import ast import heapq import statistics from collections import defaultdict from decimal import Decimal from urllib.parse import urlencode from django.contrib import messages from django.contrib.messages.views import SuccessMessageMixin from django.contrib.auth.decorators import login_required, permission_required from django.contrib.auth.models import User, Permission from django.core.exceptions import PermissionDenied from django.core.urlresolvers import reverse, reverse_lazy from django.forms import formset_factory from django.http import JsonResponse, Http404 from django.db import transaction from django.db.models import F, Sum, Prefetch, Count from django.shortcuts import render, get_object_or_404, redirect from django.utils import timezone from django.utils.decorators import method_decorator from django.views.generic import ListView, DetailView, FormView, TemplateView from django.views.generic.detail import BaseDetailView from django.views.generic.edit import CreateView, UpdateView from gestion.models import Profile from . import consumers from .auth.views import ( # noqa account_group, login_generic, AccountGroupCreate, AccountGroupUpdate, ) from .config import kfet_config from .decorators import teamkfet_required from .forms import ( AccountTriForm, AccountBalanceForm, AccountNoTriForm, UserForm, UserRestrictTeamForm, UserGroupForm, AccountForm, UserRestrictForm, AccountPwdForm, AccountNegativeForm, UserRestrictForm, AccountRestrictForm, CheckoutForm, CheckoutRestrictForm, CheckoutStatementCreateForm, CheckoutStatementUpdateForm, ArticleForm, ArticleRestrictForm, KPsulOperationGroupForm, KPsulAccountForm, KPsulCheckoutForm, KPsulOperationFormSet, AddcostForm, FilterHistoryForm, TransferFormSet, InventoryArticleForm, OrderArticleForm, OrderArticleToInventoryForm, CategoryForm, KFetConfigForm ) from .models import ( Account, Checkout, Article, AccountNegative, CheckoutStatement, Supplier, SupplierArticle, Inventory, InventoryArticle, Order, OrderArticle, Operation, OperationGroup, TransferGroup, Transfer, ArticleCategory ) from .statistic import ScaleMixin, last_stats_manifest, WeekScale 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('profile__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 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) 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): # 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') 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 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): 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:]) # ProfileForm - Prefill profile_initial = {'login_clipper': login_clipper} # Form créations if request: user_form = UserForm(request.POST, initial=user_initial) profile_form = ProfileForm(request.POST, initial=profile_initial) else: user_form = UserForm(initial=user_initial) profile_form = ProfileForm(initial=profile_initial) # Protection (read-only) des champs username et login_clipper account_form_set_readonly_fields(user_form, profile_form) 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: # 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 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'], }) # 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 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, }) # Account - Update @login_required def account_update(request, trigramme): 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) pwd_form = AccountPwdForm() 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 pwd_form = None if request.method == "POST": # Update attempt success = False 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) 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()): 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) # 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'] account.change_pwd(pwd) account.save() 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 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 Account.objects.get(pk=account.pk).balance >= 0 \ and not balance_offset_new: AccountNegative.objects.get(account=account).delete() success = True messages.success( request, 'Informations du compte %s mises à jour' % account.trigramme) # Modification de ses propres informations if request.user == account.user: missing_perm = False account.refresh_from_db() user_form = UserRestrictForm(request.POST, instance=account.user) account_form = AccountRestrictForm(request.POST, instance=account) pwd_form = AccountPwdForm(request.POST) 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 request.user.has_perm('kfet.is_team') \ and pwd_form.is_valid(): pwd = pwd_form.cleaned_data['pwd1'] account.change_pwd(pwd) account.save() messages.success( request, 'Votre mot de passe a été mis à jour') if missing_perm: messages.error(request, 'Permission refusée') if success: 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", { 'account': account, 'account_form': account_form, 'cof_form': cof_form, 'user_form': user_form, 'group_form': group_form, 'negative_form': negative_form, 'pwd_form': pwd_form, }) class AccountNegativeList(ListView): queryset = ( AccountNegative.objects .select_related('account', 'account__profile__user') .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) real_balances = (neg.account.real_balance for neg in self.object_list) context['negatives_sum'] = sum(real_balances) 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 if not self.request.user.has_perm('kfet.add_checkout'): 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 if not self.request.user.has_perm('kfet.change_checkout'): form.add_error(None, 'Permission refusée') return self.form_invalid(form) # Updating return super(CheckoutUpdate, self).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) 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(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) # 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(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) # ----- # 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 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, 'Permission refusée') return self.form_invalid(form) # Updating return super(CategoryUpdate, self).