView, UpdateView from gestioncof.models import CofProfile from kfet import KFET_DELETED_TRIGRAMME from kfet.auth.decorators import kfet_password_auth from kfet.autocomplete import kfet_account_only_autocomplete, kfet_autocomplete from kfet.config import kfet_config from kfet.consumers import KPsul from kfet.decorators import teamkfet_required from kfet.forms import ( AccountForm, AccountFrozenForm, AccountNoTriForm, AccountPwdForm, AccountStatForm, AccountTriForm, AddcostForm, ArticleForm, ArticleRestrictForm, CategoryForm, CheckoutForm, CheckoutRestrictForm, CheckoutStatementCreateForm, CheckoutStatementUpdateForm, CofForm, FilterHistoryForm, InventoryArticleForm, KFetConfigForm, KPsulAccountForm, KPsulCheckoutForm, KPsulOperationFormSet, KPsulOperationGroupForm, OrderArticleForm, OrderArticleToInventoryForm, StatScaleForm, TransferFormSet, UserForm, UserGroupForm, UserInfoForm, ) from kfet.models import ( Account, AccountNegative, Article, ArticleCategory, Checkout, CheckoutStatement, Inventory, InventoryArticle, Operation, OperationGroup, Order, OrderArticle, Supplier, SupplierArticle, Transfer, TransferGroup, ) from kfet.statistic import SCALE_DICT, DayScale, MonthScale, WeekScale, scale_url_params from shared.views import AutocompleteView from .auth import KFET_GENERIC_TRIGRAMME from .auth.views import ( # noqa AccountGroupCreate, AccountGroupUpdate, account_group, login_generic, ) def put_cleaned_data_in_dict(dict, form): for field in form.cleaned_data: dict[field] = form.cleaned_data[field] # ----- # Account views # ----- # Account - General @login_required @teamkfet_required def account(request): accounts = Account.objects.select_related("cofprofile__user").order_by("trigramme") return render(request, "kfet/account.html", {"accounts": accounts}) @login_required @teamkfet_required def account_is_validandfree_ajax(request): 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 @kfet_password_auth def account_create(request): # Enregistrement if request.method == "POST": trigramme_form = AccountTriForm(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(), ) ): # Checking permission if not request.user.has_perm("kfet.add_account"): messages.error( request, "Permission refusée", extra_tags="permission-denied" ) 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() 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, }, ) def account_form_set_readonly_fields(user_form, cof_form): user_form.fields["username"].widget.attrs["readonly"] = True user_form.fields["first_name"].widget.attrs["readonly"] = True user_form.fields["last_name"].widget.attrs["readonly"] = True user_form.fields["email"].widget.attrs["readonly"] = True cof_form.fields["login_clipper"].widget.attrs["readonly"] = True cof_form.fields["departement"].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 ): user = None clipper = False if login_clipper and (login_clipper == username or not username): # à partir d'un clipper # le user associé à ce clipper ne devrait pas encore exister clipper = True try: # Vérification que clipper ne soit pas déjà dans User user = User.objects.get(username=login_clipper) # Ici, on nous a menti, le user existe déjà username = user.username clipper = False except User.DoesNotExist: # Clipper (sans user déjà existant) # UserForm - Prefill user_initial = { "username": login_clipper, "email": "%s@clipper.ens.fr" % login_clipper, } if fullname: # Prefill du nom et prénom names = fullname.split() # Le premier, c'est le prénom user_initial["first_name"] = names[0] if len(names) > 1: # Si d'autres noms -> tous dans le nom de famille user_initial["last_name"] = " ".join(names[1:]) # CofForm - Prefill cof_initial = {"login_clipper": login_clipper} # Form créations if request: user_form = UserForm(request.POST, initial=user_initial) cof_form = CofForm(request.POST, initial=cof_initial) else: user_form = UserForm(initial=user_initial) cof_form = CofForm(initial=cof_initial) # Protection (read-only) des champs username et login_clipper account_form_set_readonly_fields(user_form, cof_form) if username and not clipper: try: user = User.objects.get(username=username) # le user existe déjà # récupération du profil cof (cof, _) = CofProfile.objects.get_or_create(user=user) # UserForm + CofForm - Création à partir des instances existantes if request: user_form = UserForm(request.POST, instance=user) cof_form = CofForm(request.POST, instance=cof) else: user_form = UserForm(instance=user) cof_form = CofForm(instance=cof) # Protection (read-only) des champs username, login_clipper et is_cof account_form_set_readonly_fields(user_form, cof_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: # connaît pas du tout, faut tout remplir if request: user_form = UserForm(request.POST) cof_form = CofForm(request.POST) else: user_form = UserForm() cof_form = CofForm() # mais on laisse le username en écriture cof_form.fields["login_clipper"].widget.attrs["readonly"] = True cof_form.fields["is_cof"].widget.attrs["disabled"] = True if request: account_form = AccountNoTriForm(request.POST) else: account_form = AccountNoTriForm() return {"account_form": account_form, "cof_form": cof_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"], }, ) # Account - Read @login_required def account_read(request, trigramme): account = get_object_or_404(Account, trigramme=trigramme) # Checking permissions if not account.readable or ( not request.user.has_perm("kfet.is_team") and request.user != account.user ): raise Http404 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} ) # Account - Update @teamkfet_required @kfet_password_auth def account_update(request, trigramme): account = get_object_or_404(Account, trigramme=trigramme) # Checking permissions if not account.editable: # Plus de leak de trigramme ! return HttpResponseForbidden user_info_form = UserInfoForm(instance=account.user) account_form = AccountForm(instance=account) group_form = UserGroupForm(instance=account.user) frozen_form = AccountFrozenForm(request.POST, instance=account) pwd_form = AccountPwdForm() if request.method == "POST": self_update = request.user == account.user account_form = AccountForm(request.POST, instance=account) group_form = UserGroupForm(request.POST, instance=account.user) frozen_form = AccountFrozenForm(request.POST, instance=account) pwd_form = AccountPwdForm(request.POST, account=account) forms = [] warnings = [] if self_update or request.user.has_perm("kfet.change_account"): forms.append(account_form) elif account_form.has_changed(): warnings.append("compte") if request.user.has_perm("kfet.manage_perms"): forms.append(group_form) forms.append(frozen_form) elif