nk20/apps/treasury/views.py

281 lines
9.5 KiB
Python

# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later
import os
import shutil
import subprocess
from tempfile import mkdtemp
from crispy_forms.helper import FormHelper
from django.contrib.auth.mixins import LoginRequiredMixin
from django.core.exceptions import ValidationError
from django.db.models import Q
from django.http import HttpResponse
from django.shortcuts import redirect
from django.template.loader import render_to_string
from django.urls import reverse_lazy
from django.views.generic import CreateView, UpdateView
from django.views.generic.base import View, TemplateView
from django_tables2 import SingleTableView
from note.models import SpecialTransaction, NoteSpecial
from note_kfet.settings.base import BASE_DIR
from .forms import InvoiceForm, ProductFormSet, ProductFormSetHelper, RemittanceForm, LinkTransactionToRemittanceForm
from .models import Invoice, Product, Remittance, SpecialTransactionProxy, RemittanceType
from .tables import InvoiceTable, RemittanceTable, SpecialTransactionTable
class InvoiceCreateView(LoginRequiredMixin, CreateView):
"""
Create Invoice
"""
model = Invoice
form_class = InvoiceForm
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
form = context['form']
form.helper = FormHelper()
form.helper.form_tag = False
form_set = ProductFormSet(instance=form.instance)
context['formset'] = form_set
context['helper'] = ProductFormSetHelper()
context['no_cache'] = True
return context
def form_valid(self, form):
ret = super().form_valid(form)
kwargs = {}
for key in self.request.POST:
value = self.request.POST[key]
if key.endswith("amount") and value:
kwargs[key] = str(int(100 * float(value)))
elif value:
kwargs[key] = value
formset = ProductFormSet(kwargs, instance=form.instance)
if formset.is_valid():
for f in formset:
if f.is_valid() and f.instance.designation:
f.save()
f.instance.save()
else:
f.instance = None
return ret
def get_success_url(self):
return reverse_lazy('treasury:invoice_list')
class InvoiceListView(LoginRequiredMixin, SingleTableView):
"""
List existing Invoices
"""
model = Invoice
table_class = InvoiceTable
class InvoiceUpdateView(LoginRequiredMixin, UpdateView):
"""
Create Invoice
"""
model = Invoice
form_class = InvoiceForm
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
form = context['form']
form.helper = FormHelper()
form.helper.form_tag = False
form.fields['date'].initial = form.instance.date
form_set = ProductFormSet(instance=form.instance)
context['formset'] = form_set
context['helper'] = ProductFormSetHelper()
context['no_cache'] = True
return context
def form_valid(self, form):
ret = super().form_valid(form)
kwargs = {}
for key in self.request.POST:
value = self.request.POST[key]
if key.endswith("amount") and value:
kwargs[key] = str(int(100 * float(value)))
elif value:
kwargs[key] = value
formset = ProductFormSet(kwargs, instance=form.instance)
saved = []
if formset.is_valid():
for f in formset:
if f.is_valid() and f.instance.designation:
f.save()
f.instance.save()
saved.append(f.instance.pk)
else:
f.instance = None
Product.objects.filter(~Q(pk__in=saved), invoice=form.instance).delete()
return ret
def get_success_url(self):
return reverse_lazy('treasury:invoice_list')
class InvoiceRenderView(LoginRequiredMixin, View):
"""
Render Invoice as generated PDF
"""
def get(self, request, **kwargs):
pk = kwargs["pk"]
invoice = Invoice.objects.get(pk=pk)
products = Product.objects.filter(invoice=invoice).all()
invoice.place = "Cachan"
invoice.my_name = "BDE ENS Cachan"
invoice.my_address_street = "61 avenue du Président Wilson"
invoice.my_city = "94230 Cachan"
invoice.bank_code = 30003
invoice.desk_code = 3894
invoice.account_number = 37280662
invoice.rib_key = 14
invoice.bic = "SOGEFRPP"
invoice.description = invoice.description.replace("\r", "").replace("\n", "\\\\ ")
