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fix incorrect removal of uniqueness constraint code field

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This commit is contained in:
Anatoly 2019-12-12 12:40:07 +03:00
parent 28bf782731
commit ea2eb666d4
1 changed files with 24 additions and 2 deletions
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26
apps/location/migrations/0031_auto_20191121_1236.py
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@ -6,6 +6,16 @@ import django.db.models.deletion
import utils.models
def copy_country_code(apps, schema_editor):
Country = apps.get_model('location', 'Country')
to_update = []
for country in Country.objects.all():
if country.code:
country.code_2 = country.code
to_update.append(country)
Country.objects.bulk_update(to_update, ['code_2', ])
class Migration(migrations.Migration):
dependencies = [
@ -63,9 +73,21 @@ class Migration(migrations.Migration):
name='region',
field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='location.Region', verbose_name='parent region'),
),
migrations.AlterField(
# -- fix incorrect removal of uniqueness constraint code field
migrations.AddField(
model_name='country',
name='code_2',
field=models.CharField(max_length=255, null=True)
),
migrations.RunPython(copy_country_code, migrations.RunPython.noop),
migrations.RemoveField(
model_name='country',
name='code',
field=models.CharField(max_length=255, verbose_name='Code'),
),
migrations.RenameField(
model_name='country',
old_name='code_2',
new_name='code',
)
# fix incorrect removal of uniqueness constraint code field --
]