Opravná migrace, protože to prostě nefungovalo

Kdyby to byl býval RunSQL, byl to oneliner...

seminar/migrations/0059_vytvorit_pohadkanode.py

@@ -21,7 +21,7 @@ def vytvor_pohadkanode(apps, schema_editor):
 class Migration(migrations.Migration):
 
 	dependencies = [
-		('seminar', '0058_problem_to_uloha_tema_clanek'),
+		('seminar', 'fix_0058'),
 	]
 
 	operations = [

seminar/migrations/fix_0058.py

@@ -0,0 +1,19 @@
+from django.db import migrations
+
+def oprav_ulohy(apps, schema_editor):
+	Problem = apps.get_model('seminar', 'Pohadka')
+
+	for p in Problem.objects.filter(typ="b'uloha'"):
+		p.typ = "uloha"
+		p.save()
+
+class Migration(migrations.Migration):
+
+	dependencies = [
+		('seminar', '0058_problem_to_uloha_tema_clanek'),
+	]
+
+	operations = [
+		migrations.RunPython(oprav_ulohy, oprav_ulohy),
+	]
+