From 67e107a9eceb44842178ce2acca14e799875d48f Mon Sep 17 00:00:00 2001
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Date: Wed, 17 Jun 2020 19:56:00 +0000
Subject: [PATCH] =?UTF-8?q?P=C5=99id=C3=A1no=20=C4=8D=C3=ADslo=20ke=20?=
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---
 seminar/migrations/0084_clanek_cislo.py | 43 +++++++++++++++++++++++++
 seminar/models.py                       |  5 ++-
 2 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 seminar/migrations/0084_clanek_cislo.py

diff --git a/seminar/migrations/0084_clanek_cislo.py b/seminar/migrations/0084_clanek_cislo.py
new file mode 100644
index 00000000..03a8ff51
--- /dev/null
+++ b/seminar/migrations/0084_clanek_cislo.py
@@ -0,0 +1,43 @@
+# Generated by Django 2.2.13 on 2020-06-17 19:06
+
+from django.db import migrations, models
+import django.db.models.deletion
+from seminar.treelib import get_parent
+
+def najdi_cislo(apps, schema_editor):
+	#
+	Clanek = apps.get_model('seminar', 'Clanek')
+	Hodnoceni = apps.get_model('seminar', 'Hodnoceni')
+	Reseni = apps.get_model('seminar', 'Reseni')
+	ReseniNode = apps.get_model('seminar', 'ReseniNode')
+	CisloNode = apps.get_model('seminar', 'CisloNode')
+	
+	for c in Clanek.objects.all():
+		reseni = c.reseni_set
+		if (len(reseni) != 1):
+			raise ValueError("Článek k sobě má nejedno řešení!")
+		r = reseni[0]
+		aktualniNode = r.reseninode
+		while aktualniNode is not None:
+			if isinstance(aktualniNode, CisloNode):
+				c.cislo = aktualniNode.cislo
+				c.save()
+				break
+			aktualniNode = get_parent()
+		
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('seminar', '0083_auto_20200506_1952'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='clanek',
+            name='cislo',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='vydane_clanky', to='seminar.Cislo', verbose_name='číslo vydání'),
+        ),
+	migrations.RunPython(najdi_cislo),
+    ]
diff --git a/seminar/models.py b/seminar/models.py
index 63d4a7b1..91eff9b3 100644
--- a/seminar/models.py
+++ b/seminar/models.py
@@ -733,7 +733,7 @@ class Problem(SeminarModelBase,PolymorphicModel):
 		# FIXME: Tohle se liší podle typu problému, má se udělat polymorfně.
 		# Zatím je tu jen dummy fail-safe default: nic není veřejné.
 		return False
-                # FIXME: Tohle je blbost
+		# FIXME: Tohle je blbost
 		return (self.cislo_zadani and self.cislo_zadani.verejne())
 	verejne.boolean = True
 
@@ -795,6 +795,9 @@ class Clanek(Problem):
 		verbose_name = 'Článek'
 		verbose_name_plural = 'Články'
 	
+	cislo = models.ForeignKey(Cislo, blank=True, null=True, on_delete=models.PROTECT,
+		verbose_name='číslo vydání', related_name='vydane_clanky')
+
 	def kod_v_rocniku(self):
 		if self.stav == 'zadany':
 # Nemělo by být potřeba