Merge pull request #10503 from cslzchen/feature/cedar-integration

[ENG-4853] Create `CedarMetadataRecord` model to connect metadata to OSF objects

osf/migrations/0018_cedarmetadatarecord.py

@@ -0,0 +1,34 @@
+# Generated by Django 3.2.17 on 2023-12-14 17:06
+
+from django.db import migrations, models
+import django.db.models.deletion
+import django_extensions.db.fields
+import osf.models.base
+import osf.utils.datetime_aware_jsonfield
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('osf', '0017_cedarmetadatatemplate'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CedarMetadataRecord',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', django_extensions.db.fields.CreationDateTimeField(auto_now_add=True, verbose_name='created')),
+                ('modified', django_extensions.db.fields.ModificationDateTimeField(auto_now=True, verbose_name='modified')),
+                ('_id', models.CharField(db_index=True, default=osf.models.base.generate_object_id, max_length=24, unique=True)),
+                ('metadata', osf.utils.datetime_aware_jsonfield.DateTimeAwareJSONField(default=dict, encoder=osf.utils.datetime_aware_jsonfield.DateTimeAwareJSONEncoder)),
+                ('is_published', models.BooleanField(default=False)),
+                ('guid', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='osf.guid')),
+                ('template', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='osf.cedarmetadatatemplate')),
+            ],
+            options={
+                'unique_together': {('guid', 'template')},
+            },
+            bases=(models.Model, osf.models.base.QuerySetExplainMixin),
+        ),
+    ]

osf/models/cedar_metadata.py

@@ -16,3 +16,17 @@ class Meta:
 
     def __unicode__(self):
         return f'(name=[{self.schema_name}], version=[{self.template_version}], id=[{self.cedar_id}])'
+
+
+class CedarMetadataRecord(ObjectIDMixin, BaseModel):
+
+    guid = models.ForeignKey('Guid', on_delete=models.CASCADE)
+    template = models.ForeignKey('CedarMetadataTemplate', on_delete=models.CASCADE)
+    metadata = DateTimeAwareJSONField(default=dict)
+    is_published = models.BooleanField(default=False)
+
+    class Meta:
+        unique_together = ('guid', 'template')
+
+    def __unicode__(self):
+        return f'(guid=[{self.guid._id}], template=[{self.template._id}])'