🎨 Update

findrefs/migrations/0002_alter_artifactreference_artifact_and_more.py

@@ -1,11 +1,12 @@
-# Generated by Django 5.2 on 2024-11-14 21:08
+# Generated by Django 5.2 on 2024-11-15 12:53
 
+import django.core.validators
 import django.db.models.deletion
 import lnschema_core.fields
 import lnschema_core.ids
 import lnschema_core.models
 import lnschema_core.users
-from django.db import migrations
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
@@ -124,7 +125,17 @@ class Migration(migrations.Migration):
             model_name="reference",
             name="doi",
             field=lnschema_core.fields.CharField(
-                blank=True, db_index=True, default=None, max_length=255, null=True
+                blank=True,
+                db_index=True,
+                default=None,
+                max_length=255,
+                null=True,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        message="Must be a DOI (e.g., 10.1000/xyz123 or https://doi.org/10.1000/xyz123)",
+                        regex="^(?:https?://(?:dx\\.)?doi\\.org/|doi:|DOI:)?10\\.\\d+/.*$",
+                    )
+                ],
             ),
         ),
         migrations.AlterField(
@@ -137,9 +148,7 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name="reference",
             name="pubmed_id",
-            field=lnschema_core.fields.BigIntegerField(
-                blank=True, default=None, null=True
-            ),
+            field=lnschema_core.fields.BigIntegerField(blank=True, null=True),
         ),
         migrations.AlterField(
             model_name="reference",
@@ -173,4 +182,9 @@ class Migration(migrations.Migration):
             name="updated_at",
             field=lnschema_core.fields.DateTimeField(auto_now=True, db_index=True),
         ),
+        migrations.AlterField(
+            model_name="reference",
+            name="url",
+            field=models.URLField(blank=True, null=True),
+        ),
     ]

findrefs/models.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from django.core.validators import RegexValidator
 from django.db import models
 from django.db.models import CASCADE, PROTECT
 from lnschema_core import ids
@@ -47,11 +48,20 @@ class Meta(Record.Meta, TracksRun.Meta, TracksUpdates.Meta):
         null=True,
     )
     """A unique abbreviation for the reference."""
-    url: str | None = models.URLField(null=True)
+    url: str | None = models.URLField(null=True, blank=True)
     """URL linking to the reference."""
     pubmed_id: int | None = BigIntegerField(null=True)
     """A PudMmed ID."""
-    doi: int | None = CharField(null=True, db_index=True)
+    doi: int | None = CharField(
+        null=True,
+        db_index=True,
+        validators=[
+            RegexValidator(
+                regex=r"^(?:https?://(?:dx\.)?doi\.org/|doi:|DOI:)?10\.\d+/.*$",
+                message="Must be a DOI (e.g., 10.1000/xyz123 or https://doi.org/10.1000/xyz123)",
+            )
+        ],
+    )
     """Digital Object Identifier (DOI) for the reference."""
     text: str | None = TextField(null=True)
     """Text of the reference such as the abstract or the full-text to enable search."""