Add JSON support for product description

uncloud_pay/migrations/0018_order_product.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.1 on 2020-09-28 19:08
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_pay', '0017_order_config'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='order',
+            name='product',
+            field=models.ForeignKey(default=0, on_delete=django.db.models.deletion.CASCADE, to='uncloud_pay.product'),
+            preserve_default=False,
+        ),
+    ]