group_form.has_changed(): warnings.append("statut d'équipe") # Il ne faut pas valider `pwd_form` si elle est inchangée if pwd_form.has_changed(): if self_update or request.user.has_perm("kfet.change_account_password"): forms.append(pwd_form) else: warnings.append("mot de passe") # Updating account info if forms == []: messages.error( request, "Informations non mises à jour : permission refusée", extra_tags="permission-denied", ) else: if all(form.is_valid() for form in forms): for form in forms: form.save() if len(warnings): messages.warning( request, "Permissions insuffisantes pour modifier" " les informations suivantes : {}.".format(", ".join(warnings)), ) if self_update: messages.success(request, "Vos informations ont été mises à jour !") else: messages.success( request, "Informations du compte %s mises à jour" % account.trigramme, ) return redirect("kfet.account.read", account.trigramme) else: messages.error( request, "Informations non mises à jour : corrigez les erreurs" ) return render( request, "kfet/account_update.html", { "user_info_form": user_info_form, "account": account, "account_form": account_form, "frozen_form": frozen_form, "group_form": group_form, "pwd_form": pwd_form, }, ) # Account - Delete class AccountDelete(PermissionRequiredMixin, DeleteView): model = Account slug_field = "trigramme" slug_url_kwarg = "trigramme" success_url = reverse_lazy("kfet.account") success_message = "Compte supprimé avec succès !" permission_required = "kfet.delete_account" http_method_names = ["post"] def delete(self, request, *args, **kwargs): self.object = self.get_object() if self.object.balance >= 0.01: messages.error( request, "Impossible de supprimer un compte " "avec une balance strictement positive !", ) return redirect("kfet.account.read", self.object.trigramme) if self.object.trigramme in [ "LIQ", KFET_GENERIC_TRIGRAMME, KFET_DELETED_TRIGRAMME, "#13", ]: messages.error(request, "Impossible de supprimer un trigramme protégé !") return redirect("kfet.account.read", self.object.trigramme) # SuccessMessageMixin does not work with DeleteView, see : # https://code.djangoproject.com/ticket/21926 messages.success(request, self.success_message) return super().delete(request, *args, **kwargs) class AccountNegativeList(ListView): queryset = ( AccountNegative.objects.select_related("account", "account__cofprofile__user") .filter(account__balance__lt=0) .exclude(account__trigramme="#13") ) template_name = "kfet/account_negative.html" context_object_name = "negatives" def get_context_data(self, **kwargs): context = super().get_context_data(**kwargs) balances = (neg.account.balance for neg in self.object_list) context["negatives_sum"] = sum(balances) return context # ----- # Checkout views # ----- # Checkout - General class CheckoutList(ListView): model = Checkout template_name = "kfet/checkout.html" context_object_name = "checkouts" # Checkout - Create @method_decorator(kfet_password_auth, name="dispatch") 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 if not self.request.user.has_perm("kfet.add_checkout"): form.add_error( None, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) # Creating form.instance.created_by = self.request.user.profile.account_kfet form.save() return super().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().get_context_data(**kwargs) context["statements"] = context["checkout"].statements.order_by("-at") return context # Checkout - Update @method_decorator(kfet_password_auth, name="dispatch") 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 if not self.request.user.has_perm("kfet.change_checkout"): form.add_error( None, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) # Updating return super().form_valid(form) # ----- # 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 ) @method_decorator(kfet_password_auth, name="dispatch") class CheckoutStatementCreate(SuccessMessageMixin, CreateView): model = CheckoutStatement template_name = "kfet/checkoutstatement_create.html" form_class = CheckoutStatementCreateForm 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().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, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) # Creating form.instance.amount_taken = getAmountTaken(form.instance) if not form.instance.not_count: form.instance.balance_new = getAmountBalance(form.cleaned_data) form.instance.checkout_id = self.kwargs["pk_checkout"] form.instance.by = self.request.user.profile.account_kfet return super().form_valid(form) @method_decorator(kfet_password_auth, name="dispatch") 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().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, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) # Updating form.instance.amount_taken = getAmountTaken(form.instance) return super().form_valid(form) # ----- # Category views # ----- # Category - General class CategoryList(ListView): queryset = ArticleCategory.objects.prefetch_related("articles").order_by("name") template_name = "kfet/category.html" context_object_name = "categories" # Category - Update @method_decorator(kfet_password_auth, name="dispatch") class CategoryUpdate(SuccessMessageMixin, UpdateView): model = ArticleCategory template_name = "kfet/category_update.html" form_class = CategoryForm success_url = reverse_lazy("kfet.category") success_message = "Informations mises à jour pour la catégorie : %(name)s" # Surcharge de la validation def form_valid(self, form): # Checking permission if not self.request.user.has_perm("kfet.change_articlecategory"): form.add_error( None, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) # Updating return super().form_valid(form) # ----- # Article views # ----- # Article - General class ArticleList(ListView): queryset = ( Article.objects.select_related("category") .prefetch_related( Prefetch( "inventories", queryset=Inventory.objects.order_by("-at"), to_attr="inventory", ) ) .order_by("category__name", "-is_sold", "name") ) template_name = "kfet/article.html" context_object_name = "articles" def get_context_data(self, **kwargs): context = super().get_context_data(**kwargs) articles = context[self.context_object_name] context["nb_articles"] = len(articles) context[self.context_object_name] = articles.filter(is_sold=True) context["not_sold_articles"] = articles.filter(is_sold=False) return context # Article - Create @method_decorator(kfet_password_auth, name="dispatch") 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, ValidationError("Permission refusée", code="permission-denied") ) 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().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().