Web M&M
https://mam.matfyz.cz
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.3 KiB
44 lines
1.3 KiB
4 years ago
|
# 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),
|
||
|
|
]
|