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from datetime import datetime |
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import json |
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import os |
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from django.views.generic import TemplateView, RedirectView, ListView, DetailView |
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from django.views.generic.edit import UpdateView |
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from django.shortcuts import redirect |
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from django.contrib import auth, messages |
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from django.contrib.auth.mixins import LoginRequiredMixin |
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from django.core.urlresolvers import reverse_lazy |
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from django.forms.models import modelform_factory, model_to_dict |
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from django.core.exceptions import PermissionDenied |
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from django.shortcuts import get_object_or_404, render |
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from django.utils.safestring import mark_safe |
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from django.core.urlresolvers import reverse |
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from opensubmit import settings |
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from opensubmit.forms import SettingsForm, getSubmissionForm, SubmissionFileUpdateForm |
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from opensubmit.models import UserProfile, Submission, TestMachine, Course, Assignment, SubmissionFile |
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from opensubmit.models.userprofile import db_fixes |
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from opensubmit.views.helpers import BinaryDownloadMixin |
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class IndexView(TemplateView): |
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template_name = 'index.html' |
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def get(self, request): |
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if request.user.is_authenticated(): |
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return redirect('dashboard') |
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else: |
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return super(IndexView, self).get(request) |
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class ImpressView(TemplateView): |
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template_name = 'impress.html' |
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def get(self, request): |
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if settings.IMPRESS_PAGE: |
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return redirect(settings.IMPRESS_PAGE) |
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else: |
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return super(ImpressView, self).get(request) |
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class PrivacyView(TemplateView): |
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template_name = 'privacy.html' |
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def get(self, request): |
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if settings.PRIVACY_PAGE: |
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return redirect(settings.PRIVACY_PAGE) |
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else: |
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return super(PrivacyView, self).get(request) |
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class LogoutView(LoginRequiredMixin, RedirectView): |
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''' |
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TODO: Not needed with Django 1.11, which has own LogoutView. |
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''' |
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permanent = False |
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pattern_name = 'index' |
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def get(self, request): |
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auth.logout(request) |
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return super().get(request) |
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class SettingsView(LoginRequiredMixin, UpdateView): |
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template_name = 'settings.html' |
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form_class = SettingsForm |
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success_url = reverse_lazy('dashboard') |
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def form_valid(self, form): |
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messages.info(self.request, 'User settings saved.') |
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return super().form_valid(form) |
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def get_object(self, queryset=None): |
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return self.request.user |
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class ValidityScriptView(LoginRequiredMixin, BinaryDownloadMixin, DetailView): |
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model = Assignment |
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def get_object(self, queryset=None): |
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ass = super().get_object(queryset) |
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self.f = ass.attachment_test_validity |
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self.fname = self.f.name[self.f.name.rfind('/') + 1:] |
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return ass |
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class FullScriptView(LoginRequiredMixin, BinaryDownloadMixin, DetailView): |
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model = Assignment |
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def get_object(self, queryset=None): |
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ass = super().get_object(queryset) |
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self.f = ass.attachment_test_full |
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self.fname = self.f.name[self.f.name.rfind('/') + 1:] |
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return ass |
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class CoursesView(LoginRequiredMixin, UpdateView): |
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template_name = 'courses.html' |
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form_class = modelform_factory(UserProfile, fields=['courses']) |
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success_url = reverse_lazy('dashboard') |
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def form_valid(self, form): |
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messages.info(self.request, 'Your choice of courses was saved.') |
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return super().form_valid(form) |
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def get_object(self, queryset=None): |
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return self.request.user.profile |
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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['courses'] = self.request.user.profile.user_courses() |
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return context |
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class ArchiveView(LoginRequiredMixin, ListView): |
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template_name = 'archive.html' |
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def get_queryset(self): |
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archived = self.request.user.authored.all().exclude(assignment__course__active=False).filter(state=Submission.WITHDRAWN).order_by('-created') |
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return archived |
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class DashboardView(LoginRequiredMixin, TemplateView): |
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template_name = 'dashboard.html' |
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def get_context_data(self, **kwargs): |
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context = super().get_context_data(**kwargs) |
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# Student submissions under validation / grading |
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context['subs_in_progress'] = self.request.user.authored.all(). \ |
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exclude(assignment__course__active=False). \ |
