src/documents/migrations/0019_fk_uses_id.py

   1 # Generated by Django 4.1.9 on 2024-10-15 14:23
   2
   3 from django.db import migrations
   4
   5
   6 def copy_slug_to_fk(apps, schema_editor):
   7     cBook = apps.get_model('catalogue', 'Book')
   8     dBook = apps.get_model('documents', 'Book')
   9
  10     for db in dBook.objects.all():
  11         try:
  12             cb = db.dc_slug
  13         except cBook.DoesNotExist:
  14             pass
  15         else:
  16             if cb is not None:
  17                 db.catalogue_book = cb
  18                 db.save()
  19
  20
  21 class Migration(migrations.Migration):
  22
  23     dependencies = [
  24         ("documents", "0018_book_catalogue_book_alter_book_catalogue_book_slug"),
  25     ]
  26
  27     operations = [
  28         migrations.RunPython(
  29             copy_slug_to_fk,
  30             migrations.RunPython.noop,
  31         )
  32     ]