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 @method_decorator(kfet_password_auth, name="dispatch") 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, ValidationError("Permission refusée", code="permission-denied") ) 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().form_valid(form) class ArticleDelete(PermissionRequiredMixin, DeleteView): model = Article success_url = reverse_lazy("kfet.article") success_message = "Article supprimé avec succès !" permission_required = "kfet.delete_article" def get(self, request, *args, **kwargs): return redirect("kfet.article.read", self.kwargs.get(self.pk_url_kwarg)) def delete(self, request, *args, **kwargs): messages.success(request, self.success_message) return super().delete(request, *args, **kwargs) # ----- # K-Psul # ----- @teamkfet_required def kpsul(request): data = {} data["operationgroup_form"] = KPsulOperationGroupForm() data["trigramme_form"] = KPsulAccountForm() data["checkout_form"] = KPsulCheckoutForm() data["operation_formset"] = KPsulOperationFormSet(queryset=Operation.objects.none()) return render(request, "kfet/kpsul.html", data) @teamkfet_required def kpsul_get_settings(request): addcost_for = kfet_config.addcost_for data = { "subvention_cof": kfet_config.subvention_cof, "addcost_for": addcost_for and addcost_for.trigramme or "", "addcost_amount": kfet_config.addcost_amount, } return JsonResponse(data) @teamkfet_required def account_read_json(request, trigramme): account = get_object_or_404(Account, trigramme=trigramme) if not account.readable: raise Http404 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): pk = request.POST.get("pk", 0) if not pk: pk = 0 data = ( Checkout.objects.annotate( last_statement_by_first_name=F( "statements__by__cofprofile__user__first_name" ), last_statement_by_last_name=F( "statements__by__cofprofile__user__last_name" ), last_statement_by_trigramme=F("statements__by__trigramme"), last_statement_balance=F("statements__balance_new"), last_statement_at=F("statements__at"), ) .select_related( "statements" "statements__by", "statements__by__cofprofile__user" ) .filter(pk=pk) .order_by("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", ) .last() ) if data is None: raise Http404 return JsonResponse(data) @teamkfet_required @kfet_password_auth def kpsul_update_addcost(request): addcost_form = AddcostForm(request.POST) data = {"errors": []} if not addcost_form.is_valid(): for field, errors in addcost_form.errors.items(): for error in errors: data["errors"].append({"code": f"invalid_{field}", "message": error}) return JsonResponse(data, status=400) required_perms = ["kfet.manage_addcosts"] if not request.user.has_perms(required_perms): data["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 amount = addcost_form.cleaned_data["amount"] kfet_config.set(addcost_for=account, addcost_amount=amount) data = { "addcost": {"for": account and account.trigramme or None, "amount": amount}, "type": "kpsul", } KPsul.group_send("kfet.kpsul", data) return JsonResponse(data) def get_missing_perms(required_perms: List[str], user: User) -> List[str]: def get_perm_name(app_label: str, codename: str) -> str: return Permission.objects.values_list("name", flat=True).get( codename=codename, content_type__app_label=app_label ) missing_perms = [ get_perm_name(*perm.split(".")) for perm in required_perms if not user.has_perm(perm) ] return missing_perms @teamkfet_required @kfet_password_auth def kpsul_perform_operations(request): # Initializing response data data = {"errors": []} # Checking operationgroup operationgroup_form = KPsulOperationGroupForm(request.POST) if not operationgroup_form.is_valid(): for field in operationgroup_form.errors: verbose_field, feminin = ( ("compte", "") if field == "on_acc" else ("caisse", "e") ) data["errors"].append( { "code": f"invalid_{field}", "message": f"Pas de {verbose_field} sélectionné{feminin}", } ) # Checking operation_formset operation_formset = KPsulOperationFormSet(request.POST) if not operation_formset.is_valid(): data["errors"].append( { "code": "invalid_formset", "message": "Formulaire d'opérations vide ou invalide", } ) # 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) on_acc = operationgroup.on_acc # Retrieving COF grant cof_grant = kfet_config.subvention_cof # Retrieving addcosts data addcost_amount = kfet_config.addcost_amount addcost_for = kfet_config.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 = all((addcost_for, addcost_amount, addcost_for != on_acc)) need_comment = on_acc.need_comment if on_acc.is_frozen: data["errors"].append( {"code": "frozen_acc", "message": f"Le compte {on_acc.trigramme} est gelé"} ) # 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.article.category.has_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 on_acc.is_cash: to_checkout_balance += -operation.amount if on_acc.is_cof and operation.article.category.has_reduction: if is_addcost and operation.article.category.has_addcost: operation.addcost_amount /= cof_grant_divisor operation.amount = operation.amount / cof_grant_divisor to_articles_stocks[operation.article] -= operation.article_nb else: if on_acc.is_cash: data["errors"].append( { "code": "invalid_liq", "message": ( "Impossible de compter autre chose que des achats sur LIQ" ), } ) if operation.type != Operation.EDIT: to_checkout_balance += operation.amount operationgroup.amount += operation.amount if operation.type == Operation.DEPOSIT: required_perms.add("kfet.perform_deposit") if operation.type == Operation.EDIT: required_perms.add("kfet.edit_balance_account") need_comment = True if on_acc.is_cof: to_addcost_for_balance = to_addcost_for_balance / cof_grant_divisor (perms, stop) = on_acc.perms_to_perform_operation(amount=operationgroup.amount) required_perms |= perms if stop: data["errors"].append( { "code": "negative", "message": f"Le compte {on_acc.trigramme} a un solde insuffisant.", } ) if need_comment: operationgroup.comment = operationgroup.comment.strip() if not operationgroup.comment: data["need_comment"] = True if data["errors"] or "need_comment" in data: return JsonResponse(data, status=400) if not request.user.has_perms(required_perms): data["missing_perms"] = get_missing_perms(required_perms, request.user) 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 = 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 on_acc.is_cash: ( Account.objects.filter(pk=on_acc.pk).update( balance=F("balance") + operationgroup.amount ) ) on_acc.refresh_from_db() on_acc.update_negative() # Updating checkout's balance if to_checkout_balance: Checkout.objects.filter(pk=operationgroup.checkout.pk).update( balance=F("balance") + to_checkout_balance ) # 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() # Filling operationgroup id for each operations and saving for operation in operations: operation.group = operationgroup operation.save() # 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 = {"type": "kpsul"} websocket_data["groups"] = [ { "add": True, "type": "operation", "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": on_acc.trigramme, "entries": [], } ] for operation in operations: ope_data = { "id": operation.pk, "type": operation.type, "amount": operation.amount, "addcost_amount": operation.addcost_amount, "addcost_for__trigramme": ( operation.addcost_for and addcost_for.trigramme or None ), "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["groups"][0]["entries"].