ValidityScriptView.get_object() - Code Metrics - Inspection of "Merge branch 'cbv-refactoring'" - troeger/opensubmit - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( b8e570...5310e7 )

by Peter

created 2018-02-06 22:33 UTC

ValidityScriptView.get_object() A

↳ Parent: ValidityScriptView

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	0

Metric	Value
c	3
b	0
f	0
dl	0
loc	5
rs	9.4285
cc	1

from datetime import datetime
import json
import os

from django.views.generic import TemplateView, RedirectView, ListView, DetailView
from django.views.generic.edit import UpdateView
from django.shortcuts import redirect
from django.contrib import auth, messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.core.urlresolvers import reverse_lazy
from django.forms.models import modelform_factory, model_to_dict
from django.core.exceptions import PermissionDenied
from django.shortcuts import get_object_or_404, render

from opensubmit.forms import SettingsForm, getSubmissionForm, SubmissionFileUpdateForm
from opensubmit.models import UserProfile, Submission, TestMachine, Course, Assignment, SubmissionFile
from opensubmit.models.userprofile import db_fixes
from opensubmit.views.helpers import BinaryDownloadMixin


class IndexView(TemplateView):
    template_name = 'index.html'

    def get(self, request):
        if request.user.is_authenticated():
            return redirect('dashboard')
        else:
            return super(IndexView, self).get(request)


class LogoutView(LoginRequiredMixin, RedirectView):
    '''
    TODO: Not needed with Django 1.11, which has own LogoutView.
    '''
    permanent = False
    pattern_name = 'index'

    def get(self, request):
        auth.logout(request)
        return super().get(request)


class SettingsView(LoginRequiredMixin, UpdateView):
    template_name = 'settings.html'
    form_class = SettingsForm
    success_url = reverse_lazy('dashboard')

    def form_valid(self, form):
        messages.info(self.request, 'User settings saved.')
        return super().form_valid(form)

    def get_object(self, queryset=None):
        return self.request.user


class ValidityScriptView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
    model = Assignment

    def get_object(self, queryset=None):
        ass = super().get_object(queryset)
        self.f = ass.attachment_test_validity
        self.fname = self.f.name[self.f.name.rfind('/') + 1:]
        return ass


class FullScriptView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
    model = Assignment

    def get_object(self, queryset=None):
        ass = super().get_object(queryset)
        self.f = ass.attachment_test_full
        self.fname = self.f.name[self.f.name.rfind('/') + 1:]
        return ass


class CoursesView(LoginRequiredMixin, UpdateView):
    template_name = 'courses.html'
    form_class = modelform_factory(UserProfile, fields=['courses'])
    success_url = reverse_lazy('dashboard')

    def form_valid(self, form):
        messages.info(self.request, 'Your choice of courses was saved.')
        return super().form_valid(form)

    def get_object(self, queryset=None):
        return self.request.user.profile

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['courses'] = self.request.user.profile.user_courses()
        return context


class ArchiveView(LoginRequiredMixin, ListView):
    template_name = 'archive.html'

    def get_queryset(self):
        archived = self.request.user.authored.all().exclude(assignment__course__active=False).filter(state=Submission.WITHDRAWN).order_by('-created')
        return archived


class DashboardView(LoginRequiredMixin, TemplateView):
    template_name = 'dashboard.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)

        # Student submissions under validation / grading
        context['subs_in_progress'] = self.request.user.authored.all(). \
            exclude(assignment__course__active=False). \
            exclude(state=Submission.RECEIVED). \
            exclude(state=Submission.WITHDRAWN). \
            exclude(state=Submission.CLOSED). \
            exclude(state=Submission.CLOSED_TEST_FULL_PENDING). \
            order_by('-created')

        # Closed student submissions, graded ones first
        context['subs_finished'] = self.request.user.authored.all(). \
            exclude(assignment__course__active=False). \
            filter(state__in=[Submission.CLOSED, Submission.CLOSED_TEST_FULL_PENDING]). \
            order_by('-assignment__gradingScheme', '-created')

        context['machines'] = TestMachine.objects.filter(enabled=True)
        context['today'] = datetime.now()
        context['user'] = self.request.user
        return context

    def get(self, request):
        # Check and fix database on lower levels for the current user
        db_fixes(request.user)

        # LTI keys and passwords are defined per course
        # We use this here to register students automatically for
        # courses based on their LTI credentials.
        # Note: Authentication is already over here.
        if 'passthroughauth' in request.session:
            if 'ltikey' in request.session['passthroughauth']:
                try:
                    ltikey = request.session['passthroughauth']['ltikey']
                    request.session['ui_disable_logout'] = True
                    course = Course.objects.get(lti_key=ltikey)
                    request.user.profile.courses.add(course)
                    request.user.profile.save()
                except Exception:
                    # LTI-based course registration is only a comfort function,
                    # so we should not crash the app if that goes wrong
                    pass

