models: add restricted-valueset attribute elements (#86937)

src/authentic2/migrations/0051_attributerestrictedvaluesetelement.py

@@ -0,0 +1,41 @@
+# Generated by Django 3.2.18 on 2024-03-06 09:22
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('authentic2', '0050_initialize_users_advanced_configuration'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='AttributeRestrictedValueSetElement',
+            fields=[
+                (
+                    'id',
+                    models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID'),
+                ),
+                ('serialized_content', models.TextField(verbose_name='Serialized value')),
+                ('displayed_label', models.CharField(max_length=255, verbose_name='Displayed label')),
+                ('name', models.CharField(max_length=255, verbose_name='Element name')),
+                (
+                    'attribute',
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name='valueset_elements',
+                        to='authentic2.attribute',
+                        verbose_name='attribute',
+                    ),
+                ),
+            ],
+            options={
+                'unique_together': {
+                    ('attribute', 'serialized_content'),
+                    ('attribute', 'name'),
+                    ('attribute', 'displayed_label'),
+                },
+            },
+        ),
+    ]

src/authentic2/models.py

@@ -146,6 +146,26 @@ class LogoutUrl(LogoutUrlAbstract):
         verbose_name_plural = _('logout URL')
 
 
+class AttributeRestrictedValueSetElement(models.Model):
+    attribute = models.ForeignKey(
+        'Attribute', verbose_name=_('attribute'), on_delete=models.CASCADE, related_name='valueset_elements'
+    )
+    serialized_content = models.TextField(verbose_name=_('Serialized value'))
+    displayed_label = models.CharField(verbose_name=_('Displayed label'), max_length=255)
+    name = models.CharField(verbose_name=_('Element name'), max_length=255)
+
+    def to_python(self):
+        deserialize = self.attribute.get_kind()['deserialize']
+        return deserialize(self.content)
+
+    class Meta:
+        unique_together = (
+            ('attribute', 'name'),
+            ('attribute', 'displayed_label'),
+            ('attribute', 'serialized_content'),
+        )
+
+
 class Attribute(models.Model):
     label = models.CharField(verbose_name=_('label'), max_length=63, unique=True)
     description = models.TextField(verbose_name=_('description'), blank=True)