Contest caching

judge/admin/contest.py

@@ -299,6 +299,18 @@ class ContestAdmin(CompareVersionAdmin):
             self._rescore(obj.key)
             self._rescored = True
 
+        if form.changed_data and any(
+            f in form.changed_data
+            for f in (
+                "authors",
+                "curators",
+                "testers",
+            )
+        ):
+            Contest._author_ids.dirty(obj)
+            Contest._curator_ids.dirty(obj)
+            Contest._tester_ids.dirty(obj)
+
     def save_related(self, request, form, formsets, change):
         super().save_related(request, form, formsets, change)
         # Only rescored if we did not already do so in `save_model`

judge/models/contest.py

@@ -25,6 +25,7 @@ from judge.ratings import rate_contest
 from judge.models.pagevote import PageVotable
 from judge.models.bookmark import Bookmarkable
 from judge.fulltext import SearchManager
+from judge.caching import cache_wrapper
 
 __all__ = [
     "Contest",
@@ -455,25 +456,41 @@ class Contest(models.Model, PageVotable, Bookmarkable):
     def ended(self):
         return self.end_time < self._now
 
-    @cached_property
-    def author_ids(self):
-        return Contest.authors.through.objects.filter(contest=self).values_list(
-            "profile_id", flat=True
+    @cache_wrapper(prefix="Coai")
+    def _author_ids(self):
+        return set(
+            Contest.authors.through.objects.filter(contest=self).values_list(
+                "profile_id", flat=True
+            )
         )
 
-    @cached_property
-    def editor_ids(self):
-        return self.author_ids.union(
+    @cache_wrapper(prefix="Coci")
+    def _curator_ids(self):
+        return set(
             Contest.curators.through.objects.filter(contest=self).values_list(
                 "profile_id", flat=True
             )
         )
 
+    @cache_wrapper(prefix="Coti")
+    def _tester_ids(self):
+        return set(
+            Contest.testers.through.objects.filter(contest=self).values_list(
+                "profile_id", flat=True
+            )
+        )
+
+    @cached_property
+    def author_ids(self):
+        return self._author_ids()
+
+    @cached_property
+    def editor_ids(self):
+        return self.author_ids.union(self._curator_ids())
+
     @cached_property
     def tester_ids(self):
-        return Contest.testers.through.objects.filter(contest=self).values_list(
-            "profile_id", flat=True
-        )
+        return self._tester_ids()
 
     def __str__(self):
         return f"{self.name} ({self.key})"

judge/utils/infinite_paginator.py

@@ -116,7 +116,7 @@ def infinite_paginate(queryset, page, page_size, pad_pages, paginator=None):
 
 
 class InfinitePaginationMixin:
-    pad_pages = 4
+    pad_pages = 2
 
     @property
     def use_infinite_pagination(self):

judge/views/contests.py

@@ -198,7 +198,7 @@ class ContestList(
         queryset = (
             super(ContestList, self)
             .get_queryset()
-            .prefetch_related("tags", "organizations", "authors", "curators", "testers")
+            .prefetch_related("tags", "organizations")
         )
 
         if self.request.GET.get("contest"):
@@ -248,9 +248,6 @@ class ContestList(
                         virtual=0, user=self.request.profile, contest_id__in=present
                     )
                     .select_related("contest")
-                    .prefetch_related(
-                        "contest__authors", "contest__curators", "contest__testers"
-                    )
                     .annotate(key=F("contest__key"))
                 ):
                     if not participation.ended:

judge/views/organization.py

@@ -478,6 +478,9 @@ class OrganizationSubmissions(
             ),
         )
 
