Add toggle button

judge/middleware.py

@@ -57,7 +57,9 @@ class ContestMiddleware(object):
             profile.update_contest()
             request.participation = profile.current_contest
             request.in_contest = request.participation is not None
+            request.contest_mode = request.session.get('contest_mode', True)
         else:
             request.in_contest = False
             request.participation = None
+        request.in_contest_mode = request.in_contest and request.contest_mode
         return self.get_response(request)

judge/views/contests.py

@@ -15,7 +15,7 @@ from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist
 from django.db import IntegrityError
 from django.db.models import Case, Count, F, FloatField, IntegerField, Max, Min, Q, Sum, Value, When
 from django.db.models.expressions import CombinedExpression
-from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseRedirect, JsonResponse
+from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseRedirect, JsonResponse, HttpResponseNotAllowed
 from django.shortcuts import get_object_or_404, render
 from django.template.defaultfilters import date as date_filter
 from django.urls import reverse, reverse_lazy
@@ -46,7 +46,7 @@ from judge.widgets import HeavyPreviewPageDownWidget
 __all__ = ['ContestList', 'ContestDetail', 'ContestRanking', 'ContestJoin', 'ContestLeave', 'ContestCalendar',
            'ContestClone', 'ContestStats', 'ContestMossView', 'ContestMossDelete', 'contest_ranking_ajax',
            'ContestParticipationList', 'ContestParticipationDisqualify', 'get_contest_ranking_list',
-           'base_contest_ranking_list', 'ContestClarificationView']
+           'base_contest_ranking_list', 'ContestClarificationView', 'update_contest_mode']
 
 
 def _find_contest(request, key, private_check=True):
@@ -428,6 +428,7 @@ class ContestLeave(LoginRequiredMixin, ContestMixin, BaseDetailView):
                                    _('You are not in contest "%s".') % contest.key, 404)
 
         profile.remove_contest()
+        request.session['contest_mode'] = True # reset contest_mode
         return HttpResponseRedirect(reverse('contest_view', args=(contest.key,)))
 
 
@@ -953,3 +954,12 @@ class ContestClarificationAjax(ContestMixin, DetailView):
             cla['order'] = self.object.get_label_for_problem(problems.index(cla['problem']))
 
         return JsonResponse(queryset, safe=False, json_dumps_params={'ensure_ascii': False})
+
+
+def update_contest_mode(request):
+    if not request.is_ajax() or not request.method=='POST':
+        return HttpResponseNotAllowed(['POST'])
+
+    old_mode = request.session.get('contest_mode', True)
+    request.session['contest_mode'] = not old_mode
+    return HttpResponse()

judge/views/problem.py

@@ -71,7 +71,8 @@ class ProblemMixin(object):
     def get(self, request, *args, **kwargs):
         try:
             return super(ProblemMixin, self).get(request, *args, **kwargs)
-        except Http404:
+        except Http404 as e:
+            print(e)
             return self.no_such_problem()
 
 
@@ -90,7 +91,8 @@ class SolvedProblemMixin(object):
 
     @cached_property
     def in_contest(self):
-        return self.profile is not None and self.profile.current_contest is not None
+        return self.profile is not None and self.profile.current_contest is not None \
+            and self.request.in_contest_mode
 
     @cached_property
     def contest(self):
@@ -120,10 +122,9 @@ class ProblemSolution(SolvedProblemMixin, ProblemMixin, TitleMixin, CommentedDet
         solution = get_object_or_404(Solution, problem=self.object)
 
         if (not solution.is_public or solution.publish_on > timezone.now()) and \
-                not self.request.user.has_perm('judge.see_private_solution') or \
-                (self.request.user.is_authenticated and
-                 self.request.profile.current_contest):
+                not self.request.user.has_perm('judge.see_private_solution'):
             raise Http404()
+
         context['solution'] = solution
         context['has_solved_problem'] = self.object.id in self.get_completed_problems()
         return context

judge/views/submission.py

@@ -262,7 +262,8 @@ class SubmissionsListBase(DiggPaginatorMixin, TitleMixin, ListView):
 
     @cached_property
     def in_contest(self):
-        return self.request.user.is_authenticated and self.request.profile.current_contest is not None
+        return self.request.user.is_authenticated and self.request.profile.current_contest is not None \
+            and self.request.in_contest_mode
 
     @cached_property
     def contest(self):

judge/views/user.py

@@ -92,7 +92,8 @@ class UserPage(TitleMixin, UserMixin, DetailView):
 
     @cached_property
     def in_contest(self):
-        return self.profile is not None and self.profile.current_contest is not None
+        return self.profile is not None and self.profile.current_contest is not None \
+            and self.request.in_contest_mode
 
     def get_completed_problems(self):
         if self.in_contest:
@@ -374,8 +375,8 @@ class FixedContestRanking(ContestRanking):
 
 def users(request):
     if request.user.is_authenticated:
-        participation = request.profile.current_contest
-        if participation is not None:
+        if request.in_contest_mode:
+            participation = request.profile.current_contest
             contest = participation.contest
             return FixedContestRanking.as_view(contest=contest)(request, contest=contest.key)
     return user_list_view(request)