nk20/apps/note/views.py

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# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
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# SPDX-License-Identifier: GPL-3.0-or-later
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import json
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from django.conf import settings
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from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.contenttypes.models import ContentType
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from django.utils.translation import gettext_lazy as _
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from django.views.generic import CreateView, UpdateView
from django_tables2 import SingleTableView
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from django.urls import reverse_lazy
from note_kfet.inputs import AmountInput
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from permission.backends import PermissionBackend
from permission.views import ProtectQuerysetMixin
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from .forms import TransactionTemplateForm
from .models import Transaction, TransactionTemplate, RecurrentTransaction, NoteSpecial
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from .models.transactions import SpecialTransaction
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from .tables import HistoryTable, ButtonTable
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class TransactionCreateView(ProtectQuerysetMixin, LoginRequiredMixin, SingleTableView):
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"""
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View for the creation of Transaction between two note which are not :models:`transactions.RecurrentTransaction`.
e.g. for donation/transfer between people and clubs or for credit/debit with :models:`note.NoteSpecial`
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"""
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template_name = "note/transaction_form.html"
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model = Transaction
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# Transaction history table
table_class = HistoryTable
def get_queryset(self, **kwargs):
return super().get_queryset(**kwargs).order_by("-id").all()[:20]
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def get_context_data(self, **kwargs):
"""
Add some context variables in template such as page title
"""
context = super().get_context_data(**kwargs)
context['title'] = _('Transfer money')
context['amount_widget'] = AmountInput(attrs={"id": "amount"})
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context['polymorphic_ctype'] = ContentType.objects.get_for_model(Transaction).pk
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context['special_polymorphic_ctype'] = ContentType.objects.get_for_model(SpecialTransaction).pk
context['special_types'] = NoteSpecial.objects\
.filter(PermissionBackend.filter_queryset(self.request.user, NoteSpecial, "view"))\
.order_by("special_type").all()
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# Add a shortcut for entry page for open activities
if "activity" in settings.INSTALLED_APPS:
from activity.models import Activity
context["activities_open"] = Activity.objects.filter(open=True).filter(
PermissionBackend.filter_queryset(self.request.user, Activity, "view")).filter(
PermissionBackend.filter_queryset(self.request.user, Activity, "change")).all()
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return context
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class TransactionTemplateCreateView(ProtectQuerysetMixin, LoginRequiredMixin, CreateView):
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"""
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Create Transaction template
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"""
model = TransactionTemplate
form_class = TransactionTemplateForm
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success_url = reverse_lazy('note:template_list')
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class TransactionTemplateListView(ProtectQuerysetMixin, LoginRequiredMixin, SingleTableView):
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"""
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List Transaction templates
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"""
model = TransactionTemplate
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table_class = ButtonTable
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class TransactionTemplateUpdateView(ProtectQuerysetMixin, LoginRequiredMixin, UpdateView):
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"""
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Update Transaction template
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"""
model = TransactionTemplate
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form_class = TransactionTemplateForm
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success_url = reverse_lazy('note:template_list')
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def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
if "logs" in settings.INSTALLED_APPS:
from logs.models import Changelog
update_logs = Changelog.objects.filter(
model=ContentType.objects.get_for_model(TransactionTemplate),
instance_pk=self.object.pk,
action="edit",
)
price_history = []
for log in update_logs.all():
old_dict = json.loads(log.previous)
new_dict = json.loads(log.data)
old_price = old_dict["amount"]
new_price = new_dict["amount"]
if old_price != new_price:
price_history.append(dict(price=old_price, time=log.timestamp))
price_history.append(dict(price=self.object.amount, time=None))
price_history.reverse()
context["price_history"] = price_history
return context
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class ConsoView(ProtectQuerysetMixin, LoginRequiredMixin, SingleTableView):
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"""
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The Magic View that make people pay their beer and burgers.
(Most of the magic happens in the dark world of Javascript see consos.js)
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"""
model = Transaction
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template_name = "note/conso_form.html"
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# Transaction history table
table_class = HistoryTable
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def get_queryset(self, **kwargs):
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return super().get_queryset(**kwargs).order_by("-id").all()[:20]
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def get_context_data(self, **kwargs):
"""
Add some context variables in template such as page title
"""
context = super().get_context_data(**kwargs)
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from django.db.models import Count
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buttons = TransactionTemplate.objects.filter(
PermissionBackend().filter_queryset(self.request.user, TransactionTemplate, "view")
).filter(display=True).annotate(clicks=Count('recurrenttransaction')).order_by('category__name', 'name')
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context['transaction_templates'] = buttons
context['most_used'] = buttons.order_by('-clicks', 'name')[:10]
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context['title'] = _("Consumptions")
context['polymorphic_ctype'] = ContentType.objects.get_for_model(RecurrentTransaction).pk
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# select2 compatibility
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context['no_cache'] = True
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return context