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' # 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() 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 = 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): pk = request.POST.get('pk', 0) if not pk: pk = 0 checkout = get_object_or_404(Checkout, pk=pk) data = { 'id': checkout.id, 'name': checkout.name, 'balance': checkout.balance, 'valid_from': checkout.valid_from, 'valid_to': checkout.valid_to } try: last_statement = ( CheckoutStatement .objects .select_related('by', 'by__profile', 'by__profile__user') .filter(checkout=checkout) .latest('at') ) data['last_statement_balance'] = last_statement.balance_new data['last_statement_at'] = last_statement.at data['last_statement_by_trigramme'] = last_statement.by.trigramme data['last_statement_by_last_name'] = \ last_statement.by.profile.user.last_name data['last_statement_by_first_name'] = \ last_statement.by.profile.user.first_name except CheckoutStatement.DoesNotExist: pass 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 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, } } consumers.KPsul.group_send('kfet.kpsul', data) return JsonResponse(data) 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 = 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 != 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.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 operationgroup.on_acc.is_cash: to_checkout_balance += -operation.amount if operationgroup.on_acc.is_cof: 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 operationgroup.on_acc.is_cash: data['errors']['account'] = '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 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 if data['errors']: 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 on_acc = operationgroup.on_acc 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() 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': ( 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['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) @teamkfet_required 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[]', [])))) 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)) 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 = kfet_config.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 # 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 stop_all = stop_all or stop if stop: negative_accounts.append(account.trigramme) 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(): (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]) # 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) 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', 'addcost_for', 'article') # Construction de la requête principale opegroups = (OperationGroup.objects .prefetch_related(Prefetch('opes', queryset = queryset_prefetch)) .select_related('on_acc', 'valid_by') .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, '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', 'category__has_addcost') .filter(is_sold=True)) return JsonResponse({ 'articles': list(articles) }) @teamkfet_required def history(request): data = { 'filter_form': FilterHistoryForm(), } 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()) 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, 'Permission refusée') return self.form_invalid(form) form.save() return super().form_valid(form) config_update = ( permission_required('kfet.change_config')(SettingsUpdate.as_view()) ) # ----- # Transfer views # ----- @teamkfet_required def transfers(request): transfers_pre = Prefetch( 'transfers', queryset=( Transfer.objects .select_related('from_acc', 'to_acc') ), ) transfergroups = ( TransferGroup.objects .select_related('valid_by') .prefetch_related(transfers_pre) .order_by('-at') ) return render(request, 'kfet/transfers.html', { 'transfergroups': transfergroups, }) @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 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 required_perms = set(['kfet.add_transfer']) # Required perms to perform all transfers 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 = [] # 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) 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) # 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() 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() # Saving transfer group 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 = kfet_config.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) 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, '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') 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(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) .distinct() .select_related('category') .order_by('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), }) 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 = 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(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 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') 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, }) 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) # ========== # Statistics # ========== # --------------- # Vues génériques # --------------- # source : docs.djangoproject.com/fr/1.10/topics/class-based-views/mixins/ class JSONResponseMixin(object): """ 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 PkUrlMixin(object): def get_object(self, *args, **kwargs): get_by = self.kwargs.get(self.pk_url_kwarg) return get_object_or_404(self.model, **{self.pk_url_kwarg: get_by}) class SingleResumeStat(JSONDetailView): """Manifest for a kind of a stat about an object. Returns JSON whose payload is an array containing descriptions of a stat: url to retrieve data, label, ... """ id_prefix = '' nb_default = 0 stats = [] url_stat = None def get_context_data(self, **kwargs): # On n'hérite pas object_id = self.object.id context = {} stats = [] prefix = '{}_{}'.format(self.id_prefix, object_id) for i, stat_def in enumerate(self.stats): url_pk = getattr(self.object, self.pk_url_kwarg) 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'], 'btn': 'btn_{}_{}'.format(prefix, i), 'url': '{url}{params}'.format( url=reverse(self.url_stat, args=[url_pk]), params=url_params, ), }) context['id_prefix'] = prefix context['content_id'] = "content_%s" % prefix