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"]} ) KPsul.group_send("kfet.kpsul", websocket_data) return JsonResponse(data) @teamkfet_required @kfet_password_auth def 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[]", []))) ) except ValueError: data["errors"].append( {"code": "invalid_request", "message": "Requête invalide !"} ) return JsonResponse(data, status=400) opes_all = Operation.objects.select_related( "group", "group__on_acc", "group__on_acc__negative" ).filter(pk__in=opes_post) 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"].append( { "code": "cancel_missing", "message": "Opérations inexistantes : {}".format( ", ".join(map(str, opes_notexisting)) ), } ) return JsonResponse(data, status=400) opes_already_canceled = [] # Déjà annulée opes = [] # Pas déjà annulée required_perms = set() cancel_duration = kfet_config.cancel_duration # Modifs à faire sur les balances des comptes to_accounts_balances = defaultdict(int) # ------ sur les montants des groupes d'opé to_groups_amounts = defaultdict(int) # ------ sur les balances de caisses to_checkouts_balances = defaultdict(int) # ------ sur les stocks d'articles to_articles_stocks = defaultdict(int) 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 # 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.is_checkout: if ope.group.on_acc.is_cash: to_checkouts_balances[ope.group.checkout] -= -ope.amount else: to_checkouts_balances[ope.group.checkout] -= ope.amount # 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 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 if not opes: data["warnings"]["already_canceled"] = opes_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 if stop: negative_accounts.append(account.trigramme) if negative_accounts: data["errors"].append( { "code": "negative", "message": "Solde insuffisant pour les comptes suivants : {}".format( ", ".join(negative_accounts) ), } ) return JsonResponse(data, status=400) if not request.user.has_perms(required_perms): data["missing_perms"] = get_missing_perms(required_perms, request.user) return JsonResponse(data, status=403) canceled_by = required_perms and request.user.profile.account_kfet or None canceled_at = timezone.now() with transaction.atomic(): ( Operation.objects.filter(pk__in=opes).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] ) ) if not account.is_cash: # Should always be true, but we want to be sure account.refresh_from_db() account.update_negative() 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] ) # Need refresh from db cause we used update on querysets. # Sort objects by pk to get deterministic responses. opegroups_pk = [opegroup.pk for opegroup in to_groups_amounts] opegroups = ( OperationGroup.objects.values("id", "amount", "is_cof") .filter(pk__in=opegroups_pk) .order_by("pk") ) opes = ( Operation.objects.values("id", "canceled_at", "canceled_by__trigramme") .filter(pk__in=opes) .order_by("pk") ) checkouts_pk = [checkout.pk for checkout in to_checkouts_balances] checkouts = ( Checkout.objects.values("id", "balance") .filter(pk__in=checkouts_pk) .order_by("pk") ) articles_pk = [article.pk for articles in to_articles_stocks] articles = Article.objects.values("id", "stock").filter(pk__in=articles_pk) # Websocket data websocket_data = {"checkouts": [], "articles": [], "type": "kpsul"} for checkout in checkouts: websocket_data["checkouts"].append( {"id": checkout["id"], "balance": checkout["balance"]} ) for article in articles: websocket_data["articles"].append( {"id": article["id"], "stock": article["stock"]} ) KPsul.group_send("kfet.kpsul", websocket_data) data["canceled"] = list(opes) data["opegroups_to_update"] = list(opegroups) if opes_already_canceled: data["warnings"]["already_canceled"] = opes_already_canceled return JsonResponse(data) def get_history_limit(user) -> Tuple[datetime, datetime]: """returns a tuple of 2 dates - the earliest date the given user can view history of any account - the earliest date the given user can view history of special accounts (LIQ and #13)""" now = timezone.now() if user.has_perm("kfet.access_old_history"): return ( now - settings.KFET_HISTORY_LONG_DATE_LIMIT, settings.KFET_HISTORY_NO_DATE_LIMIT, ) if user.has_perm("kfet.is_team"): limit = now - settings.KFET_HISTORY_DATE_LIMIT return limit, limit # should not happen - future earliest date future = now + timedelta(days=1) return future, future @login_required def history_json(request): # Récupération des paramètres form = FilterHistoryForm(request.GET) if not form.is_valid(): return HttpResponseBadRequest() start = form.cleaned_data["start"] end = form.cleaned_data["end"] account = form.cleaned_data["account"] checkout = form.cleaned_data["checkout"] transfers_only = form.cleaned_data["transfers_only"] opes_only = form.cleaned_data["opes_only"] # Construction de la requête (sur les transferts) pour le prefetch transfer_queryset_prefetch = Transfer.objects.select_related( "from_acc", "to_acc", "canceled_by" ) # Le check sur les comptes est dans le prefetch pour les transferts if account: transfer_queryset_prefetch = transfer_queryset_prefetch.filter( Q(from_acc=account) | Q(to_acc=account) ) if not request.user.has_perm("kfet.is_team"): try: acc = request.user.profile.account_kfet transfer_queryset_prefetch = transfer_queryset_prefetch.filter( Q(from_acc=acc) | Q(to_acc=acc) ) except Account.DoesNotExist: return JsonResponse({}, status=403) transfer_prefetch = Prefetch( "transfers", queryset=transfer_queryset_prefetch, to_attr="filtered_transfers" ) # Construction de la requête (sur les opérations) pour le prefetch ope_queryset_prefetch = Operation.objects.select_related( "article", "canceled_by", "addcost_for" ) ope_prefetch = Prefetch("opes", queryset=ope_queryset_prefetch) # Construction de la requête principale opegroups = ( OperationGroup.objects.prefetch_related(ope_prefetch) .select_related("on_acc", "valid_by") .order_by("at") ) transfergroups = ( TransferGroup.objects.prefetch_related(transfer_prefetch) .select_related("valid_by") .order_by("at") ) # limite l'accès à l'historique plus vieux que settings.KFET_HISTORY_DATE_LIMIT limit_date = True # Application des filtres if start: opegroups = opegroups.filter(at__gte=start) transfergroups = transfergroups.filter(at__gte=start) if end: opegroups = opegroups.filter(at__lt=end) transfergroups = transfergroups.filter(at__lt=end) if checkout: opegroups = opegroups.filter(checkout=checkout) transfergroups = TransferGroup.objects.none() if transfers_only: opegroups = OperationGroup.objects.none() if opes_only: transfergroups = TransferGroup.objects.none() if account: opegroups = opegroups.filter(on_acc=account) if account.user == request.user: limit_date = False # pas de limite de date sur son propre historique # Un non-membre de l'équipe n'a que accès à son historique elif not request.user.has_perm("kfet.is_team"): # un non membre de la kfet doit avoir le champ account # pré-rempli, cette requête est douteuse return JsonResponse({}, status=403) if limit_date: # limiter l'accès à l'historique ancien pour confidentialité earliest_date, earliest_date_no_limit = get_history_limit(request.user) if ( account and account.trigramme in settings.KFET_HISTORY_NO_DATE_LIMIT_TRIGRAMMES ): earliest_date = earliest_date_no_limit opegroups = opegroups.filter(at__gte=earliest_date) transfergroups = transfergroups.filter(at__gte=earliest_date) # Construction de la réponse history_groups = [] for opegroup in opegroups: opegroup_dict = { "type": "operation", "id": opegroup.id, "amount": opegroup.amount, "at": opegroup.at, "checkout_id": opegroup.checkout_id, "is_cof": opegroup.is_cof, "comment": opegroup.comment, "entries": [], "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, "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["entries"].append(ope_dict) history_groups.append(opegroup_dict) for transfergroup in transfergroups: if transfergroup.filtered_transfers: transfergroup_dict = { "type": "transfer", "id": transfergroup.id, "at": transfergroup.at, "comment": transfergroup.comment, "entries": [], } if request.user.has_perm("kfet.is_team"): transfergroup_dict["valid_by__trigramme"] = ( transfergroup.valid_by and transfergroup.valid_by.trigramme or None ) for transfer in transfergroup.filtered_transfers: transfer_dict = { "id": transfer.id, "amount": transfer.amount, "canceled_at": transfer.canceled_at, "from_acc": transfer.from_acc.trigramme, "to_acc": transfer.to_acc.trigramme, } if request.user.has_perm("kfet.is_team"): transfer_dict["canceled_by__trigramme"] = ( transfer.canceled_by and transfer.canceled_by.trigramme or None ) transfergroup_dict["entries"].append(transfer_dict) history_groups.append(transfergroup_dict) history_groups.sort(key=lambda group: group["at"]) return JsonResponse({"groups": history_groups}) @teamkfet_required def kpsul_articles_data(request): articles = Article.objects.values( "id", "name", "price", "stock", "category_id", "category__name", "category__has_addcost", "category__has_reduction", ).filter(is_sold=True) return JsonResponse({"articles": list(articles)}) @teamkfet_required def history(request): # These limits are only useful for JS datepickers # They don't enforce anything and can be bypassed # Serious checks are done in history_json history_limit, history_no_limit = get_history_limit(request.user) history_no_limit_account_ids = Account.objects.filter( trigramme__in=settings.KFET_HISTORY_NO_DATE_LIMIT_TRIGRAMMES ).values_list("id", flat=True) format_date = lambda date: date.strftime("%Y-%m-%d %H:%M") data = { "filter_form": FilterHistoryForm(), "history_limit": format_date(history_limit), "history_no_limit_account_ids": history_no_limit_account_ids, "history_no_limit": format_date(history_no_limit), } return render(request, "kfet/history.html", data) # ----- # Settings views # ----- class SettingsList(TemplateView): template_name = "kfet/settings.html" config_list = permission_required("kfet.see_config")(SettingsList.as_view()) @method_decorator(kfet_password_auth, name="dispatch") class SettingsUpdate(SuccessMessageMixin, FormView): form_class = KFetConfigForm template_name = "kfet/settings_update.html" success_message = "Paramètres 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_config"): form.add_error( None, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) form.save() return super().form_valid(form) config_update = permission_required("kfet.change_config")(SettingsUpdate.as_view()) # ----- # Transfer views # ----- @method_decorator(teamkfet_required, name="dispatch") class TransferView(TemplateView): template_name = "kfet/transfers.html" @teamkfet_required def transfers_create(request): transfer_formset = TransferFormSet(queryset=Transfer.objects.none()) return render( request, "kfet/transfers_create.html", {"transfer_formset": transfer_formset} ) @teamkfet_required @kfet_password_auth def perform_transfers(request): data = {"errors": []} # Checking transfer_formset transfer_formset = TransferFormSet(request.POST) try: if not transfer_formset.is_valid(): for form_errors in transfer_formset.errors: for field, errors in form_errors.items(): if field == "amount": for error in errors: data["errors"].append({"code": "amount", "message": error}) else: # C'est compliqué de trouver le compte qui pose problème... acc_error = True if acc_error: data["errors"].append( { "code": "invalid_acc", "message": "L'un des comptes est invalide ou manquant", } ) return JsonResponse(data, status=400) except ValidationError: data["errors"].append( {"code": "invalid_request", "message": "Requête invalide"} ) return JsonResponse(data, status=400) transfers = transfer_formset.save(commit=False) # Initializing vars required_perms = set( ["kfet.add_transfer"] ) # Required perms to perform all transfers to_accounts_balances = defaultdict(int) # For balances of accounts for transfer in transfers: to_accounts_balances[transfer.from_acc] -= transfer.amount to_accounts_balances[transfer.to_acc] += transfer.amount negative_accounts = [] # Checking if ok on all accounts frozen = set() for account in to_accounts_balances: if account.is_frozen: frozen.add(account.trigramme) (perms, stop) = account.perms_to_perform_operation( amount=to_accounts_balances[account] ) required_perms |= perms if stop: negative_accounts.append(account.trigramme) if frozen: data["errors"].append( { "code": "frozen", "message": "Les comptes suivants sont gelés : {}".format( ", ".join(frozen) ), } ) if negative_accounts: data["errors"].append( { "code": "negative", "message": "Solde insuffisant pour les comptes suivants : {}".format( ", ".join(negative_accounts) ), } ) if data["errors"]: return JsonResponse(data, status=400) if not request.user.has_perms(required_perms): data["missing_perms"] = get_missing_perms(required_perms, request.user) return JsonResponse(data, status=403) # 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() 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() account.update_negative() # Saving transfer group transfergroup.save() # Saving all transfers with group for transfer in transfers: transfer.group = transfergroup transfer.save() return JsonResponse({}) @teamkfet_required @kfet_password_auth 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: data["errors"].append( {"code": "invalid_request", "message": "Requête invalide !"