        # This is the first view than can check
        # if the user settings are complete.
        # This depends on the amount of information the authentication provider
        # already handed in.
        # If incomplete, then we drop annyoing popups until the user gives up.
        settingsform = SettingsForm(model_to_dict(request.user), instance=request.user)
        if not settingsform.is_valid():
            messages.error(request, "Your user settings are incomplete.")

        return super().get(request)


class SubmissionDetailsView(LoginRequiredMixin, DetailView):
    template_name = 'details.html'
    model = Submission

    def get_object(self, queryset=None):
        subm = super().get_object(queryset)
        # only authors should be able to look into submission details
        if not (self.request.user in subm.authors.all() or self.request.user.is_staff):
            raise PermissionDenied()
        return subm


class MachineDetailsView(LoginRequiredMixin, DetailView):
    template_name = 'machine.html'
    model = TestMachine

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        try:
            context['config'] = json.loads(self.object.config)
        except Exception:
            context['config'] = []
        context['queue'] = Submission.pending_student_tests.all()
        context['additional'] = len(Submission.pending_full_tests.all())
        return context


class SubmissionNewView(LoginRequiredMixin, TemplateView):
    '''
    TODO: Currently an ugly direct conversion of the old view
    function implementation. Using something like CreateView
    demands tailoring of the double-form setup here.
    '''
    template_name = 'new.html'

    def dispatch(self, request, *args, **kwargs):
        self.ass = get_object_or_404(Assignment, pk=kwargs['pk'])

        # Check whether submissions are allowed.
        if not self.ass.can_create_submission(user=request.user):
            raise PermissionDenied(
                "You are not allowed to create a submission for this assignment")

        # get submission form according to the assignment type
        self.SubmissionForm = getSubmissionForm(self.ass)

        return super().dispatch(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        # we need to fill all forms here,
        # so that they can be rendered on validation errors
        submissionForm = self.SubmissionForm(request.user,
                                             self.ass,
                                             request.POST,
                                             request.FILES)
        if submissionForm.is_valid():
            # commit=False to set submitter in the instance
            submission = submissionForm.save(commit=False)
            submission.submitter = request.user
            submission.assignment = self.ass
            submission.state = submission.get_initial_state()
            # take uploaded file from extra field
            if self.ass.has_attachment:
                upload_file = request.FILES['attachment']
                submissionFile = SubmissionFile(
                    attachment=submissionForm.cleaned_data['attachment'],
                    original_filename=upload_file.name)
                submissionFile.save()
                submission.file_upload = submissionFile
            submission.save()
            # because of commit=False, we first need to add
            # the form-given authors
            submissionForm.save_m2m()
            submission.save()
            messages.info(request, "New submission saved.")
            if submission.state == Submission.SUBMITTED:
                # Initial state is SUBMITTED,
                # which means that there is no validation
                if not submission.assignment.is_graded():
                    # No validation, no grading. We are done.
                    submission.state = Submission.CLOSED
                    submission.save()
            return redirect('dashboard')
        else:
            messages.error(request, "Please correct your submission information.")
            return render(request, 'new.html', {'submissionForm': submissionForm, 'assignment': self.ass})

    def get(self, request, *args, **kwargs):
        submissionForm = self.SubmissionForm(request.user, self.ass)
        return render(request, 'new.html', {'submissionForm': submissionForm, 'assignment': self.ass})


class SubmissionWithdrawView(LoginRequiredMixin, UpdateView):
    template_name = 'withdraw.html'
    model = Submission
    form_class = modelform_factory(Submission, fields=[])  # make form_valid() work
    success_url = reverse_lazy('dashboard')

    def get_object(self, queryset=None):
        submission = super().get_object(queryset)
        if not submission.can_withdraw(user=self.request.user):
            raise PermissionDenied(
                "Withdrawal for this assignment is no longer possible, or you are unauthorized to access that submission.")
        return submission

    def form_valid(self, form):
        messages.info(self.request, 'Submission successfully withdrawn.')
        self.object.state = Submission.WITHDRAWN
        self.object.save()
        return super().form_valid(form)


class SubmissionUpdateView(LoginRequiredMixin, UpdateView):
    template_name = 'update.html'
    model = Submission
    form_class = SubmissionFileUpdateForm
    success_url = reverse_lazy('dashboard')

