feat: endpoint, script and setting for auto-advance

pretalx_musicrate/forms.py

@@ -26,7 +26,12 @@ class MusicrateSettingsForm(I18nModelForm):
 
     class Meta:
         model = MusicrateSettings
-        fields = ("submission_types", "genre_question", "origin_question")
+        fields = (
+            "submission_types",
+            "genre_question",
+            "origin_question",
+            "advance_threshold",
+        )
         widgets = {
             "submission_types": forms.SelectMultiple(attrs={"class": "select2"}),
             "genre_question": forms.Select(attrs={"class": "select2"}),

pretalx_musicrate/migrations/0004_musicratesettings_advance_threshold.py

@@ -0,0 +1,21 @@
+# Generated by Django 4.2.8 on 2023-12-15 16:32
+
+from decimal import Decimal
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("pretalx_musicrate", "0003_musicratesettings_join_token"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="musicratesettings",
+            name="advance_threshold",
+            field=models.DecimalField(
+                decimal_places=2, default=Decimal("0.6"), max_digits=3
+            ),
+        ),
+    ]

pretalx_musicrate/models.py

@@ -1,3 +1,4 @@
+from decimal import Decimal
 from secrets import token_urlsafe
 
 from django.db import models
@@ -40,3 +41,12 @@ class MusicrateSettings(models.Model):
         null=True,
     )
     join_token = models.CharField(max_length=43, default=generate_token)
+    advance_threshold = models.DecimalField(
+        max_digits=3,
+        decimal_places=2,
+        default=Decimal("0.6"),
+        help_text=_(
+            "The fraction of jurors that has to submit a rating before the presenter view automatically advances to the next submission."
+        ),
+        verbose_name=_("Advance Threshold"),
+    )

pretalx_musicrate/static/pretalx_musicrate/may-advance.js

@@ -0,0 +1,16 @@
+const mayAdvance = (callback) =>
+    fetch("may-advance?")
+    .then(response => response.json())
+    .then(mayAdvance => {
+        if (mayAdvance === true) {
+            callback();
+        }
+    });
+const timeout = setTimeout(() => {
+    setInterval(() => {
+        mayAdvance(() => {
+            location = document.getElementById("next").href;
+        });
+    }, 3000);
+}, 3000);
+mayAdvance(() => clearTimeout(timeout));

pretalx_musicrate/templates/pretalx_musicrate/present.html

@@ -1,4 +1,11 @@
 {% extends "pretalx_musicrate/submission_base.html" %}
+{% load compress %}
+{% load static %}
 
 {% block submission_content %}
+    {% if next %}
+        {% compress js %}
+            <script src="{% static "pretalx_musicrate/may-advance.js" %}"></script>
+        {% endcompress %}
+    {% endif %}
 {% endblock %}

pretalx_musicrate/templates/pretalx_musicrate/settings.html

@@ -12,6 +12,7 @@
         {% bootstrap_field form.submission_types layout='event' %}
         {% bootstrap_field form.genre_question layout='event' %}
         {% bootstrap_field form.origin_question layout='event' %}
+        {% bootstrap_field form.advance_threshold layout='event' %}
         {% include "orga/includes/submit_row.html" %}
     </form>
 {% endblock %}

pretalx_musicrate/templates/pretalx_musicrate/submission_base.html

@@ -47,7 +47,7 @@
             {{ index }}/{{ count }}
         {% endif %}
         {% if next and can_continue %}
-            <a href="{{ next }}">{% translate "Next" %} &gt;</a>
+            <a href="{{ next }}" id="next">{% translate "Next" %} &gt;</a>
         {% else %}
             <a></a>
         {% endif %}

pretalx_musicrate/urls.py

@@ -1,6 +1,12 @@
 from django.urls import include, path
 
-from .views import JoinView, MusicrateSettingsView, PresenterView, QRCodeView
+from .views import (
+    JoinView,
+    MayAdvanceView,
+    MusicrateSettingsView,
+    PresenterView,
+    QRCodeView,
+)
 
 urlpatterns = [
     path(
@@ -14,6 +20,11 @@ urlpatterns = [
             [
                 path("", QRCodeView.as_view(), name="qrcode"),
                 path("present/<code>/", PresenterView.as_view(), name="present"),
+                path(
+                    "present/<code>/may-advance",
+                    MayAdvanceView.as_view(),
+                    name="may_advance",
+                ),
                 path("<slug:token>/", JoinView.as_view(), name="join"),
             ]
         ),

pretalx_musicrate/views.py

@@ -4,11 +4,12 @@ from operator import itemgetter
 from django.contrib import messages
 from django.db.models import F, Max, Min, Window
 from django.db.models.functions import RowNumber
+from django.http import JsonResponse
 from django.shortcuts import redirect
 from django.urls import reverse
 from django.utils.functional import cached_property
 from django.utils.translation import gettext_lazy as _
-from django.views.generic import FormView, TemplateView
+from django.views.generic import FormView, TemplateView, View
 from django.views.generic.detail import SingleObjectMixin
 from django_context_decorator import context
 from pretalx.common.mixins.views import EventPermissionRequired
@@ -189,3 +190,10 @@ class PresenterView(EventPermissionRequired, SubmissionMixin, TemplateView):
     def get(self, request, *args, **kwargs):
         self.object = self.get_object()
         return super().get(request, *args, **kwargs)
+
+
+class MayAdvanceView(EventPermissionRequired, View):
+    permission_required = "orga.view_submissions"
+
+    def get(self, request, *args, **kwargs):
+        return JsonResponse(True, safe=False)