} ) 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"].append( { "code": "cancel_missing", "message": "Transferts inexistants : {}".format( ", ".join(map(str, transfers_notexisting)) ), } ) return JsonResponse(data, status=400) transfers_already_canceled = [] # Déjà annulés transfers = [] # Pas déjà annulés required_perms = set() cancel_duration = kfet_config.cancel_duration # Modifs à faire sur les balances des comptes to_accounts_balances = defaultdict(int) 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 if stop: negative_accounts.append(account.trigramme) if negative_accounts: data["errors"].append( { "code": "negative", "message": "Solde insuffisant pour les comptes suivants : {}".format( ", ".join(negative_accounts) ), } ) return JsonResponse(data, status=400) if not request.user.has_perms(required_perms): data["missing_perms"] = get_missing_perms(required_perms, request.user) 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() account.update_negative() transfers = ( Transfer.objects.values("id", "canceled_at", "canceled_by__trigramme") .filter(pk__in=transfers) .order_by("pk") ) data["canceled"] = list(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 @kfet_password_auth def inventory_create(request): articles = Article.objects.select_related("category").order_by( "-is_sold", "category__name", "name" ) initial = [] for article in articles: initial.append( { "is_sold": article.is_sold, "article": article.pk, "stock_old": article.stock, "name": article.name, "category": article.category_id, "category__name": article.category.name, "box_capacity": article.box_capacity or 0, } ) 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", extra_tags="permission-denied" ) 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}) class InventoryRead(DetailView): model = Inventory template_name = "kfet/inventory_read.html" context_object_name = "inventory" def get_context_data(self, **kwargs): context = super().get_context_data(**kwargs) output_field = DecimalField(max_digits=10, decimal_places=2, default=0) inventory_articles = ( InventoryArticle.objects.select_related("article", "article__category") .filter(inventory=self.object) .annotate( amount_error=ExpressionWrapper( F("stock_error") * F("article__price"), output_field=output_field ) ) .order_by("article__category__name", "article__name") ) context["inventoryarts"] = inventory_articles stats = inventory_articles.aggregate( new=ExpressionWrapper( Sum(F("stock_new") * F("article__price")), output_field=output_field ), error=Sum("amount_error"), old=ExpressionWrapper( Sum(F("stock_old") * F("article__price")), output_field=output_field ), ) context.update( { "total_amount_old": stats["old"], "total_amount_new": stats["new"], "total_amount_error": stats["error"], } ) return context class InventoryDelete(PermissionRequiredMixin, DeleteView): model = Inventory success_url = reverse_lazy("kfet.inventory") success_message = "Inventaire annulé avec succès !" permission_required = "kfet.delete_inventory" def get(self, request, *args, **kwargs): return redirect("kfet.inventory.read", self.kwargs.get(self.pk_url_kwarg)) def delete(self, request, *args, **kwargs): inv = self.get_object() # On met à jour les articles dont c'est le dernier inventaire # .get() ne marche pas avec OuterRef, donc on utilise .filter() avec [:1] update_subquery = InventoryArticle.objects.filter( inventory=inv, article=OuterRef("pk") ).values("stock_old")[:1] Article.objects.annotate(last_env=Max("inventories__at")).filter( last_env=inv.at ).update(stock=Subquery(update_subquery)) # On a tout mis à jour, on peut delete (avec un message) messages.success(request, self.success_message) return super().delete(request, *args, **kwargs) # ----- # 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().get_context_data(**kwargs) context["suppliers"] = Supplier.objects.order_by("name") return context @teamkfet_required @kfet_password_auth def order_create(request, pk): supplier = get_object_or_404(Supplier, pk=pk) articles = ( Article.objects.filter(suppliers=supplier.pk) .distinct() .select_related("category") .order_by("-is_sold", "category__name", "name") ) # Force hit to cache articles = list(articles) sales_q = ( Operation.objects.select_related("group") .filter(article__in=articles, canceled_at=None) .values("article") .annotate(nb=Sum("article_nb")) ) scale = WeekScale(last=True, n_steps=5, std_chunk=False) chunks = scale.chunkify_qs(sales_q, field="group__at") sales = [{d["article"]: d["nb"] for d in chunk} for chunk in chunks] initial = [] for article in articles: # Get sales for each 5 last weeks v_all = [chunk.get(article.pk, 0) for chunk in sales] # Take the 3 greatest (eg to avoid 2 weeks of vacations) v_3max = heapq.nlargest(3, v_all) # Get average and standard deviation v_moy = statistics.mean(v_3max) v_et = statistics.pstdev(v_3max, v_moy) # Expected sales for next week v_prev = v_moy + v_et # We want to have 1.5 * the expected sales in stock # (because sometimes some articles are not delivered) c_rec_tot = max(v_prev * 1.5 - article.stock, 0) # If ordered quantity is close enough to a level which can led to free # boxes, we increase it to this level. 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_all": v_all, "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), "is_sold": article.is_sold, } ) 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", extra_tags="permission-denied" ) 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 = form.cleaned_data["article"] 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: messages.error(request, "Corrigez les erreurs") else: formset = cls_formset(initial=initial) scale.label_fmt = "S-{rev_i}" return render( request, "kfet/order_create.html", {"supplier": supplier, "formset": formset, "scale": scale}, ) class OrderRead(DetailView): model = Order template_name = "kfet/order_read.html" context_object_name = "order" def get_context_data(self, **kwargs): context = super().