Sith/core/views/user.py

# -*- coding:utf-8 -*
#
# Copyright 2016,2017
# - Skia <skia@libskia.so>
# - Sli <antoine@bartuccio.fr>
#
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
# http://ae.utbm.fr.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License a published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#
#

# This file contains all the views that concern the user model
from django.shortcuts import render, redirect, get_object_or_404
from django.contrib.auth import views
from django.contrib.auth.forms import PasswordChangeForm
from django.utils.translation import gettext as _
from django.urls import reverse
from django.core.exceptions import PermissionDenied, ValidationError
from django.http import Http404, HttpResponse
from django.views.generic.edit import UpdateView
from django.views.generic import (
    ListView,
    DetailView,
    TemplateView,
    CreateView,
    DeleteView,
)
from django.forms.models import modelform_factory
from django.forms import CheckboxSelectMultiple
from django.urls import reverse_lazy
from django.template.response import TemplateResponse
from django.conf import settings
from django.views.generic.dates import YearMixin, MonthMixin

from datetime import timedelta, date
import logging
from api.views.sas import all_pictures_of_user

from core.views import (
    CanViewMixin,
    CanEditMixin,
    CanEditPropMixin,
    UserIsLoggedMixin,
    TabedViewMixin,
    QuickNotifMixin,
)
from core.views.forms import (
    RegisteringForm,
    UserProfileForm,
    LoginForm,
    UserGodfathersForm,
    GiftForm,
)
from core.models import User, SithFile, Preferences, Gift
from subscription.models import Subscription
from counter.views import StudentCardForm
from trombi.views import UserTrombiForm


class SithLoginView(views.LoginView):
    """
    The login View
    """

    template_name = "core/login.jinja"
    authentication_form = LoginForm
    form_class = PasswordChangeForm


class SithPasswordChangeView(views.PasswordChangeView):
    """
    Allows a user to change its password
    """

    template_name = "core/password_change.jinja"
    success_url = reverse_lazy("core:password_change_done")


class SithPasswordChangeDoneView(views.PasswordChangeDoneView):
    """
    Allows a user to change its password
    """

    template_name = "core/password_change_done.jinja"


def logout(request):
    """
    The logout view
    """
    return views.logout_then_login(request)


def password_root_change(request, user_id):
    """
    Allows a root user to change someone's password
    """
    if not request.user.is_root:
        raise PermissionDenied
    user = User.objects.filter(id=user_id).first()
    if not user:
        raise Http404("User not found")
    if request.method == "POST":
        form = views.SetPasswordForm(user=user, data=request.POST)
        if form.is_valid():
            form.save()
            return redirect("core:password_change_done")
    else:
        form = views.SetPasswordForm(user=user)
    return TemplateResponse(
        request, "core/password_change.jinja", {"form": form, "target": user}
    )


class SithPasswordResetView(views.PasswordResetView):
    """
    Allows someone to enter an email adresse for resetting password
    """

    template_name = "core/password_reset.jinja"
    email_template_name = "core/password_reset_email.jinja"
    success_url = reverse_lazy("core:password_reset_done")


class SithPasswordResetDoneView(views.PasswordResetDoneView):
    """
    Confirm that the reset email has been sent
    """

    template_name = "core/password_reset_done.jinja"


class SithPasswordResetConfirmView(views.PasswordResetConfirmView):
    """
    Provide a reset password form
    """

    template_name = "core/password_reset_confirm.jinja"
    success_url = reverse_lazy("core:password_reset_complete")


class SithPasswordResetCompleteView(views.PasswordResetCompleteView):
    """
    Confirm the password has sucessfully been reset
    """

    template_name = "core/password_reset_complete.jinja"


def register(request):
    context = {}
    if request.method == "POST":
        form = RegisteringForm(request.POST)
        if form.is_valid():
            logging.debug(
                "Registering "
                + form.cleaned_data["first_name"]
                + form.cleaned_data["last_name"]
            )
            u = form.save()
            context["user_registered"] = u
            context["tests"] = "TEST_REGISTER_USER_FORM_OK"
            form = RegisteringForm()
        else:
            context["error"] = "Erreur"
            context["tests"] = "TEST_REGISTER_USER_FORM_FAIL"
    else:
        form = RegisteringForm()
    context["form"] = form.as_p()
    return render(request, "core/register.jinja", context)


