141 lines
4.5 KiB
Python
141 lines
4.5 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from django.views import View
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from django.views.generic.edit import CreateView
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from django.views.generic.detail import SingleObjectMixin
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from django.views.generic import ListView
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from django.contrib import messages
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from django.contrib.auth.mixins import UserPassesTestMixin, LoginRequiredMixin
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from django.contrib.messages.views import SuccessMessageMixin
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from django.shortcuts import redirect, get_object_or_404
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from django.urls import reverse_lazy, reverse
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from django.utils.translation import gettext as _
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from lostplaces.models import Place
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from lostplaces.common import redirect_referer_or
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class IsAuthenticatedMixin(LoginRequiredMixin, View):
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'''
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A view mixin that checks wether a user is logged in or not.
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If the user is not logged in, he gets redirected to
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the login page.
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'''
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login_url = reverse_lazy('login')
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permission_denied_message = _('Please login to proceed')
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def handle_no_permission(self):
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if not self.request.user.is_authenticated:
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messages.error(self.request, self.permission_denied_message)
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return super().handle_no_permission()
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class IsPlaceSubmitterMixin(UserPassesTestMixin, View):
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'''
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A view mixin that checks wether a user is the submitter
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of a place, throws 403 if the user is not. The subclass
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has to provide a get_place method, which returns the
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place to check.
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'''
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place_submitter_error_message = None
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def get_place(self):
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pass
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def test_func(self):
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""" Check if user is eligible to modify place. """
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if not hasattr(self.request, 'user'):
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return False
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if self.request.user.is_superuser:
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return True
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# Check if currently logged in user was the submitter
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place_obj = self.get_place()
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if place_obj and hasattr(place_obj, 'submitted_by') and self.request.user.explorer == place_obj.submitted_by:
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return True
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if self.place_submitter_error_message:
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messages.error(self.request, self.place_submitter_error_message)
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return False
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class IsEligibleToSeePlaceMixin(UserPassesTestMixin):
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not_eligible_to_see_message = None
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def get_place(self):
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pass
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def test_func(self):
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if not hasattr(self.request, 'user'):
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return False
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if self.request.user.explorer.is_eligible_to_see(self.get_place()):
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return True
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if self.not_eligible_to_see_message:
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messages.error(self.request, self.not_eligible_to_see_message)
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return False
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class PlaceAssetCreateView(IsAuthenticatedMixin, SuccessMessageMixin, CreateView):
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"""
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Abstract View for creating a place asset (i.e. PlaceImage)
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"""
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model = None
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template_name = ''
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success_message = ''
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def get(self, request, place_id, *args, **kwargs):
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self.place = get_object_or_404(Place, pk=place_id)
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return super().get(request, *args, **kwargs)
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def post(self, request, place_id, *args, **kwargs):
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self.place = get_object_or_404(Place, pk=place_id)
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response = super().post(request, *args, **kwargs)
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self.object.place = self.place
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self.object.submitted_by = request.user.explorer
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self.object.save()
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return response
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['place'] = self.place
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return context
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def get_success_url(self):
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return reverse_lazy('place_detail', kwargs={'pk': self.place.id})
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class PlaceAssetDeleteView(IsAuthenticatedMixin, IsPlaceSubmitterMixin, SingleObjectMixin, View):
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model = None
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success_message = ''
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permission_denied_message = ''
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def get_place(self):
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place_id = self.get_object().place.id
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return Place.objects.get(pk=place_id)
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def test_func(self):
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can_edit_place = super().test_func()
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if can_edit_place:
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return True
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if self.get_object().submitted_by == self.request.user.explorer:
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return True
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messages.error(self.request, self.permission_denied_message)
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return False
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def get(self, request, *args, **kwargs):
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place_id = self.get_object().place.id
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self.get_object().delete()
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messages.success(self.request, self.success_message)
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return redirect_referer_or(request, reverse('place_detail', kwargs={'pk': place_id}))
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class LevelCapPlaceListView(ListView):
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model = Place
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def get_queryset(self):
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return self.request.user.explorer.get_places_eligible_to_see() |