+    def get_title(self):
+        return _("Submissions in") + f" {self.organization}"
+
 
 class OrganizationMembershipChange(
     LoginRequiredMixin, OrganizationMixin, SingleObjectMixin, View
@@ -983,6 +986,18 @@ class EditOrganizationContest(
                 )
             ):
                 transaction.on_commit(rescore_contest.s(self.object.key).delay)
+
+            if any(
+                f in form.changed_data
+                for f in (
+                    "authors",
+                    "curators",
+                    "testers",
+                )
+            ):
+                Contest._author_ids.dirty(self.object)
+                Contest._curator_ids.dirty(self.object)
+                Contest._tester_ids.dirty(self.object)
             return res
 
     def get_problem_formset(self, post=False):
@@ -1075,7 +1090,7 @@ class EditOrganizationBlog(
             if self.organization not in self.blog.organizations.all():
                 raise Exception("This blog does not belong to this organization")
             if (
-                self.request.profile not in self.blog.authors.all()
+                self.request.profile.id not in self.blog.get_authors()
                 and not self.can_edit_organization(self.organization)
             ):
                 raise Exception("Not allowed to edit this blog")

judge/views/problem.py

@@ -64,6 +64,7 @@ from judge.models import (
     Organization,
     Profile,
     LanguageTemplate,
+    Contest,
 )
 from judge.pdf_problems import DefaultPdfMaker, HAS_PDF
 from judge.utils.diggpaginator import DiggPaginator
@@ -587,7 +588,7 @@ class ProblemList(QueryStringSortMixin, TitleMixin, SolvedProblemMixin, ListView
             i
             for i in query
             if i in self.profile.organizations.values_list("id", flat=True)
-        ]
+        ][:3]
 
     def get_normal_queryset(self):
         queryset = Problem.get_visible_problems(self.request.user)
@@ -599,9 +600,14 @@ class ProblemList(QueryStringSortMixin, TitleMixin, SolvedProblemMixin, ListView
             self.org_query = [self.request.organization.id]
         if self.org_query:
             self.org_query = self.get_org_query(self.org_query)
+            contest_problems = (
+                Contest.objects.filter(organizations__in=self.org_query)
+                .select_related("problems")
+                .values_list("contest_problems__problem__id")
+                .distinct()
+            )
             queryset = queryset.filter(
-                Q(organizations__in=self.org_query)
-                | Q(contests__contest__organizations__in=self.org_query)
+                Q(organizations__in=self.org_query) | Q(id__in=contest_problems)
             )
         if self.author_query:
             queryset = queryset.filter(authors__in=self.author_query)

judge/views/submission.py

@@ -52,7 +52,7 @@ from judge.utils.timedelta import nice_repr
 def submission_related(queryset):
     return queryset.select_related("user", "problem", "language").only(
         "id",
-        "user_id",
+        "user__id",
         "problem__name",
         "problem__code",
         "problem__is_public",
@@ -67,7 +67,8 @@ def submission_related(queryset):
         "case_points",
         "case_total",
         "current_testcase",
-        "contest_object",
+        "contest_object__key",
+        "contest_object__name",
     )
 
 

resources/problem.scss

@@ -170,7 +170,7 @@ ul.problem-list {
 
 .organization-tags {
     padding-left: 0.75em;
-    vertical-align: middle;
+    display: flex;
 }
 
 .organization-tag {
@@ -183,6 +183,7 @@ ul.problem-list {
     position: relative;
     background-color: #ccc;
     color: initial;
+    min-height: 1.5em;
 }
 
 .organization-tag a {

templates/contest/list.html

@@ -193,7 +193,7 @@
 {% macro contest_join(contest, request) %}
   {% if request.in_contest and request.participation.contest == contest %}
     <button class="small" disabled>{{ _('In contest') }}</button>
-  {% elif request.profile in contest.authors.all() or request.profile in contest.curators.all() or request.profile in contest.testers.all() %}
+  {% elif request.profile.id in contest.editor_ids or request.profile.id in contest.tester_ids %}
     <form action="{{ url('contest_join', contest.key) }}" method="post">
       {% csrf_token %}
       <input type="submit" class="unselectable button full small"