From b45176ed7bcc977772878576ff55af7202fecbb0 Mon Sep 17 00:00:00 2001
From: Evan Zhang <Ninjaclasher@users.noreply.github.com>
Date: Fri, 4 Jan 2019 15:31:11 -0500
Subject: [PATCH] Display available judges on problem pages (#851)

Addresses #78.
---
 judge/views/problem.py         |  5 +++--
 resources/problem.scss         |  4 ++--
 templates/problem/problem.html | 27 ++++++++++++++++++++++++++-
 3 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/judge/views/problem.py b/judge/views/problem.py
index b32e839f8f..73238893b6 100644
--- a/judge/views/problem.py
+++ b/judge/views/problem.py
@@ -31,8 +31,8 @@
 from django_ace.widgets import ACE_URL
 from judge.comments import CommentedDetailView
 from judge.forms import ProblemSubmitForm
-from judge.models import Problem, Submission, ContestSubmission, ContestProblem, Language, ProblemGroup, Solution, \
-    ProblemTranslation, TranslatedProblemForeignKeyQuerySet, RuntimeVersion, ProblemType
+from judge.models import ContestSubmission, ContestProblem, Judge, Language, Problem, ProblemGroup, ProblemTranslation, \
+    ProblemType, RuntimeVersion, Solution, Submission, TranslatedProblemForeignKeyQuerySet
 from judge.pdf_problems import HAS_PDF, DefaultPdfMaker
 from judge.utils.diggpaginator import DiggPaginator
 from judge.utils.opengraph import generate_opengraph
@@ -174,6 +174,7 @@ def get_context_data(self, **kwargs):
             if contest_problem.max_submissions:
                 context['submissions_left'] = max(contest_problem.max_submissions - get_contest_submission_count(self.object.code, user.profile), 0)
 
+        context['available_judges'] = Judge.objects.filter(online=True, problems=self.object)
         context['show_languages'] = self.object.allowed_languages.count() != Language.objects.count()
         context['has_pdf_render'] = HAS_PDF
         context['completed_problem_ids'] = self.get_completed_problems()
diff --git a/resources/problem.scss b/resources/problem.scss
index 4dfe42fdb0..1f800acaf5 100644
--- a/resources/problem.scss
+++ b/resources/problem.scss
@@ -127,7 +127,7 @@ ul.problem-list {
     content: " ";
 }
 
-.authors-value {
+.authors-value, .judges-value {
     padding-left: 1.5em;
 }
 
@@ -268,4 +268,4 @@ ul.problem-list {
         padding: 0 3px;
         font-size: 13px;
     }
-}
\ No newline at end of file
+}
diff --git a/templates/problem/problem.html b/templates/problem/problem.html
index c5d4203b2b..b2d619ec63 100644
--- a/templates/problem/problem.html
+++ b/templates/problem/problem.html
@@ -34,7 +34,7 @@
             min-width: 12.5em;
         }
 
-        #problem-types, #allowed-langs {
+        #problem-types, #allowed-langs, #available-judges {
             padding-top: 1em;
         }
 
@@ -238,6 +238,31 @@ <h2 style="color:#393630; display: inline-block">{{ title }}</h2>
             </div>
         </div>
     {% endif %}
+    {% if problem.is_editable_by(request.user) %}
+        <div id="available-judges">
+            <i class="fa fa-database fa-fw"></i><span
+                class="pi-name">{% trans trimmed count=available_judges|length %}
+                Judge:
+                {% pluralize count %}
+                Judges:
+            {% endtrans %}
+            </span>
+            <div class="pi-value judges-value">
+                {% if available_judges %}
+                    {% if perms.judge.change_judge %}
+                        {% for judge in available_judges %}
+                            <a href="{{ url('admin:judge_judge_change', judge.id) }}">{{ judge.name }}</a>
+                            {% if not loop.last %}, {% endif %}
+                        {% endfor %}
+                    {% else %}
+                        {{ available_judges|join(", ") }}
+                    {% endif %}
+                {% else %}
+                    <i>{{ _('none available') }}</i>
+                {% endif %}
+            </div>
+        </div>
+    {% endif %}
 {% endblock %}
 
 {% block description %}