class UserTabsMixin(TabedViewMixin):
    def get_tabs_title(self):
        return self.object.get_display_name()

    def get_list_of_tabs(self):
        tab_list = []
        tab_list.append(
            {
                "url": reverse("core:user_profile", kwargs={"user_id": self.object.id}),
                "slug": "infos",
                "name": _("Infos"),
            }
        )
        tab_list.append(
            {
                "url": reverse(
                    "core:user_godfathers", kwargs={"user_id": self.object.id}
                ),
                "slug": "godfathers",
                "name": _("Family"),
            }
        )
        tab_list.append(
            {
                "url": reverse(
                    "core:user_pictures", kwargs={"user_id": self.object.id}
                ),
                "slug": "pictures",
                "name": _("Pictures"),
            }
        )
        if self.request.user == self.object:
            tab_list.append(
                {"url": reverse("core:user_tools"), "slug": "tools", "name": _("Tools")}
            )
        if self.request.user.can_edit(self.object):
            tab_list.append(
                {
                    "url": reverse(
                        "core:user_edit", kwargs={"user_id": self.object.id}
                    ),
                    "slug": "edit",
                    "name": _("Edit"),
                }
            )
            tab_list.append(
                {
                    "url": reverse(
                        "core:user_prefs", kwargs={"user_id": self.object.id}
                    ),
                    "slug": "prefs",
                    "name": _("Preferences"),
                }
            )
        if self.request.user.can_view(self.object):
            tab_list.append(
                {
                    "url": reverse(
                        "core:user_clubs", kwargs={"user_id": self.object.id}
                    ),
                    "slug": "clubs",
                    "name": _("Clubs"),
                }
            )
        if self.request.user.is_owner(self.object):
            tab_list.append(
                {
                    "url": reverse(
                        "core:user_groups", kwargs={"user_id": self.object.id}
                    ),
                    "slug": "groups",
                    "name": _("Groups"),
                }
            )
        try:
            if self.object.customer and (
                self.object == self.request.user
                or self.request.user.is_in_group(
                    settings.SITH_GROUP_ACCOUNTING_ADMIN_ID
                )
                or self.request.user.is_in_group(
                    settings.SITH_BAR_MANAGER["unix_name"] + settings.SITH_BOARD_SUFFIX
                )
                or self.request.user.is_root
            ):
                tab_list.append(
                    {
                        "url": reverse(
                            "core:user_stats", kwargs={"user_id": self.object.id}
                        ),
                        "slug": "stats",
                        "name": _("Stats"),
                    }
                )
                tab_list.append(
                    {
                        "url": reverse(
                            "core:user_account", kwargs={"user_id": self.object.id}
                        ),
                        "slug": "account",
                        "name": _("Account") + " (%s €)" % self.object.customer.amount,
                    }
                )
        except:
            pass
        return tab_list


class UserView(UserTabsMixin, CanViewMixin, DetailView):
    """
    Display a user's profile
    """

    model = User
    pk_url_kwarg = "user_id"
    context_object_name = "profile"
    template_name = "core/user_detail.jinja"
    current_tab = "infos"

    def get_context_data(self, **kwargs):
        kwargs = super(UserView, self).get_context_data(**kwargs)
        kwargs["gift_form"] = GiftForm(
            user_id=self.object.id, initial={"user": self.object}
        )
        return kwargs


class UserPicturesView(UserTabsMixin, CanViewMixin, DetailView):
    """
    Display a user's pictures
    """

    model = User
    pk_url_kwarg = "user_id"
    context_object_name = "profile"
    template_name = "core/user_pictures.jinja"
    current_tab = "pictures"

    def get_context_data(self, **kwargs):
        kwargs = super(UserPicturesView, self).get_context_data(**kwargs)
        kwargs["albums"] = []
        kwargs["pictures"] = {}
        picture_qs = all_pictures_of_user(self.object)
        last_album = None
        for picture in picture_qs:
            album = picture.parent
            if album.id != last_album:
                kwargs["albums"].append(album)
                kwargs["pictures"][album.id] = []
                last_album = album.id
            kwargs["pictures"][album.id].append(picture)
        return kwargs


