Fix: made brand nullable

asset/migrations/0004_alter_gtinproduct_brand.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.0.3 on 2022-04-13 14:58
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('asset', '0003_gtinproduct'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='gtinproduct',
+            name='brand',
+            field=models.CharField(blank=True, max_length=40, null=True),
+        ),
+    ]

asset/models.py

@@ -33,7 +33,7 @@ class GtinProduct(models.Model):
     api_request = models.CharField(max_length=250)
     api_response = models.CharField(max_length=4096)
     name = models.CharField(max_length=200, blank=True)
-    brand = models.CharField(max_length=40, blank=True)
+    brand = models.CharField(max_length=40, blank=True, null=True)
     created_ts = models.DateTimeField('datetime created', auto_now_add=True)
     changed_ts = models.DateTimeField('datetime updated', auto_now=True)