nk20/apps/note/views.py

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# Copyright (C) 2018-2021 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
from django.core.exceptions import PermissionDenied
from django.db.models import Q, F
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from django.utils.translation import gettext_lazy as _
from django.views.generic import CreateView, UpdateView, DetailView
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from django.urls import reverse_lazy
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from django_tables2 import SingleTableView
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from activity.models import Entry
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from permission.backends import PermissionBackend
from permission.views import ProtectQuerysetMixin
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from note_kfet.inputs import AmountInput
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from .forms import TransactionTemplateForm, SearchTransactionForm
from .models import TemplateCategory, Transaction, TransactionTemplate, RecurrentTransaction, NoteSpecial, Note
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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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# SingleTableView creates `context["table"]` we will load it with transaction history
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model = Transaction
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# Transaction history table
table_class = HistoryTable
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extra_context = {"title": _("Transfer money")}
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def get_queryset(self, **kwargs):
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# retrieves only Transaction that user has the right to see.
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return Transaction.objects.filter(
PermissionBackend.filter_queryset(self.request, Transaction, "view")
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).order_by("-created_at").all()[:20]
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def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
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, 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
activities_open = Activity.objects.filter(open=True, activity_type__manage_entries=True).filter(
PermissionBackend.filter_queryset(self.request, Activity, "view")).distinct().all()
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context["activities_open"] = [a for a in activities_open
if PermissionBackend.check_perm(self.request,
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"activity.add_entry",
Entry(activity=a,
note=self.request.user.note, ))]
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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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extra_context = {"title": _("Create new button")}
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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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extra_context = {"title": _("Search button")}
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def get_queryset(self, **kwargs):
"""
Filter the user list with the given pattern.
"""
qs = super().get_queryset().distinct()
if "search" in self.request.GET:
pattern = self.request.GET["search"]
qs = qs.filter(
Q(name__iregex=pattern)
| Q(destination__club__name__iregex=pattern)
| Q(category__name__iregex=pattern)
| Q(description__iregex=pattern)
)
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qs = qs.order_by('-display', 'category__name', 'destination__club__name', 'name')
return qs
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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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extra_context = {"title": _("Update button")}
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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)
if "amount" not in old_dict:
# The amount price of the button was not modified in this changelog
continue
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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.
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(Most of the magic happens in the dark world of Javascript see `static/note/js/consos.js`)
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"""
model = Transaction
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template_name = "note/conso_form.html"
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extra_context = {"title": _("Consumptions")}
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# Transaction history table
table_class = HistoryTable
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def dispatch(self, request, *args, **kwargs):
# Check that the user is authenticated
if not request.user.is_authenticated:
return self.handle_no_permission()
templates = TransactionTemplate.objects.filter(
PermissionBackend().filter_queryset(self.request, TransactionTemplate, "view")
)
if not templates.exists():
raise PermissionDenied(_("You can't see any button."))
return super().dispatch(request, *args, **kwargs)
def get_queryset(self, **kwargs):
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"""
restrict to the transaction history the user can see.
"""
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return Transaction.objects.filter(
PermissionBackend.filter_queryset(self.request, Transaction, "view")
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).order_by("-created_at").all()[:20]
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def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
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categories = TemplateCategory.objects.order_by('name').all()
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# for each category, find which transaction templates the user can see.
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for category in categories:
category.templates_filtered = category.templates.filter(
PermissionBackend().filter_queryset(self.request, TransactionTemplate, "view")
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).filter(display=True).order_by('name').all()
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context['categories'] = [cat for cat in categories if cat.templates_filtered]
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# some transactiontemplate are put forward to find them easily
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context['highlighted'] = TransactionTemplate.objects.filter(highlighted=True).filter(
PermissionBackend().filter_queryset(self.request, TransactionTemplate, "view")
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).order_by('name').all()
context['polymorphic_ctype'] = ContentType.objects.get_for_model(RecurrentTransaction).pk
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if "search" in self.request.GET and self.request.GET["search"]:
pattern = self.request.GET["search"]
context['search_results'] = TransactionTemplate.objects.filter(
name__iregex=pattern
).filter(
PermissionBackend.filter_queryset(self.request, TransactionTemplate, "view")
).filter(display=True).order_by('name').all()
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return context
class TransactionSearchView(ProtectQuerysetMixin, LoginRequiredMixin, DetailView):
model = Note
context_object_name = "note"
template_name = "note/search_transactions.html"
extra_context = {"title": _("Search transactions")}
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
form = SearchTransactionForm(data=self.request.GET if self.request.GET else None)
context["form"] = form
form.full_clean()
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data = form.cleaned_data if form.is_valid() else {}
transactions = Transaction.objects.annotate(total_amount=F("quantity") * F("amount")).filter(
PermissionBackend.filter_queryset(self.request, Transaction, "view"))\
.filter(Q(source=self.object) | Q(destination=self.object)).order_by('-created_at')
if "source" in data and data["source"]:
transactions = transactions.filter(source_id=data["source"].note_id)
if "destination" in data and data["destination"]:
transactions = transactions.filter(destination_id=data["destination"].note_id)
if "type" in data and data["type"]:
transactions = transactions.filter(polymorphic_ctype__in=data["type"])
if "reason" in data and data["reason"]:
transactions = transactions.filter(reason__iregex=data["reason"])
if "valid" in data and data["valid"]:
transactions = transactions.filter(valid=data["valid"])
if "amount_gte" in data and data["amount_gte"]:
transactions = transactions.filter(total_amount__gte=data["amount_gte"])
if "amount_lte" in data and data["amount_lte"]:
transactions = transactions.filter(total_amount__lte=data["amount_lte"])
if "created_after" in data and data["created_after"]:
transactions = transactions.filter(created_at__gte=data["created_after"])
if "created_before" in data and data["created_before"]:
transactions = transactions.filter(created_at__lte=data["created_before"])
table = HistoryTable(transactions)
table.paginate(per_page=100, page=self.request.GET.get("page", 1))
context["table"] = table
return context