def DeleteUserGodfathers(request, user_id, godfather_id, is_father):
    user = User.objects.get(id=user_id)
    if (user == request.user) or request.user.is_root or request.user.is_board_member:
        ud = get_object_or_404(User, id=godfather_id)
        if is_father == "True":
            user.godfathers.remove(ud)
        else:
            user.godchildren.remove(ud)
    else:
        raise PermissionDenied
    return redirect("core:user_godfathers", user_id=user_id)


class UserGodfathersView(UserTabsMixin, CanViewMixin, DetailView):
    """
    Display a user's godfathers
    """

    model = User
    pk_url_kwarg = "user_id"
    context_object_name = "profile"
    template_name = "core/user_godfathers.jinja"
    current_tab = "godfathers"

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        self.form = UserGodfathersForm(request.POST)
        if self.form.is_valid() and self.form.cleaned_data["user"] != self.object:
            if self.form.cleaned_data["type"] == "godfather":
                self.object.godfathers.add(self.form.cleaned_data["user"])
                self.object.save()
            else:
                self.object.godchildren.add(self.form.cleaned_data["user"])
                self.object.save()
            self.form = UserGodfathersForm()
        return super(UserGodfathersView, self).get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        kwargs = super(UserGodfathersView, self).get_context_data(**kwargs)
        try:
            kwargs["form"] = self.form
        except:
            kwargs["form"] = UserGodfathersForm()
        return kwargs


class UserGodfathersTreeView(UserTabsMixin, CanViewMixin, DetailView):
    """
    Display a user's family tree
    """

    model = User
    pk_url_kwarg = "user_id"
    context_object_name = "profile"
    template_name = "core/user_godfathers_tree.jinja"
    current_tab = "godfathers"

    def get_context_data(self, **kwargs):
        kwargs = super(UserGodfathersTreeView, self).get_context_data(**kwargs)
        if "descent" in self.request.GET:
            kwargs["param"] = "godchildren"
        else:
            kwargs["param"] = "godfathers"
        kwargs["members_set"] = set()
        return kwargs


class UserGodfathersTreePictureView(CanViewMixin, DetailView):
    """
    Display a user's tree as a picture
    """

    model = User
    pk_url_kwarg = "user_id"

    def build_complex_graph(self):
        import pygraphviz as pgv

        self.depth = int(self.request.GET.get("depth", 4))
        if self.param == "godfathers":
            self.graph = pgv.AGraph(strict=False, directed=True, rankdir="BT")
        else:
            self.graph = pgv.AGraph(strict=False, directed=True)
        family = set()
        self.level = 1
        # Since the tree isn't very deep, we can build it recursively
        def crawl_family(user):
            if self.level > self.depth:
                return
            self.level += 1
            for u in user.__getattribute__(self.param).all():
                self.graph.add_edge(user.get_short_name(), u.get_short_name())
                if u not in family:
                    family.add(u)
                    crawl_family(u)
            self.level -= 1

        self.graph.add_node(self.object.get_short_name())
        family.add(self.object)
        crawl_family(self.object)

    def build_family_graph(self):
        import pygraphviz as pgv

        self.graph = pgv.AGraph(strict=False, directed=True)
        self.graph.add_node(self.object.get_short_name())
        for u in self.object.godfathers.all():
            self.graph.add_edge(u.get_short_name(), self.object.get_short_name())
        for u in self.object.godchildren.all():
            self.graph.add_edge(self.object.get_short_name(), u.get_short_name())

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()
        if "descent" in self.request.GET:
            self.param = "godchildren"
        elif "ancestors" in self.request.GET:
            self.param = "godfathers"
        else:
            self.param = "family"

        if self.param == "family":
            self.build_family_graph()
        else:
            self.build_complex_graph()
        # Pimp the graph before display
        self.graph.node_attr["color"] = "lightblue"
        self.graph.node_attr["style"] = "filled"
        main_node = self.graph.get_node(self.object.get_short_name())
        main_node.attr["color"] = "sandybrown"
        main_node.attr["shape"] = "rect"
        if self.param == "godchildren":
            self.graph.graph_attr["label"] = _("Godchildren")
        elif self.param == "godfathers":
            self.graph.graph_attr["label"] = _("Family")
        else:
            self.graph.graph_attr["label"] = _("Family")
        img = self.graph.draw(format="png", prog="dot")
        return HttpResponse(img, content_type="image/png")