invoice.address = invoice.address.replace("\r", "").replace("\n", "\\\\ ")
tex = render_to_string("treasury/invoice_sample.tex", dict(obj=invoice, products=products))
try:
os.mkdir(BASE_DIR + "/tmp")
except FileExistsError:
pass
tmp_dir = mkdtemp(prefix=BASE_DIR + "/tmp/")
try:
with open("{}/invoice-{:d}.tex".format(tmp_dir, pk), "wb") as f:
f.write(tex.encode("UTF-8"))
del tex
for _ in range(2):
error = subprocess.Popen(
["pdflatex", "invoice-{}.tex".format(pk)],
cwd=tmp_dir,
).wait()
if error:
raise IOError("An error attempted while generating a invoice (code=" + str(error) + ")")
pdf = open("{}/invoice-{}.pdf".format(tmp_dir, pk), 'rb').read()
response = HttpResponse(pdf, content_type="application/pdf")
response['Content-Disposition'] = "inline;filename=invoice-{:d}.pdf".format(pk)
except IOError as e:
raise e
finally:
shutil.rmtree(tmp_dir)
return response
class RemittanceCreateView(LoginRequiredMixin, CreateView):
"""
Create Remittance
"""
model = Remittance
form_class = RemittanceForm
def get_success_url(self):
return reverse_lazy('treasury:remittance_list')
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["table"] = RemittanceTable(data=Remittance.objects.all())
ctx["special_transactions"] = SpecialTransactionTable(data=SpecialTransaction.objects.none())
return ctx
class RemittanceListView(LoginRequiredMixin, TemplateView):
"""
List existing Remittances
"""
template_name = "treasury/remittance_list.html"
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["opened_remittances"] = RemittanceTable(data=Remittance.objects.filter(closed=False).all())
ctx["closed_remittances"] = RemittanceTable(data=Remittance.objects.filter(closed=True).reverse().all())
ctx["special_transactions_no_remittance"] = SpecialTransactionTable(
data=SpecialTransaction.objects.filter(source__in=NoteSpecial.objects.filter(~Q(remittancetype=None)),
specialtransactionproxy__remittance=None).all(),
exclude=('remittance_remove', ))
ctx["special_transactions_with_remittance"] = SpecialTransactionTable(
data=SpecialTransaction.objects.filter(source__in=NoteSpecial.objects.filter(~Q(remittancetype=None)),
specialtransactionproxy__remittance__closed=False).all(),
exclude=('remittance_add', ))
return ctx
class RemittanceUpdateView(LoginRequiredMixin, UpdateView):
"""
Update Remittance
"""
model = Remittance
form_class = RemittanceForm
def get_success_url(self):
return reverse_lazy('treasury:remittance_list')
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx["table"] = RemittanceTable(data=Remittance.objects.all())
data = SpecialTransaction.objects.filter(specialtransactionproxy__remittance=self.object).all()
ctx["special_transactions"] = SpecialTransactionTable(
data=data,
exclude=('remittance_add', 'remittance_remove', ) if self.object.closed else ('remittance_add', ))
return ctx
class LinkTransactionToRemittanceView(LoginRequiredMixin, UpdateView):
model = SpecialTransactionProxy
form_class = LinkTransactionToRemittanceForm
def get_success_url(self):
return reverse_lazy('treasury:remittance_list')
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
form = ctx["form"]
form.fields["last_name"].initial = self.object.transaction.last_name
form.fields["first_name"].initial = self.object.transaction.first_name
form.fields["bank"].initial = self.object.transaction.bank
form.fields["amount"].initial = self.object.transaction.amount
form.fields["remittance"].queryset = form.fields["remittance"] \
.queryset.filter(remittance_type__note=self.object.transaction.source)
return ctx
class UnlinkTransactionToRemittanceView(LoginRequiredMixin, View):
def get(self, *args, **kwargs):
pk = kwargs["pk"]
transaction = SpecialTransactionProxy.objects.get(pk=pk)
if transaction.remittance and transaction.remittance.closed:
raise ValidationError("Remittance is already closed.")
transaction.remittance = None
transaction.save()
return redirect('treasury:remittance_list')