88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
# (Partially) Generated by Django 4.0.2 on 2022-02-04 18:01
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import django.db.models.deletion
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from django.db import migrations, models
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def migrate_certification_version_forward(apps, schema_editor):
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db_alias = schema_editor.connection.alias
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Certification = apps.get_model("paperwork", "Certification")
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CertificationVersion = apps.get_model("paperwork", "CertificationVersion")
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for certification in Certification.objects.using(db_alias).all():
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(version, _) = CertificationVersion.objects.using(db_alias).get_or_create(
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definition=certification.certification, version=certification.version
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)
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certification.certification_version = version
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certification.save()
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class Migration(migrations.Migration):
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dependencies = [
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("paperwork", "0001_initial"),
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]
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operations = [
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migrations.CreateModel(
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name="CertificationVersion",
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fields=[
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(
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"id",
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models.AutoField(
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auto_created=True,
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primary_key=True,
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serialize=False,
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verbose_name="ID",
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),
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),
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(
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"version",
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models.CharField(
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blank=True, db_column="Version", max_length=255, null=True
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),
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),
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(
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"definition",
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models.ForeignKey(
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db_column="Certification",
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on_delete=django.db.models.deletion.PROTECT,
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to="paperwork.certificationdefinition",
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),
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),
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],
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),
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migrations.AddConstraint(
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model_name="certificationversion",
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constraint=models.UniqueConstraint(
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fields=("definition", "version"), name="unique_certification_version"
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),
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),
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migrations.AddField(
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model_name="certification",
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name="certification_version",
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field=models.ForeignKey(
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on_delete=django.db.models.deletion.PROTECT,
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to="paperwork.certificationversion",
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null=True,
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),
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),
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migrations.RunPython(migrate_certification_version_forward),
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migrations.AlterField(
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model_name="certification",
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name="certification_version",
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field=models.ForeignKey(
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on_delete=django.db.models.deletion.PROTECT,
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to="paperwork.certificationversion",
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),
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),
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migrations.RemoveField(
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model_name="certification",
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name="certification",
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),
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migrations.RemoveField(
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model_name="certification",
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name="version",
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),
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]
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