class UserStatsView(UserTabsMixin, CanViewMixin, DetailView):
    """
    Display a user's stats
    """

    model = User
    pk_url_kwarg = "user_id"
    context_object_name = "profile"
    template_name = "core/user_stats.jinja"
    current_tab = "stats"

    def dispatch(self, request, *arg, **kwargs):
        profile = self.get_object()

        if not hasattr(profile, "customer"):
            raise Http404

        if not (
            profile == request.user
            or request.user.is_in_group(settings.SITH_GROUP_ACCOUNTING_ADMIN_ID)
            or request.user.is_in_group(
                settings.SITH_BAR_MANAGER["unix_name"] + settings.SITH_BOARD_SUFFIX
            )
            or request.user.is_root
        ):
            raise PermissionDenied

        return super(UserStatsView, self).dispatch(request, *arg, **kwargs)

    def get_context_data(self, **kwargs):
        kwargs = super(UserStatsView, self).get_context_data(**kwargs)
        from counter.models import Counter
        from django.db.models import Sum

        foyer = Counter.objects.filter(name="Foyer").first()
        mde = Counter.objects.filter(name="MDE").first()
        gommette = Counter.objects.filter(name="La Gommette").first()
        semester_start = Subscription.compute_start(d=date.today(), duration=3)
        kwargs["total_perm_time"] = sum(
            [p.end - p.start for p in self.object.permanencies.exclude(end=None)],
            timedelta(),
        )
        kwargs["total_foyer_time"] = sum(
            [
                p.end - p.start
                for p in self.object.permanencies.filter(counter=foyer).exclude(
                    end=None
                )
            ],
            timedelta(),
        )
        kwargs["total_mde_time"] = sum(
            [
                p.end - p.start
                for p in self.object.permanencies.filter(counter=mde).exclude(end=None)
            ],
            timedelta(),
        )
        kwargs["total_gommette_time"] = sum(
            [
                p.end - p.start
                for p in self.object.permanencies.filter(counter=gommette).exclude(
                    end=None
                )
            ],
            timedelta(),
        )
        kwargs["total_foyer_buyings"] = sum(
            [
                b.unit_price * b.quantity
                for b in self.object.customer.buyings.filter(
                    counter=foyer, date__gte=semester_start
                )
            ]
        )
        kwargs["total_mde_buyings"] = sum(
            [
                b.unit_price * b.quantity
                for b in self.object.customer.buyings.filter(
                    counter=mde, date__gte=semester_start
                )
            ]
        )
        kwargs["total_gommette_buyings"] = sum(
            [
                b.unit_price * b.quantity
                for b in self.object.customer.buyings.filter(
                    counter=gommette, date__gte=semester_start
                )
            ]
        )
        kwargs["top_product"] = (
            self.object.customer.buyings.values("product__name")
            .annotate(product_sum=Sum("quantity"))
            .exclude(product_sum=None)
            .order_by("-product_sum")
            .all()[:10]
        )
        return kwargs


class UserMiniView(CanViewMixin, DetailView):
    """
    Display a user's profile
    """

    model = User
    pk_url_kwarg = "user_id"
    context_object_name = "profile"
    template_name = "core/user_mini.jinja"


class UserListView(ListView, CanEditPropMixin):
    """
    Displays the user list
    """

    model = User
    template_name = "core/user_list.jinja"


class UserUploadProfilePictView(CanEditMixin, DetailView):
    """
    Handle the upload of the profile picture taken with webcam in navigator
    """

    model = User
    pk_url_kwarg = "user_id"
    template_name = "core/user_edit.jinja"

    def post(self, request, *args, **kwargs):
        from core.utils import resize_image
        from io import BytesIO
        from PIL import Image