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exclude(state=Submission.RECEIVED). \ |
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exclude(state=Submission.WITHDRAWN). \ |
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exclude(state=Submission.CLOSED). \ |
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exclude(state=Submission.CLOSED_TEST_FULL_PENDING). \ |
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order_by('-created') |
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# Closed student submissions, graded ones first |
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context['subs_finished'] = self.request.user.authored.all(). \ |
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exclude(assignment__course__active=False). \ |
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filter(state__in=[Submission.CLOSED, Submission.CLOSED_TEST_FULL_PENDING]). \ |
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order_by('-assignment__gradingScheme', '-created') |
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context['machines'] = TestMachine.objects.filter(enabled=True) |
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context['today'] = datetime.now() |
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context['user'] = self.request.user |
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return context |
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def get(self, request): |
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# Check and fix database on lower levels for the current user |
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db_fixes(request.user) |
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# LTI keys and passwords are defined per course |
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# We use this here to register students automatically for |
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# courses based on their LTI credentials. |
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# Note: Authentication is already over here. |
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if 'passthroughauth' in request.session: |
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if 'ltikey' in request.session['passthroughauth']: |
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try: |
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ltikey = request.session['passthroughauth']['ltikey'] |
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request.session['ui_disable_logout'] = True |
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course = Course.objects.get(lti_key=ltikey) |
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request.user.profile.courses.add(course) |
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request.user.profile.save() |
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except Exception: |
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# LTI-based course registration is only a comfort function, |
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# so we should not crash the app if that goes wrong |
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pass |
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# This is the first view than can check |
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# if the user settings are complete. |
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# This depends on the amount of information the authentication provider |
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# already handed in. |
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# If incomplete, then we drop annyoing popups until the user gives up. |
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settingsform = SettingsForm(model_to_dict(request.user), instance=request.user) |
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if not settingsform.is_valid(): |
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msg = 'Your <a href="{0}">user settings</a> are incomplete.'.format(reverse('settings')) |
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messages.error(request, mark_safe(msg)) |
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return super().get(request) |
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class SubmissionDetailsView(LoginRequiredMixin, DetailView): |
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template_name = 'details.html' |
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model = Submission |
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def get_object(self, queryset=None): |
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subm = super().get_object(queryset) |
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# only authors should be able to look into submission details |
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if not (self.request.user in subm.authors.all() or self.request.user.is_staff): |
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raise PermissionDenied() |
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return subm |
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class MachineDetailsView(LoginRequiredMixin, DetailView): |
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template_name = 'machine.html' |
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model = TestMachine |
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def get_context_data(self, **kwargs): |
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context = super().get_context_data(**kwargs) |
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try: |
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context['config'] = json.loads(self.object.config) |
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except Exception: |
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context['config'] = [] |
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context['queue'] = Submission.pending_student_tests.all() |
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context['additional'] = len(Submission.pending_full_tests.all()) |
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return context |
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class SubmissionNewView(LoginRequiredMixin, TemplateView): |
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''' |
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TODO: Currently an ugly direct conversion of the old view |
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function implementation. Using something like CreateView |
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demands tailoring of the double-form setup here. |
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''' |
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template_name = 'new.html' |
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def dispatch(self, request, *args, **kwargs): |
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self.ass = get_object_or_404(Assignment, pk=kwargs['pk']) |
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# Check whether submissions are allowed. |
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if not self.ass.can_create_submission(user=request.user): |
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raise PermissionDenied( |
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"You are not allowed to create a submission for this assignment") |
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# get submission form according to the assignment type |
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self.SubmissionForm = getSubmissionForm(self.ass) |
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return super().dispatch(request, *args, **kwargs) |
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def post(self, request, *args, **kwargs): |
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# we need to fill all forms here, |
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# so that they can be rendered on validation errors |
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submissionForm = self.SubmissionForm(request.user, |
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self.ass, |
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request.POST, |
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request.FILES) |
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if submissionForm.is_valid(): |
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# commit=False to set submitter in the instance |
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submission = submissionForm.save(commit=False) |
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submission.submitter = request.user |
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submission.assignment = self.ass |
