SAML: add flag to allow SAML with old dashboard (#12013)

We have an organization that hasn't migrated to their SAML integration
to the new dashboard, adding a flag so we don't wait on them to onboard
new organizations to the new dashboard.

ref readthedocs/readthedocs-corporate#1954

Author: stsewd

readthedocs/sso/migrations/0003_allow_saml_with_old_dashboard.py

@@ -0,0 +1,24 @@
+# Generated by Django 4.2.18 on 2025-02-20 16:26
+
+from django.db import migrations, models
+from django_safemigrate import Safe
+
+
+class Migration(migrations.Migration):
+    safe = Safe.before_deploy
+    dependencies = [
+        ("sso", "0002_add_saml_app"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="ssointegration",
+            name="using_old_dashboard",
+            field=models.BooleanField(
+                default=False,
+                null=True,
+                blank=True,
+                help_text="Whether the SSO integration is using the old dashboard for authentication. Mainly used for SAML integrations.",
+            ),
+        ),
+    ]

readthedocs/sso/models.py

@@ -8,7 +8,6 @@
 
 
 class SSOIntegration(models.Model):
-
     """Single Sign-On integration for an Organization."""
 
     PROVIDER_ALLAUTH = "allauth"
@@ -53,6 +52,15 @@ class SSOIntegration(models.Model):
         blank=True,
     )
 
+    using_old_dashboard = models.BooleanField(
+        default=False,
+        null=True,
+        blank=True,
+        help_text=(
+            "Whether the SSO integration is using the old dashboard for authentication. Mainly used for SAML integrations."
+        ),
+    )
+
     def __str__(self):
         return self.name or self.provider