        self.object = self.get_object()
        if self.object.profile_pict:
            raise ValidationError(_("User already has a profile picture"))
        f = request.FILES["new_profile_pict"]
        parent = SithFile.objects.filter(parent=None, name="profiles").first()
        name = str(self.object.id) + "_profile.jpg"  # Webcamejs uploads JPGs
        im = Image.open(BytesIO(f.read()))
        new_file = SithFile(
            parent=parent,
            name=name,
            file=resize_image(im, 400, f.content_type.split("/")[-1]),
            owner=self.object,
            is_folder=False,
            mime_type=f.content_type,
            size=f.size,
        )
        new_file.file.name = name
        new_file.save()
        self.object.profile_pict = new_file
        self.object.save()
        return redirect("core:user_edit", user_id=self.object.id)


class UserUpdateProfileView(UserTabsMixin, CanEditMixin, UpdateView):
    """
    Edit a user's profile
    """

    model = User
    pk_url_kwarg = "user_id"
    template_name = "core/user_edit.jinja"
    form_class = UserProfileForm
    current_tab = "edit"
    edit_once = ["profile_pict", "date_of_birth", "first_name", "last_name"]
    board_only = []

    def remove_restricted_fields(self, request):
        """
        Removes edit_once and board_only fields
        """
        for i in self.edit_once:
            if getattr(self.form.instance, i) and not (
                request.user.is_board_member or request.user.is_root
            ):
                self.form.fields.pop(i, None)
        for i in self.board_only:
            if not (request.user.is_board_member or request.user.is_root):
                self.form.fields.pop(i, None)

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()
        self.form = self.get_form()
        self.remove_restricted_fields(request)
        return self.render_to_response(self.get_context_data(form=self.form))

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        self.form = self.get_form()
        self.remove_restricted_fields(request)
        files = request.FILES.items()
        self.form.process(files)
        if (
            request.user.is_authenticated
            and request.user.can_edit(self.object)
            and self.form.is_valid()
        ):
            return super(UserUpdateProfileView, self).form_valid(self.form)
        return self.form_invalid(self.form)

    def get_context_data(self, **kwargs):
        kwargs = super(UserUpdateProfileView, self).get_context_data(**kwargs)
        kwargs["profile"] = self.form.instance
        kwargs["form"] = self.form
        return kwargs


class UserClubView(UserTabsMixin, CanViewMixin, DetailView):
    """
    Display the user's club(s)
    """

    model = User
    context_object_name = "profile"
    pk_url_kwarg = "user_id"
    template_name = "core/user_clubs.jinja"
    current_tab = "clubs"


class UserPreferencesView(UserTabsMixin, CanEditMixin, UpdateView):
    """
    Edit a user's preferences
    """

    model = User
    pk_url_kwarg = "user_id"
    template_name = "core/user_preferences.jinja"
    form_class = modelform_factory(
        Preferences, fields=["receive_weekmail", "notify_on_click", "notify_on_refill"]
    )
    context_object_name = "profile"
    current_tab = "prefs"

    def get_object(self, queryset=None):
        user = get_object_or_404(User, pk=self.kwargs["user_id"])
        return user

    def get_form_kwargs(self):
        kwargs = super(UserPreferencesView, self).get_form_kwargs()
        pref = self.object.preferences
        kwargs.update({"instance": pref})
        return kwargs

    def get_context_data(self, **kwargs):
        kwargs = super(UserPreferencesView, self).get_context_data(**kwargs)
        if not hasattr(self.object, "trombi_user"):
            kwargs["trombi_form"] = UserTrombiForm()
        if hasattr(self.object, "customer"):
            kwargs["student_card_form"] = StudentCardForm()
        return kwargs


class UserUpdateGroupView(UserTabsMixin, CanEditPropMixin, UpdateView):
    """
    Edit a user's groups
    """

    model = User
    pk_url_kwarg = "user_id"
    template_name = "core/user_group.jinja"
    form_class = modelform_factory(
        User, fields=["groups"], widgets={"groups": CheckboxSelectMultiple}
    )
    context_object_name = "profile"
    current_tab = "groups"


class UserToolsView(QuickNotifMixin, UserTabsMixin, UserIsLoggedMixin, TemplateView):
    """
    Displays the logged user's tools
    """

    template_name = "core/user_tools.jinja"
    current_tab = "tools"

    def get_context_data(self, **kwargs):
        self.object = self.request.user
        from launderette.models import Launderette