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 @kfet_password_auth def order_to_inventory(request, pk): order = get_object_or_404(Order, pk=pk) if hasattr(order, "inventory"): raise Http404 supplier_prefetch = Prefetch( "article__supplierarticle_set", queryset=( SupplierArticle.objects.filter(supplier=order.supplier).order_by("-at") ), to_attr="supplier", ) order_articles = ( OrderArticle.objects.filter(order=order.pk) .select_related("article", "article__category") .prefetch_related(supplier_prefetch) .order_by("article__category__name", "article__name") ) initial = [] for order_article in order_articles: article = order_article.article initial.append( { "article": article.pk, "name": article.name, "category": article.category_id, "category__name": article.category.name, "quantity_ordered": order_article.quantity_ordered, "quantity_received": order_article.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", extra_tags="permission-denied" ) elif formset.is_valid(): with transaction.atomic(): inventory = Inventory.objects.create( order=order, by=request.user.profile.account_kfet ) new_supplierarticle = [] new_inventoryarticle = [] for form in formset: q_received = form.cleaned_data["quantity_received"] article = form.cleaned_data["article"] price_HT = form.cleaned_data["price_HT"] TVA = form.cleaned_data["TVA"] rights = form.cleaned_data["rights"] if any( ( form.initial["price_HT"] != price_HT, form.initial["TVA"] != TVA, form.initial["rights"] != rights, ) ): new_supplierarticle.append( SupplierArticle( supplier=order.supplier, article=article, price_HT=price_HT, TVA=TVA, rights=rights, ) ) ( OrderArticle.objects.filter( order=order, article=article ).update(quantity_received=q_received) ) new_inventoryarticle.append( InventoryArticle( 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() SupplierArticle.objects.bulk_create(new_supplierarticle) InventoryArticle.objects.bulk_create(new_inventoryarticle) 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, "order": order} ) @method_decorator(kfet_password_auth, name="dispatch") 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, ValidationError("Permission refusée", code="permission-denied") ) return self.form_invalid(form) # Updating return super().form_valid(form) # ========== # Statistics # ========== # --------------- # Vues génériques # --------------- # source : docs.djangoproject.com/fr/1.10/topics/class-based-views/mixins/ class JSONResponseMixin: """ A mixin that can be used to render a JSON response. """ def render_to_json_response(self, context, **response_kwargs): """ Returns a JSON response, transforming 'context' to make the payload. """ return JsonResponse(self.get_data(context), **response_kwargs) def get_data(self, context): """ Returns an object that will be serialized as JSON by json.dumps(). """ # Note: This is *EXTREMELY* naive; in reality, you'll need # to do much more complex handling to ensure that arbitrary # objects -- such as Django model instances or querysets # -- can be serialized as JSON. return context class JSONDetailView(JSONResponseMixin, BaseDetailView): """Returns a DetailView that renders a JSON.""" def render_to_response(self, context): return self.render_to_json_response(context) class SingleResumeStat(JSONDetailView): """ Génère l'interface de sélection pour les statistiques d'un compte/article. L'interface est constituée d'une série de boutons, qui récupèrent et graphent des statistiques du même type, sur le même objet mais avec des arguments différents. Attributs : - url_stat : URL où récupérer les statistiques - stats : liste de dictionnaires avec les clés suivantes : - label : texte du bouton - url_params : paramètres GET à rajouter à `url_stat` - default : si `True`, graphe à montrer par défaut On peut aussi définir `stats` dynamiquement, via la fonction `get_stats`. """ url_stat = None stats = [] def get_stats(self): return self.stats def get_context_data(self, **kwargs): # On n'hérite pas context = {} stats = [] # On peut avoir récupéré self.object via pk ou slug if self.pk_url_kwarg in self.kwargs: url_pk = getattr(self.object, self.pk_url_kwarg) else: url_pk = getattr(self.object, self.slug_url_kwarg) for stat_def in self.get_stats(): url_params_d = stat_def.get("url_params", {}) if len(url_params_d) > 0: url_params = "?{}".format(urlencode(url_params_d)) else: url_params = "" stats.append( { "label": stat_def["label"], "url": "{url}{params}".format( url=reverse(self.url_stat, args=[url_pk]), params=url_params ), "default": stat_def.get("default", False), } ) context["stats"] = stats return context class UserAccountMixin: """ Mixin qui vérifie que le compte traité par la vue est celui de l'utilisateur·ice actuel·le. Dans le cas contraire, renvoie un Http404. """ def get_object(self, *args, **kwargs): obj = super().get_object(*args, **kwargs) if self.request.user != obj.user: raise Http404 return obj class ScaleMixin(object): """Mixin pour utiliser les outils de `kfet.statistic`.""" def get_context_data(self, *args, **kwargs): # On n'hérite pas form = StatScaleForm(self.request.GET, prefix="scale") if not form.is_valid(): raise SuspiciousOperation( "Invalid StatScaleForm. Did someone tamper with the GET parameters ?" ) scale_name = form.cleaned_data.pop("name") scale_cls = SCALE_DICT.get(scale_name) self.scale = scale_cls(**form.cleaned_data) return {"labels": self.scale.get_labels()} # ----------------------- # Evolution Balance perso # ----------------------- @method_decorator(login_required, name="dispatch") class AccountStatBalanceList(UserAccountMixin, SingleResumeStat): """ Menu général pour l'historique de balance d'un compte """ model = Account slug_url_kwarg = "trigramme" slug_field = "trigramme" url_stat = "kfet.account.stat.balance" stats = [ {"label": "Tout le temps"}, {"label": "1 an", "url_params": {"last_days": 365}}, {"label": "6 mois", "url_params": {"last_days": 183}}, {"label": "3 mois", "url_params": {"last_days": 90}, "default": True}, {"label": "30 jours", "url_params": {"last_days": 30}}, ] @method_decorator(login_required, name="dispatch") class AccountStatBalance(UserAccountMixin, JSONDetailView): """ Statistiques (JSON) d'historique de balance d'un compte. Prend en compte les opérations et transferts sur la période donnée. """ model = Account slug_url_kwarg = "trigramme" slug_field = "trigramme" def get_changes_list(self, last_days=None, begin_date=None, end_date=None): account = self.object # prepare filters if last_days is