fix(models): make biosample.sampled_tissue field nullable

chord_metadata_service/phenopackets/migrations/0009_v6_1_0.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.7 on 2024-01-17 18:06
+
+import chord_metadata_service.restapi.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('phenopackets', '0008_v6_0_0'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='biosample',
+            name='sampled_tissue',
+            field=models.JSONField(blank=True, help_text='An ontology term describing the tissue from which the specimen was collected. The use of UBERON is recommended.', null=True, validators=[chord_metadata_service.restapi.validators.JsonSchemaValidator({'$id': '/chord_metadata_service/restapi/ontology_class', '$schema': 'http://json-schema.org/draft-07/schema#', 'additionalProperties': False, 'description': 'An ontology term.', 'help': 'An ontology term.', 'properties': {'id': {'$id': '/chord_metadata_service/restapi/ontology_class/id', 'description': 'A CURIE-style identifier for an ontology term.', 'help': 'A CURIE-style identifier for an ontology term.', 'type': 'string'}, 'label': {'$id': '/chord_metadata_service/restapi/ontology_class/label', 'description': 'A human readable class name for an ontology term.', 'help': 'A human readable class name for an ontology term.', 'type': 'string'}}, 'required': ['id', 'label'], 'title': 'Ontology class schema', 'type': 'object'}, formats=None)]),
+        ),
+    ]

chord_metadata_service/phenopackets/models.py

@@ -148,7 +148,8 @@ class Biosample(BaseExtraProperties, BaseTimeStamp, IndexableMixin):
         "self", on_delete=models.CASCADE, blank=True, null=True, related_name="derived_biosamples",
         help_text=rec_help(d.BIOSAMPLE, "derived_from_id"))
     description = models.CharField(max_length=200, blank=True, help_text=rec_help(d.BIOSAMPLE, "description"))
-    sampled_tissue = JSONField(validators=[ontology_validator], help_text=rec_help(d.BIOSAMPLE, "sampled_tissue"))
+    sampled_tissue = JSONField(blank=True, null=True, validators=[ontology_validator],
+                               help_text=rec_help(d.BIOSAMPLE, "sampled_tissue"))
     sample_type = JSONField(blank=True, null=True, validators=[ontology_validator],
                             help_text=rec_help(d.BIOSAMPLE, "sample_type"))