context['stats'] = stats context['default_stat'] = self.nb_default context['object_id'] = object_id return context # ----------------------- # Evolution Balance perso # ----------------------- ID_PREFIX_ACC_BALANCE = "balance_acc" class AccountStatBalanceList(PkUrlMixin, SingleResumeStat): """Manifest for balance stats of an account.""" model = Account context_object_name = 'account' pk_url_kwarg = 'trigramme' url_stat = 'kfet.account.stat.balance' id_prefix = ID_PREFIX_ACC_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}, }, { 'label': '30 jours', 'url_params': {'last_days': 30}, }, ] nb_default = 0 def get_object(self, *args, **kwargs): obj = super().get_object(*args, **kwargs) if self.request.user != obj.user: raise PermissionDenied return obj @method_decorator(login_required) def dispatch(self, *args, **kwargs): return super().dispatch(*args, **kwargs) class AccountStatBalance(PkUrlMixin, JSONDetailView): """Datasets of balance of an account. Operations and Transfers are taken into account. """ model = Account pk_url_kwarg = 'trigramme' context_object_name = 'account' 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 = {} last_days = self.request.GET.get('last_days', None) if last_days is not None: last_days = int(last_days) begin_date = self.request.GET.get('begin_date', None) end_date = self.request.GET.get('end_date', None) changes = self.get_changes_list( last_days=last_days, begin_date=begin_date, end_date=end_date, ) 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 def get_object(self, *args, **kwargs): obj = super().get_object(*args, **kwargs) if self.request.user != obj.user: raise PermissionDenied return obj @method_decorator(login_required) def dispatch(self, *args, **kwargs): return super(AccountStatBalance, self).dispatch(*args, **kwargs) # ------------------------ # Consommation personnelle # ------------------------ ID_PREFIX_ACC_LAST = "last_acc" ID_PREFIX_ACC_LAST_DAYS = "last_days_acc" ID_PREFIX_ACC_LAST_WEEKS = "last_weeks_acc" ID_PREFIX_ACC_LAST_MONTHS = "last_months_acc" class AccountStatOperationList(PkUrlMixin, SingleResumeStat): """Manifest for operations stats of an account.""" model = Account context_object_name = 'account' pk_url_kwarg = 'trigramme' id_prefix = ID_PREFIX_ACC_LAST nb_default = 2 stats = last_stats_manifest(types=[Operation.PURCHASE]) url_stat = 'kfet.account.stat.operation' def get_object(self, *args, **kwargs): obj = super().get_object(*args, **kwargs) if self.request.user != obj.user: raise PermissionDenied return obj @method_decorator(login_required) def dispatch(self, *args, **kwargs): return super().dispatch(*args, **kwargs) class AccountStatOperation(ScaleMixin, PkUrlMixin, JSONDetailView): """Datasets of operations of an account.""" model = Account pk_url_kwarg = 'trigramme' context_object_name = 'account' id_prefix = "" def get_operations(self, scale, types=None): # On selectionne les opérations qui correspondent # à l'article en question et qui ne sont pas annulées # puis on choisi pour chaques intervalle les opérations # effectuées dans ces intervalles de temps all_operations = ( Operation.objects .filter(group__on_acc=self.object, canceled_at=None) .values('article_nb', 'group__at') .order_by('group__at') ) if types is not None: all_operations = all_operations.filter(type__in=types) chunks = scale.get_by_chunks( all_operations, field_db='group__at', field_callback=(lambda d: d['group__at']), ) return chunks def get_context_data(self, *args, **kwargs): old_ctx = super().get_context_data(*args, **kwargs) context = {'labels': old_ctx['labels']} scale = self.scale types = self.request.GET.get('types', None) if types is not None: types = ast.literal_eval(types) operations = self.get_operations(types=types, scale=scale) # On compte les opérations nb_ventes = [] for chunk in operations: ventes = sum(ope['article_nb'] for ope in chunk) nb_ventes.append(ventes) context['charts'] = [{"color": "rgb(200, 20, 60)", "label": "NB items achetés", "values": nb_ventes}] return context def get_object(self, *args, **kwargs): obj = super().get_object(*args, **kwargs) if self.request.user != obj.user: raise PermissionDenied return obj @method_decorator(login_required) def dispatch(self, *args, **kwargs): return super().dispatch(*args, **kwargs) # ------------------------ # Article Satistiques Last # ------------------------ ID_PREFIX_ART_LAST = "last_art" ID_PREFIX_ART_LAST_DAYS = "last_days_art" ID_PREFIX_ART_LAST_WEEKS = "last_weeks_art" ID_PREFIX_ART_LAST_MONTHS = "last_months_art" class ArticleStatSalesList(SingleResumeStat): """Manifest for sales stats of an article.""" model = Article context_object_name = 'article' id_prefix = ID_PREFIX_ART_LAST nb_default = 2 url_stat = 'kfet.article.stat.sales' stats = last_stats_manifest() @method_decorator(teamkfet_required) def dispatch(self, *args, **kwargs): return super().dispatch(*args, **kwargs) class ArticleStatSales(ScaleMixin, JSONDetailView): """Datasets of sales of an article.""" model = Article context_object_name = 'article' def get_context_data(self, *args, **kwargs): old_ctx = super().get_context_data(*args, **kwargs) context = {'labels': old_ctx['labels']} 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') ) liq_only = all_purchases.filter(group__on_acc__trigramme='LIQ') liq_exclude = all_purchases.exclude(group__on_acc__trigramme='LIQ') chunks_liq = scale.get_by_chunks( liq_only, field_db='group__at', field_callback=lambda d: d['group__at'], ) chunks_no_liq = scale.get_by_chunks( liq_exclude, field_db='group__at', field_callback=lambda d: d['group__at'], ) # On compte les opérations nb_ventes = [] nb_accounts = [] nb_liq = [] for chunk_liq, chunk_no_liq in zip(chunks_liq, chunks_no_liq): sum_accounts = sum(ope['article_nb'] for ope in chunk_no_liq) sum_liq = sum(ope['article_nb'] for ope in chunk_liq) nb_ventes.append(sum_accounts + sum_liq) nb_accounts.append(sum_accounts) nb_liq.append(sum_liq) context['charts'] = [{"color": "rgb(200, 20, 60)", "label": "Toutes consommations", "values": nb_ventes}, {"color": "rgb(54, 162, 235)", "label": "LIQ", "values": nb_liq}, {"color": "rgb(255, 205, 86)", "label": "Comptes K-Fêt", "values": nb_accounts}] return context @method_decorator(teamkfet_required) def dispatch(self, *args, **kwargs): return super().dispatch(*args, **kwargs)