    def get_object(self, queryset=None):
        submission = super().get_object(queryset)
        if not submission.can_reupload():
            raise PermissionDenied("Update of submission not / no longer possible.")
        if self.request.user not in submission.authors.all():
            raise PermissionDenied("Update of submission is only allowed for authors.")
        return submission

    def form_valid(self, form):
        upload_file = self.request.FILES['attachment']
        new_file = SubmissionFile(
            attachment=form.files['attachment'],
            original_filename=upload_file.name)
        new_file.save()
        # fix status of old uploaded file
        self.object.file_upload.replaced_by = new_file
        self.object.file_upload.save()
        # store new file for submissions
        self.object.file_upload = new_file
        self.object.state = self.object.get_initial_state()
        self.object.notes = form.data['notes']
        self.object.save()
        messages.info(self.request, 'Submission files successfully updated.')
        return super().form_valid(form)


class AttachmentFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
    model = Submission

    def get_object(self, queryset=None):
        subm = super().get_object(queryset)
        if not (self.request.user in subm.authors.all() or self.request.user.is_staff):
            raise PermissionDenied()
        self.f = subm.file_upload.attachment
        self.fname = subm.file_upload.basename()
        return subm


class GradingFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
    model = Submission

    def get_object(self, queryset=None):
        subm = super().get_object(queryset)
        if not (self.request.user in subm.authors.all() or self.request.user.is_staff):
            raise PermissionDenied()
        self.f = subm.grading_file
        self.fname = os.path.basename(subm.grading_file.name)
        return subm


class DescriptionFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
    model = Assignment

    def get_object(self, queryset=None):
        ass = super().get_object(queryset)
        self.f = ass.description
        self.fname = self.f.name[self.f.name.rfind('/') + 1:]
        return ass



