Migrace pohádky (změna typu fieldu)

seminar/migrations/0060_oprav_pohadku.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-05-29 03:26
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+def oprav_pohadku(apps, schema_editor):
+	Pohadka = apps.get_model('seminar', 'Pohadka')
+
+	for p in Pohadka.objects.all():
+		if p.uloha_old:
+			p.uloha = p.uloha_old.uloha	# Pokud to nebyla úloha, vyhodí Uloha.DoesNotExists výjimku.
+
+class Migration(migrations.Migration):
+
+	dependencies = [
+		('seminar', '0059_spoj_stromy'),
+	]
+
+	operations = [
+		migrations.RunPython(oprav_pohadku),
+	]

seminar/migrations/0061_kill_frankenstein.py

@@ -10,7 +10,7 @@ import django.utils.timezone
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('seminar', '0059_spoj_stromy'),
+        ('seminar', '0060_oprav_pohadku'),
     ]
 
     operations = [
@@ -42,10 +42,10 @@ class Migration(migrations.Migration):
             model_name='pohadka',
             name='autor_old',
         ),
-#        migrations.RemoveField(
-#            model_name='pohadka',
-#            name='uloha_old',
-#        ),
+        migrations.RemoveField(
+            model_name='pohadka',
+            name='uloha_old',
+        ),
         migrations.RemoveField(
             model_name='problem',
             name='autor_old',