not None: end_date = timezone.now() begin_date = end_date - timezone.timedelta(days=last_days) # prepare querysets # TODO: retirer les opgroup dont tous les op sont annulées opegroups = OperationGroup.objects.filter(on_acc=account) transfers = Transfer.objects.filter(canceled_at=None).select_related("group") recv_transfers = transfers.filter(to_acc=account) sent_transfers = transfers.filter(from_acc=account) # apply filters if begin_date is not None: opegroups = opegroups.filter(at__gte=begin_date) recv_transfers = recv_transfers.filter(group__at__gte=begin_date) sent_transfers = sent_transfers.filter(group__at__gte=begin_date) if end_date is not None: opegroups = opegroups.filter(at__lte=end_date) recv_transfers = recv_transfers.filter(group__at__lte=end_date) sent_transfers = sent_transfers.filter(group__at__lte=end_date) # On transforme tout ça en une liste de dictionnaires sous la forme # {'at': date, # 'amount': changement de la balance (négatif si diminue la balance, # positif si l'augmente), # 'label': text descriptif, # 'balance': état de la balance après l'action (0 pour le moment, # sera mis à jour lors d'une # autre passe) # } actions = [] actions.append( { "at": (begin_date or account.created_at).isoformat(), "amount": 0, "balance": 0, } ) actions.append( {"at": (end_date or timezone.now()).isoformat(), "amount": 0, "balance": 0} ) actions += ( [ {"at": ope_grp.at.isoformat(), "amount": ope_grp.amount, "balance": 0} for ope_grp in opegroups ] + [ {"at": tr.group.at.isoformat(), "amount": tr.amount, "balance": 0} for tr in recv_transfers ] + [ {"at": tr.group.at.isoformat(), "amount": -tr.amount, "balance": 0} for tr in sent_transfers ] ) # Maintenant on trie la liste des actions par ordre du plus récent # an plus ancien et on met à jour la balance if len(actions) > 1: actions = sorted(actions, key=lambda k: k["at"], reverse=True) actions[0]["balance"] = account.balance for i in range(len(actions) - 1): actions[i + 1]["balance"] = ( actions[i]["balance"] - actions[i + 1]["amount"] ) return actions def get_context_data(self, *args, **kwargs): context = {} form = AccountStatForm(self.request.GET) if not form.is_valid(): raise SuspiciousOperation( "Invalid AccountStatForm. Did someone tamper with the GET parameters ?" ) changes = self.get_changes_list(**form.cleaned_data) context["charts"] = [ {"color": "rgb(200, 20, 60)", "label": "Balance", "values": changes} ] context["is_time_chart"] = True if len(changes) > 0: context["min_date"] = changes[-1]["at"] context["max_date"] = changes[0]["at"] # TODO: offset return context # ------------------------ # Consommation personnelle # ------------------------ @method_decorator(login_required, name="dispatch") class AccountStatOperationList(UserAccountMixin, SingleResumeStat): """ Menu général pour l'historique de consommation d'un compte """ model = Account slug_url_kwarg = "trigramme" slug_field = "trigramme" url_stat = "kfet.account.stat.operation" def get_stats(self): scales_def = [ ( "Tout le temps", MonthScale, {"last": True, "begin": self.object.created_at.replace(tzinfo=None)}, False, ), ("1 an", MonthScale, {"last": True, "n_steps": 12}, False), ("3 mois", WeekScale, {"last": True, "n_steps": 13}, True), ("2 semaines", DayScale, {"last": True, "n_steps": 14}, False), ] return scale_url_params(scales_def) @method_decorator(login_required, name="dispatch") class AccountStatOperation(UserAccountMixin, ScaleMixin, JSONDetailView): """ Statistiques (JSON) de consommation (nb d'items achetés) d'un compte. """ model = Account slug_url_kwarg = "trigramme" slug_field = "trigramme" def get_context_data(self, *args, **kwargs): context = super().get_context_data(*args, **kwargs) operations = ( Operation.objects.filter( type=Operation.PURCHASE, group__on_acc=self.object, canceled_at=None ) .values("article_nb", "group__at") .order_by("group__at") ) # On compte les opérations nb_ventes = self.scale.chunkify_qs( operations, field="group__at", aggregate=Sum("article_nb") ) context["charts"] = [ { "color": "rgb(200, 20, 60)", "label": "NB items achetés", "values": nb_ventes, } ] return context # ------------------------ # Article Statistiques Last # ------------------------ @method_decorator(teamkfet_required, name="dispatch") class ArticleStatSalesList(SingleResumeStat): """ Menu pour les statistiques de vente d'un article. """ model = Article nb_default = 2 url_stat = "kfet.article.stat.sales" def get_stats(self): first_conso = ( Operation.objects.filter(article=self.object) .order_by("group__at") .values_list("group__at", flat=True) .first() ) if first_conso is None: # On le crée dans le passé au cas où first_conso = timezone.now() - timedelta(seconds=1) scales_def = [ ( "Tout le temps", MonthScale, {"last": True, "begin": first_conso.strftime("%Y-%m-%d %H:%M:%S")}, False, ), ("1 an", MonthScale, {"last": True, "n_steps": 12}, False), ("3 mois", WeekScale, {"last": True, "n_steps": 13}, True), ("2 semaines", DayScale, {"last": True, "n_steps": 14}, False), ] return scale_url_params(scales_def) @method_decorator(teamkfet_required, name="dispatch") class ArticleStatSales(ScaleMixin, JSONDetailView): """ Statistiques (JSON) de vente d'un article. Sépare LIQ et les comptes K-Fêt, et rajoute le total. """ model = Article context_object_name = "article" def get_context_data(self, *args, **kwargs): context = super().get_context_data(*args, **kwargs) scale = self.scale all_purchases = ( Operation.objects.filter( type=Operation.PURCHASE, article=self.object, canceled_at=None ) .values("group__at", "article_nb") .order_by("group__at") ) cof_accts = all_purchases.filter(group__on_acc__cofprofile__is_cof=True) noncof_accts = all_purchases.exclude(group__on_acc__cofprofile__is_cof=True) nb_cof = scale.chunkify_qs( cof_accts, field="group__at", aggregate=Sum("article_nb") ) nb_noncof = scale.chunkify_qs( noncof_accts, field="group__at", aggregate=Sum("article_nb") ) nb_ventes = [n1 + n2 for n1, n2 in zip(nb_cof, nb_noncof)] context["charts"] = [ { "color": "rgb(200, 20, 60)", "label": "Toutes consommations", "values": nb_ventes, }, {"color": "rgb(54, 162, 235)", "label": "Comptes K-Fêt", "values": nb_cof}, { "color": "rgb(255, 205, 86)", "label": "LIQ", "values": nb_noncof, }, ] return context # --- # Autocompletion views # --- class AccountCreateAutocompleteView(PermissionRequiredMixin, AutocompleteView): template_name = "kfet/search_results.html" permission_required = "kfet.is_team" search_composer = kfet_autocomplete class AccountSearchAutocompleteView(PermissionRequiredMixin, AutocompleteView): permission_required = "kfet.is_team" search_composer = kfet_account_only_autocomplete