1			from datetime import datetime
2			import json
3			import os
4
5			from django.views.generic import TemplateView, RedirectView, ListView, DetailView
6			from django.views.generic.edit import UpdateView
7			from django.shortcuts import redirect
8			from django.contrib import auth, messages
9			from django.contrib.auth.mixins import LoginRequiredMixin
10			from django.core.urlresolvers import reverse_lazy
11			from django.forms.models import modelform_factory, model_to_dict
12			from django.core.exceptions import PermissionDenied
13			from django.shortcuts import get_object_or_404, render
14
15			from opensubmit.forms import SettingsForm, getSubmissionForm, SubmissionFileUpdateForm
16			from opensubmit.models import UserProfile, Submission, TestMachine, Course, Assignment, SubmissionFile
17			from opensubmit.models.userprofile import db_fixes
18			from opensubmit.views.helpers import BinaryDownloadMixin
19
20
21			class IndexView(TemplateView):
22			template_name = 'index.html'
23
24			def get(self, request):
25			if request.user.is_authenticated():
26			return redirect('dashboard')
27			else:
28			return super(IndexView, self).get(request)
29
30
31			class LogoutView(LoginRequiredMixin, RedirectView):
32			'''
33			TODO: Not needed with Django 1.11, which has own LogoutView.
34			'''
35			permanent = False
36			pattern_name = 'index'
37
38			def get(self, request):
39			auth.logout(request)
40			return super().get(request)
41
42
43			class SettingsView(LoginRequiredMixin, UpdateView):
44			template_name = 'settings.html'
45			form_class = SettingsForm
46			success_url = reverse_lazy('dashboard')
47
48			def form_valid(self, form):
49			messages.info(self.request, 'User settings saved.')
50			return super().form_valid(form)
51
52			def get_object(self, queryset=None):
53			return self.request.user
54
55
56			class ValidityScriptView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
57			model = Assignment
58
59			def get_object(self, queryset=None):
60			ass = super().get_object(queryset)
61			self.f = ass.attachment_test_validity
62			self.fname = self.f.name[self.f.name.rfind('/') + 1:]
63			return ass
64
65
66			class FullScriptView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
67			model = Assignment
68
69			def get_object(self, queryset=None):
70			ass = super().get_object(queryset)
71			self.f = ass.attachment_test_full
72			self.fname = self.f.name[self.f.name.rfind('/') + 1:]
73			return ass
74
75
76			class CoursesView(LoginRequiredMixin, UpdateView):
77			template_name = 'courses.html'
78			form_class = modelform_factory(UserProfile, fields=['courses'])
79			success_url = reverse_lazy('dashboard')
80
81			def form_valid(self, form):
82			messages.info(self.request, 'Your choice of courses was saved.')
83			return super().form_valid(form)
84
85			def get_object(self, queryset=None):
86			return self.request.user.profile
87
88			def get_context_data(self, **kwargs):
89			context = super().get_context_data(**kwargs)
90			context['courses'] = self.request.user.profile.user_courses()
91			return context
92
93
94			class ArchiveView(LoginRequiredMixin, ListView):
95			template_name = 'archive.html'
96
97			def get_queryset(self):
98			archived = self.request.user.authored.all().exclude(assignment__course__active=False).filter(state=Submission.WITHDRAWN).order_by('-created')
99			return archived
100
101
102			class DashboardView(LoginRequiredMixin, TemplateView):
103			template_name = 'dashboard.html'
104
105			def get_context_data(self, **kwargs):
106			context = super().get_context_data(**kwargs)
107
108			# Student submissions under validation / grading
109			context['subs_in_progress'] = self.request.user.authored.all(). \
110			exclude(assignment__course__active=False). \
111			exclude(state=Submission.RECEIVED). \
112			exclude(state=Submission.WITHDRAWN). \
113			exclude(state=Submission.CLOSED). \
114			exclude(state=Submission.CLOSED_TEST_FULL_PENDING). \
115			order_by('-created')
116
117			# Closed student submissions, graded ones first
118			context['subs_finished'] = self.request.user.authored.all(). \
119			exclude(assignment__course__active=False). \
120			filter(state__in=[Submission.CLOSED, Submission.CLOSED_TEST_FULL_PENDING]). \
121			order_by('-assignment__gradingScheme', '-created')
122
123			context['machines'] = TestMachine.objects.filter(enabled=True)
124			context['today'] = datetime.now()
125			context['user'] = self.request.user
126			return context
127
128			def get(self, request):
129			# Check and fix database on lower levels for the current user
130			db_fixes(request.user)
131
132			# LTI keys and passwords are defined per course
133			# We use this here to register students automatically for
134			# courses based on their LTI credentials.
135			# Note: Authentication is already over here.
136			if 'passthroughauth' in request.session:
137			if 'ltikey' in request.session['passthroughauth']:
138			try:
139			ltikey = request.session['passthroughauth']['ltikey']
140			request.session['ui_disable_logout'] = True
141			course = Course.objects.get(lti_key=ltikey)
142			request.user.profile.courses.add(course)
143			request.user.profile.save()
144			except Exception:
145			# LTI-based course registration is only a comfort function,
146			# so we should not crash the app if that goes wrong
147			pass
148
149			# This is the first view than can check
150			# if the user settings are complete.
151			# This depends on the amount of information the authentication provider
152			# already handed in.
153			# If incomplete, then we drop annyoing popups until the user gives up.
154			settingsform = SettingsForm(model_to_dict(request.user), instance=request.user)
155			if not settingsform.is_valid():
156			messages.error(request, "Your user settings are incomplete.")
157
158			return super().get(request)
159
160
161			class SubmissionDetailsView(LoginRequiredMixin, DetailView):
162			template_name = 'details.html'
163			model = Submission
164
165			def get_object(self, queryset=None):
166			subm = super().get_object(queryset)
167			# only authors should be able to look into submission details
168			if not (self.request.user in subm.authors.all() or self.request.user.is_staff):
169			raise PermissionDenied()
170			return subm
171
172
173			class MachineDetailsView(LoginRequiredMixin, DetailView):
174			template_name = 'machine.html'
175			model = TestMachine
176