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submission.state = submission.get_initial_state() |
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# take uploaded file from extra field |
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if self.ass.has_attachment: |
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upload_file = request.FILES['attachment'] |
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submissionFile = SubmissionFile( |
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attachment=submissionForm.cleaned_data['attachment'], |
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original_filename=upload_file.name) |
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submissionFile.save() |
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submission.file_upload = submissionFile |
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submission.save() |
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# because of commit=False, we first need to add |
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# the form-given authors |
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submissionForm.save_m2m() |
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submission.save() |
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messages.info(request, "New submission saved.") |
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if submission.state == Submission.SUBMITTED: |
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# Initial state is SUBMITTED, |
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# which means that there is no validation |
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if not submission.assignment.is_graded(): |
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# No validation, no grading. We are done. |
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submission.state = Submission.CLOSED |
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submission.save() |
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return redirect('dashboard') |
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else: |
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messages.error(request, "Please correct your submission information.") |
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return render(request, 'new.html', {'submissionForm': submissionForm, 'assignment': self.ass}) |
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def get(self, request, *args, **kwargs): |
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submissionForm = self.SubmissionForm(request.user, self.ass) |
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return render(request, 'new.html', {'submissionForm': submissionForm, 'assignment': self.ass}) |
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class SubmissionWithdrawView(LoginRequiredMixin, UpdateView): |
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template_name = 'withdraw.html' |
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model = Submission |
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form_class = modelform_factory(Submission, fields=[]) # make form_valid() work |
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success_url = reverse_lazy('dashboard') |
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def get_object(self, queryset=None): |
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submission = super().get_object(queryset) |
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if not submission.can_withdraw(user=self.request.user): |
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raise PermissionDenied( |
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"Withdrawal for this assignment is no longer possible, or you are unauthorized to access that submission.") |
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return submission |
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def form_valid(self, form): |
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messages.info(self.request, 'Submission successfully withdrawn.') |
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self.object.state = Submission.WITHDRAWN |
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self.object.save() |
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return super().form_valid(form) |
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class SubmissionUpdateView(LoginRequiredMixin, UpdateView): |
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template_name = 'update.html' |
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model = Submission |
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form_class = SubmissionFileUpdateForm |
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success_url = reverse_lazy('dashboard') |
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def get_object(self, queryset=None): |
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submission = super().get_object(queryset) |
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if not submission.can_reupload(): |
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raise PermissionDenied("Update of submission not / no longer possible.") |
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if self.request.user not in submission.authors.all(): |
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raise PermissionDenied("Update of submission is only allowed for authors.") |
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return submission |
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def form_valid(self, form): |
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upload_file = self.request.FILES['attachment'] |
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new_file = SubmissionFile( |
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attachment=form.files['attachment'], |
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original_filename=upload_file.name) |
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new_file.save() |
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# fix status of old uploaded file |
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self.object.file_upload.replaced_by = new_file |
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self.object.file_upload.save() |
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# store new file for submissions |
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self.object.file_upload = new_file |
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self.object.state = self.object.get_initial_state() |
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self.object.notes = form.data['notes'] |
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self.object.save() |
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messages.info(self.request, 'Submission files successfully updated.') |
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return super().form_valid(form) |
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class AttachmentFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView): |
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model = Submission |
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def get_object(self, queryset=None): |
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subm = super().get_object(queryset) |
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if not (self.request.user in subm.authors.all() or self.request.user.is_staff): |
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raise PermissionDenied() |
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self.f = subm.file_upload.attachment |
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self.fname = subm.file_upload.basename() |
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return subm |
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class GradingFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView): |
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model = Submission |
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def get_object(self, queryset=None): |
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subm = super().get_object(queryset) |
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if not (self.request.user in subm.authors.all() or self.request.user.is_staff): |
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raise PermissionDenied() |
346
|
|
|
self.f = subm.grading_file |
347
|
|
|
self.fname = os.path.basename(subm.grading_file.name) |
348
|
|
|
return subm |
349
|
|
|
|
350
|
|
|
|
351
|
|
|
class DescriptionFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView): |
352
|
|
|
model = Assignment |
353
|
|
|
|
354
|
|
|
def get_object(self, queryset=None): |
355
|
|
|
ass = super().get_object(queryset) |
356
|
|
|
self.f = ass.description |
357
|
|
|
self.fname = self.f.name[self.f.name.rfind('/') + 1:] |
358
|
|
|
return ass |
359
|
|
|
|
360
|
|
|
|