Fix decimal points in contest total score

judge/admin/contest.py

@@ -110,7 +110,7 @@ class ContestAdmin(VersionAdmin):
     fieldsets = (
         (None, {'fields': ('key', 'name', 'organizers')}),
         (_('Settings'), {'fields': ('is_visible', 'use_clarifications', 'hide_problem_tags', 'hide_scoreboard',
-                                    'run_pretests_only')}),
+                                    'run_pretests_only', 'points_precision')}),
         (_('Scheduling'), {'fields': ('start_time', 'end_time', 'time_limit')}),
         (_('Details'), {'fields': ('description', 'og_image', 'logo_override_image', 'tags', 'summary')}),
         (_('Format'), {'fields': ('format_name', 'format_config')}),

judge/contest_format/default.py

@@ -53,7 +53,7 @@ class DefaultContestFormat(BaseContestFormat):
                        self.best_solution_state(format_data['points'], contest_problem.points)),
                 url=reverse('contest_user_submissions',
                             args=[self.contest.key, participation.user.user.username, contest_problem.problem.code]),
-                points=floatformat(format_data['points']),
+                points=floatformat(format_data['points'], -self.contest.points_precision),
                 time=nice_repr(timedelta(seconds=format_data['time']), 'noday'),
             )
         else:
@@ -62,7 +62,7 @@ class DefaultContestFormat(BaseContestFormat):
     def display_participation_result(self, participation):
         return format_html(
             u'<td class="user-points">{points}<div class="solving-time">{cumtime}</div></td>',
-            points=floatformat(participation.score),
+            points=floatformat(participation.score, -self.contest.points_precision),
             cumtime=nice_repr(timedelta(seconds=participation.cumtime), 'noday'),
         )
 

judge/migrations/0111_contest_decimal_points.py

@@ -0,0 +1,24 @@
+# Generated by Django 2.2.12 on 2020-10-26 19:51
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('judge', '0110_notification_author'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='contest',
+            name='points_precision',
+            field=models.IntegerField(default=2, help_text='Number of digits to round points to.', validators=[django.core.validators.MinValueValidator(0), django.core.validators.MaxValueValidator(10)], verbose_name='precision points'),
+        ),
+        migrations.AlterField(
+            model_name='contestparticipation',
+            name='score',
+            field=models.FloatField(db_index=True, default=0, verbose_name='score'),
+        ),
+    ]

judge/models/contest.py

@@ -1,5 +1,5 @@
 from django.core.exceptions import ValidationError
-from django.core.validators import MinValueValidator, RegexValidator
+from django.core.validators import MaxValueValidator, MinValueValidator, RegexValidator
 from django.db import models, transaction
 from django.db.models import CASCADE
 from django.urls import reverse
@@ -113,6 +113,9 @@ class Contest(models.Model):
                               help_text=_('A JSON object to serve as the configuration for the chosen contest format '
                                           'module. Leave empty to use None. Exact format depends on the contest format '
                                           'selected.'))
+    points_precision = models.IntegerField(verbose_name=_('precision points'), default=2,
+                                           validators=[MinValueValidator(0), MaxValueValidator(10)],
+                                           help_text=_('Number of digits to round points to.'))
     
     @cached_property
     def format_class(self):
@@ -256,7 +259,7 @@ class ContestParticipation(models.Model):
     contest = models.ForeignKey(Contest, verbose_name=_('associated contest'), related_name='users', on_delete=CASCADE)
     user = models.ForeignKey(Profile, verbose_name=_('user'), related_name='contest_history', on_delete=CASCADE)
     real_start = models.DateTimeField(verbose_name=_('start time'), default=timezone.now, db_column='start')
-    score = models.IntegerField(verbose_name=_('score'), default=0, db_index=True)
+    score = models.FloatField(verbose_name=_('score'), default=0, db_index=True)
     cumtime = models.PositiveIntegerField(verbose_name=_('cumulative time'), default=0)
     is_disqualified = models.BooleanField(verbose_name=_('is disqualified'), default=False,
                                           help_text=_('Whether this participation is disqualified.'))