177			def get_context_data(self, **kwargs):
178			context = super().get_context_data(**kwargs)
179			try:
180			context['config'] = json.loads(self.object.config)
181			except Exception:
182			context['config'] = []
183			context['queue'] = Submission.pending_student_tests.all()
184			context['additional'] = len(Submission.pending_full_tests.all())
185			return context
186
187
188			class SubmissionNewView(LoginRequiredMixin, TemplateView):
189			'''
190			TODO: Currently an ugly direct conversion of the old view
191			function implementation. Using something like CreateView
192			demands tailoring of the double-form setup here.
193			'''
194			template_name = 'new.html'
195
196			def dispatch(self, request, args, *kwargs):
197			self.ass = get_object_or_404(Assignment, pk=kwargs['pk'])
198
199			# Check whether submissions are allowed.
200			if not self.ass.can_create_submission(user=request.user):
201			raise PermissionDenied(
202			"You are not allowed to create a submission for this assignment")
203
204			# get submission form according to the assignment type
205			self.SubmissionForm = getSubmissionForm(self.ass)
206
207			return super().dispatch(request, args, *kwargs)
208
209			def post(self, request, args, *kwargs):
210			# we need to fill all forms here,
211			# so that they can be rendered on validation errors
212			submissionForm = self.SubmissionForm(request.user,
213			self.ass,
214			request.POST,
215			request.FILES)
216			if submissionForm.is_valid():
217			# commit=False to set submitter in the instance
218			submission = submissionForm.save(commit=False)
219			submission.submitter = request.user
220			submission.assignment = self.ass
221			submission.state = submission.get_initial_state()
222			# take uploaded file from extra field
223			if self.ass.has_attachment:
224			upload_file = request.FILES['attachment']
225			submissionFile = SubmissionFile(
226			attachment=submissionForm.cleaned_data['attachment'],
227			original_filename=upload_file.name)
228			submissionFile.save()
229			submission.file_upload = submissionFile
230			submission.save()
231			# because of commit=False, we first need to add
232			# the form-given authors
233			submissionForm.save_m2m()
234			submission.save()
235			messages.info(request, "New submission saved.")
236			if submission.state == Submission.SUBMITTED:
237			# Initial state is SUBMITTED,
238			# which means that there is no validation
239			if not submission.assignment.is_graded():
240			# No validation, no grading. We are done.
241			submission.state = Submission.CLOSED
242			submission.save()
243			return redirect('dashboard')
244			else:
245			messages.error(request, "Please correct your submission information.")
246			return render(request, 'new.html', {'submissionForm': submissionForm, 'assignment': self.ass})
247
248			def get(self, request, args, *kwargs):
249			submissionForm = self.SubmissionForm(request.user, self.ass)
250			return render(request, 'new.html', {'submissionForm': submissionForm, 'assignment': self.ass})
251
252
253			class SubmissionWithdrawView(LoginRequiredMixin, UpdateView):
254			template_name = 'withdraw.html'
255			model = Submission
256			form_class = modelform_factory(Submission, fields=[]) # make form_valid() work
257			success_url = reverse_lazy('dashboard')
258
259			def get_object(self, queryset=None):
260			submission = super().get_object(queryset)
261			if not submission.can_withdraw(user=self.request.user):
262			raise PermissionDenied(
263			"Withdrawal for this assignment is no longer possible, or you are unauthorized to access that submission.")
264			return submission
265
266			def form_valid(self, form):
267			messages.info(self.request, 'Submission successfully withdrawn.')
268			self.object.state = Submission.WITHDRAWN
269			self.object.save()
270			return super().form_valid(form)
271
272
273			class SubmissionUpdateView(LoginRequiredMixin, UpdateView):
274			template_name = 'update.html'
275			model = Submission
276			form_class = SubmissionFileUpdateForm
277			success_url = reverse_lazy('dashboard')
278
279			def get_object(self, queryset=None):
280			submission = super().get_object(queryset)
281			if not submission.can_reupload():
282			raise PermissionDenied("Update of submission not / no longer possible.")
283			if self.request.user not in submission.authors.all():
284			raise PermissionDenied("Update of submission is only allowed for authors.")
285			return submission
286
287			def form_valid(self, form):
288			upload_file = self.request.FILES['attachment']
289			new_file = SubmissionFile(
290			attachment=form.files['attachment'],
291			original_filename=upload_file.name)
292			new_file.save()
293			# fix status of old uploaded file
294			self.object.file_upload.replaced_by = new_file
295			self.object.file_upload.save()
296			# store new file for submissions
297			self.object.file_upload = new_file
298			self.object.state = self.object.get_initial_state()
299			self.object.notes = form.data['notes']
300			self.object.save()
301			messages.info(self.request, 'Submission files successfully updated.')
302			return super().form_valid(form)
303
304
305			class AttachmentFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
306			model = Submission
307
308			def get_object(self, queryset=None):
309			subm = super().get_object(queryset)
310			if not (self.request.user in subm.authors.all() or self.request.user.is_staff):
311			raise PermissionDenied()
312			self.f = subm.file_upload.attachment
313			self.fname = subm.file_upload.basename()
314			return subm
315
316
317			class GradingFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
318			model = Submission
319
320			def get_object(self, queryset=None):
321			subm = super().get_object(queryset)
322			if not (self.request.user in subm.authors.all() or self.request.user.is_staff):
323			raise PermissionDenied()
324			self.f = subm.grading_file
325			self.fname = os.path.basename(subm.grading_file.name)
326			return subm
327
328
329			class DescriptionFileView(LoginRequiredMixin, BinaryDownloadMixin, DetailView):
330			model = Assignment
331
332			def get_object(self, queryset=None):
333			ass = super().get_object(queryset)
334			self.f = ass.description
335			self.fname = self.f.name[self.f.name.rfind('/') + 1:]
336			return ass
337
338

troeger / opensubmit

Push — master ( b8e570...5310e7 )

ValidityScriptView.get_object() A

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