Store the BBB link in the Pool model

apps/participation/forms.py

@@ -143,7 +143,7 @@ class SolutionForm(forms.ModelForm):
 class PoolForm(forms.ModelForm):
     class Meta:
         model = Pool
-        fields = ('tournament', 'round', 'juries',)
+        fields = ('tournament', 'round', 'bbb_code', 'juries',)
         widgets = {
             "juries": forms.CheckboxSelectMultiple,
         }

apps/participation/management/commands/fix_matrix_channels.py

@@ -321,7 +321,7 @@ class Command(BaseCommand):
                 Matrix.set_room_avatar(f"#poule-{slug}-{pool.id}:tfjm.org", avatar_uri)
                 Matrix.set_room_avatar(f"#poule-{slug}-{pool.id}-jurys:tfjm.org", avatar_uri)
 
-                url_params = urlencode(dict(url="https://visio.animath.live/b/XXX-XXX-XXX",
+                url_params = urlencode(dict(url=f"https://visio.animath.live/b/{pool.bbb_code}",
                                             isAudioConf='false', displayName='$matrix_display_name',
                                             avatarUrl='$matrix_avatar_url', userId='$matrix_user_id')) \
                     .replace("%24", "$")

apps/participation/migrations/0012_pool_bbb_code.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.11 on 2021-01-21 16:47
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('participation', '0011_note'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='pool',
+            name='bbb_code',
+            field=models.CharField(blank=True, default='', help_text='The code of the form xxx-xxx-xxx at the end of the BBB link.', max_length=11, validators=[django.core.validators.RegexValidator('[a-z]{3}-[a-z]{3}-[a-z]{3}')], verbose_name='BigBlueButton code'),
+        ),
+    ]

apps/participation/models.py

@@ -344,6 +344,15 @@ class Pool(models.Model):
         verbose_name=_("juries"),
     )
 
+    bbb_code = models.CharField(
+        max_length=11,
+        blank=True,
+        default="",
+        verbose_name=_("BigBlueButton code"),
+        help_text=_("The code of the form xxx-xxx-xxx at the end of the BBB link."),
+        validators=[RegexValidator("[a-z]{3}-[a-z]{3}-[a-z]{3}")],
+    )
+
     @property
     def solutions(self):
         return Solution.objects.filter(participation__in=self.participations, final_solution=self.tournament.final)