        kwargs = super(UserToolsView, self).get_context_data(**kwargs)
        kwargs["launderettes"] = Launderette.objects.all()
        kwargs["profile"] = self.request.user
        kwargs["object"] = self.request.user
        return kwargs


class UserAccountBase(UserTabsMixin, DetailView):
    """
    Base class for UserAccount
    """

    model = User
    pk_url_kwarg = "user_id"
    current_tab = "account"

    def dispatch(self, request, *arg, **kwargs):  # Manually validates the rights
        res = super(UserAccountBase, self).dispatch(request, *arg, **kwargs)
        if (
            self.object == request.user
            or request.user.is_in_group(settings.SITH_GROUP_ACCOUNTING_ADMIN_ID)
            or request.user.is_in_group(
                settings.SITH_BAR_MANAGER["unix_name"] + settings.SITH_BOARD_SUFFIX
            )
            or request.user.is_root
        ):
            return res
        raise PermissionDenied


class UserAccountView(UserAccountBase):
    """
    Display a user's account
    """

    template_name = "core/user_account.jinja"

    def expense_by_month(self, obj, calc):
        stats = []

        for year in obj.datetimes("date", "year", order="DESC"):
            stats.append([])
            i = 0
            for month in obj.filter(date__year=year.year).datetimes(
                "date", "month", order="DESC"
            ):
                q = obj.filter(date__year=month.year, date__month=month.month)
                stats[i].append({"sum": sum([calc(p) for p in q]), "date": month})
            i += 1
        return stats

    def invoices_calc(self, query):
        t = 0
        for it in query.items.all():
            t += it.quantity * it.product_unit_price
        return t

    def get_context_data(self, **kwargs):
        kwargs = super(UserAccountView, self).get_context_data(**kwargs)
        kwargs["profile"] = self.object
        try:
            kwargs["customer"] = self.object.customer
            kwargs["buyings_month"] = self.expense_by_month(
                self.object.customer.buyings, (lambda q: q.unit_price * q.quantity)
            )
            kwargs["invoices_month"] = self.expense_by_month(
                self.object.customer.user.invoices, self.invoices_calc
            )
            kwargs["refilling_month"] = self.expense_by_month(
                self.object.customer.refillings, (lambda q: q.amount)
            )
            kwargs["etickets"] = self.object.customer.buyings.exclude(
                product__eticket=None
            ).all()
        except Exception as e:
            print(repr(e))
        return kwargs


class UserAccountDetailView(UserAccountBase, YearMixin, MonthMixin):
    """
    Display a user's account for month
    """

    template_name = "core/user_account_detail.jinja"

    def get_context_data(self, **kwargs):
        kwargs = super(UserAccountDetailView, self).get_context_data(**kwargs)
        kwargs["profile"] = self.object
        kwargs["year"] = self.get_year()
        kwargs["month"] = self.get_month()
        try:
            kwargs["customer"] = self.object.customer
        except:
            pass
        kwargs["tab"] = "account"
        return kwargs


class GiftCreateView(CreateView):
    form_class = GiftForm
    template_name = "core/create.jinja"

    def dispatch(self, request, *args, **kwargs):
        if not (request.user.is_board_member or request.user.is_root):
            raise PermissionDenied
        self.user = get_object_or_404(User, pk=kwargs["user_id"])
        return super(GiftCreateView, self).dispatch(request, *args, **kwargs)

    def get_initial(self):
        return {"user": self.user}

    def get_form_kwargs(self):
        kwargs = super(GiftCreateView, self).get_form_kwargs()
        kwargs["user_id"] = self.user.id
        return kwargs

    def get_success_url(self):
        return reverse_lazy("core:user_profile", kwargs={"user_id": self.user.id})


class GiftDeleteView(CanEditPropMixin, DeleteView):
    model = Gift
    pk_url_kwarg = "gift_id"
    template_name = "core/delete_confirm.jinja"

    def dispatch(self, request, *args, **kwargs):
        self.user = get_object_or_404(User, pk=kwargs["user_id"])
        return super(GiftDeleteView, self).dispatch(request, *args, **kwargs)

    def get_success_url(self):
        return reverse_lazy("core:user_profile", kwargs={"user_id": self.user.id})