From 1a2bef328b9735c61681e8efd643c3221d9ddc27 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jon=C3=A1=C5=A1=20Havelka?= <jonas.havelka@volny.cz>
Date: Tue, 21 Jan 2025 21:43:43 +0100
Subject: [PATCH] =?UTF-8?q?Inteligentn=C4=9Bj=C5=A1=C3=AD=20p=C5=99i=C5=99?=
 =?UTF-8?q?azov=C3=A1n=C3=AD=20seznamu=20p=C5=99edn=C3=A1=C5=A1ek=20hlasov?=
 =?UTF-8?q?=C3=A1tku=20a=20upozorn=C4=9Bn=C3=AD=20na=20neexistuj=C3=ADc?=
 =?UTF-8?q?=C3=AD=20seznam?=
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---
 prednasky/views.py                            | 10 +++++++++-
 .../0007_nastaveni_aktualni_sous.py           | 20 +++++++++++++++++++
 various/models.py                             |  5 +++++
 3 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 various/migrations/0007_nastaveni_aktualni_sous.py

diff --git a/prednasky/views.py b/prednasky/views.py
index 52302262..a2a2594c 100644
--- a/prednasky/views.py
+++ b/prednasky/views.py
@@ -1,3 +1,5 @@
+import http
+
 from django.shortcuts import render, get_object_or_404
 from django.views import generic
 from django.shortcuts import HttpResponseRedirect
@@ -7,14 +9,20 @@ from django.forms import Form
 
 from various.views.pomocne import formularOKView
 
+from various.models import Nastaveni
 from prednasky.models import Prednaska, Hlasovani, Seznam, STAV_NAVRH
 from soustredeni.models import Soustredeni
 from personalni.models import Osoba
 
 def newPrednaska(request):
 	# hlasovani se vztahuje k nejnovejsimu soustredeni
-	sous = Soustredeni.objects.first()
+	sous = Nastaveni.get_solo().aktualni_sous
 	seznam = Seznam.objects.filter(soustredeni = sous, stav = STAV_NAVRH).first()
+	if sous is None or seznam is None:
+		return render(request, 'universal.html', {
+			'title': "Nelze hlasovat",
+			'text': "Není žádný seznam přednášek, o kterém by se dalo hlasovat.",
+		}, status=http.HTTPStatus.NOT_FOUND)
 	osoba = Osoba.objects.filter(user=request.user).first()
 	ucastnik = osoba.plne_jmeno() + ' ' + str(osoba.id)
 	# obsluha formulare
diff --git a/various/migrations/0007_nastaveni_aktualni_sous.py b/various/migrations/0007_nastaveni_aktualni_sous.py
new file mode 100644
index 00000000..718aabd4
--- /dev/null
+++ b/various/migrations/0007_nastaveni_aktualni_sous.py
@@ -0,0 +1,20 @@
+# Generated by Django 4.2.16 on 2025-01-21 20:34
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('soustredeni', '0013_alter_soustredeni_kontaktnicek_pdf_and_more'),
+        ('various', '0006_tvorba_post'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='nastaveni',
+            name='aktualni_sous',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.PROTECT, to='soustredeni.soustredeni', verbose_name='Aktuálně připravovaný sous'),
+        ),
+    ]
diff --git a/various/models.py b/various/models.py
index 363c3137..b662b029 100644
--- a/various/models.py
+++ b/various/models.py
@@ -26,6 +26,11 @@ class Nastaveni(SingletonModel):
 									verbose_name="Účastnický poplatek za soustředění",
 									default=1000)
 
+	aktualni_sous = models.ForeignKey(
+		"soustredeni.Soustredeni", verbose_name='Aktuálně připravovaný sous',
+		null=True, blank=False, on_delete=models.PROTECT,
+	)
+
 	@property
 	def aktualni_rocnik(self):
 		return self.aktualni_cislo.rocnik