add migrate de metadata

sapl/base/migrations/0050_metadata.py

@@ -0,0 +1,31 @@
+# Generated by Django 2.2.20 on 2022-07-29 01:02
+
+import django.contrib.postgres.fields.jsonb
+import django.core.serializers.json
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contenttypes', '0002_remove_content_type_name'),
+        ('base', '0049_auto_20220728_2029'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Metadata',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('object_id', models.PositiveIntegerField(blank=True, default=None, null=True)),
+                ('metadata', django.contrib.postgres.fields.jsonb.JSONField(blank=True, default=None, encoder=django.core.serializers.json.DjangoJSONEncoder, null=True, verbose_name='Metadados')),
+                ('content_type', models.ForeignKey(blank=True, default=None, null=True, on_delete=django.db.models.deletion.PROTECT, to='contenttypes.ContentType')),
+            ],
+            options={
+                'verbose_name': 'Metadado',
+                'verbose_name_plural': 'Metadados',
+                'unique_together': {('content_type', 'object_id')},
+            },
+        ),
+    ]