Files
breccia-mapper/people/views/relationship.py
James Graham a94db2713e fix: Only allow users to create rels as source
There is now no field for users to define the source of a relationship
The source is always the person in the URL
And only that user or staff can access the form
2020-08-14 17:38:22 +01:00

128 lines
4.0 KiB
Python

"""
Views for displaying or manipulating instances of :class:`Relationship`.
"""
from django.db import IntegrityError
from django.forms import ValidationError
from django.urls import reverse
from django.utils import timezone
from django.views.generic import CreateView, DetailView, FormView
from people import forms, models, permissions
class RelationshipDetailView(permissions.UserIsLinkedPersonMixin, DetailView):
"""
View displaying details of a :class:`Relationship`.
"""
model = models.Relationship
template_name = 'people/relationship/detail.html'
related_person_field = 'source'
class RelationshipCreateView(permissions.UserIsLinkedPersonMixin, FormView):
"""
View for creating a :class:`Relationship`.
Displays / processes a form containing the :class:`RelationshipQuestion`s.
"""
model = models.Relationship
template_name = 'people/relationship/create.html'
form_class = forms.RelationshipForm
def get_person(self) -> models.Person:
return models.Person.objects.get(pk=self.kwargs.get('person_pk'))
def get_test_person(self) -> models.Person:
return self.get_person()
def form_valid(self, form):
try:
self.object = models.Relationship.objects.create(
source=self.get_person(), target=form.cleaned_data['target'])
except IntegrityError:
form.add_error(
None,
ValidationError('This relationship already exists',
code='already-exists'))
return self.form_invalid(form)
return super().form_valid(form)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['person'] = self.get_person()
return context
def get_success_url(self):
return reverse('people:relationship.update',
kwargs={'relationship_pk': self.object.pk})
class RelationshipUpdateView(permissions.UserIsLinkedPersonMixin, CreateView):
"""
View for updating the details of a relationship.
Creates a new :class:`RelationshipAnswerSet` for the :class:`Relationship`.
Displays / processes a form containing the :class:`RelationshipQuestion`s.
"""
model = models.RelationshipAnswerSet
template_name = 'people/relationship/update.html'
form_class = forms.RelationshipAnswerSetForm
def get_test_person(self) -> models.Person:
"""
Get the person instance which should be used for access control checks.
"""
relationship = models.Relationship.objects.get(
pk=self.kwargs.get('relationship_pk'))
return relationship.source
def get(self, request, *args, **kwargs):
self.relationship = models.Relationship.objects.get(
pk=self.kwargs.get('relationship_pk'))
self.person = self.relationship.source
return super().get(request, *args, **kwargs)
def post(self, request, *args, **kwargs):
self.relationship = models.Relationship.objects.get(
pk=self.kwargs.get('relationship_pk'))
self.person = self.relationship.source
return super().post(request, *args, **kwargs)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['person'] = self.person
context['relationship'] = self.relationship
return context
def get_initial(self):
initial = super().get_initial()
initial['relationship'] = self.relationship
return initial
def form_valid(self, form):
"""
Mark any previous answer sets as replaced.
"""
response = super().form_valid(form)
now_date = timezone.now().date()
# Shouldn't be more than one after initial updates after migration
for answer_set in self.relationship.answer_sets.exclude(
pk=self.object.pk):
answer_set.replaced_timestamp = now_date
answer_set.save()
return response