sources/saml: add POST_AUTO binding which auto redirects to IdP

passbook/sources/saml/migrations/0004_auto_20200708_1207.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.8 on 2020-07-08 12:07
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('passbook_sources_saml', '0003_auto_20200624_1957'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='samlsource',
+            name='binding_type',
+            field=models.CharField(choices=[('REDIRECT', 'Redirect Binding'), ('POST', 'POST Binding'), ('POST_AUTO', 'POST Binding with auto-confirmation')], default='REDIRECT', max_length=100),
+        ),
+    ]