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Fix migration when adding uuids #1716

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merged 3 commits into from
Mar 4, 2022
Merged

Fix migration when adding uuids #1716

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10c40dc
Fix migration
rolisz Mar 3, 2022
d537640
Black formatting
rolisz Mar 3, 2022
f6a556b
Update migration when adding uuids
Hironsan Mar 4, 2022
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13 changes: 12 additions & 1 deletion backend/api/migrations/0017_example_uuid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,13 @@
from django.db import migrations, models


def create_uuid(apps, schema_editor):
Example = apps.get_model("api", "example")
for example in Example.objects.all():
example.uuid = uuid.uuid4()
example.save(update_fields=["uuid"])


class Migration(migrations.Migration):

dependencies = [
Expand All @@ -15,6 +22,10 @@ class Migration(migrations.Migration):
migrations.AddField(
model_name="example",
name="uuid",
field=models.UUIDField(db_index=True, default=uuid.uuid4, editable=False, unique=True),
field=models.UUIDField(editable=False, blank=True, null=True),
),
migrations.RunPython(create_uuid, reverse_code=migrations.RunPython.noop),
migrations.AlterField(
model_name="example", name="uuid", field=models.UUIDField(default=uuid.uuid4, db_index=True, unique=True)
),
]