misc: separate migration steps for remvoing fk and orphaned identities

backend/src/db/migrations/20251019061215_sub-org-identity-backfill.ts

@@ -38,11 +38,6 @@ export async function up(knex: Knex): Promise<void> {
             .merge();
         }
       }
-
-      await tx(TableName.Identity).whereNull("orgId").delete();
-      await tx.schema.alterTable(TableName.Identity, (t) => {
-        t.uuid("orgId").notNullable().alter();
-      });
     }
   });
 }

backend/src/db/migrations/20251028155708_identity-access-token-remove-fk-for-identity-id.ts

@@ -0,0 +1,22 @@
+import { Knex } from "knex";
+
+import { TableName } from "../schemas";
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.transaction(async (tx) => {
+    await tx.schema.alterTable(TableName.IdentityAccessToken, (table) => {
+      table.dropForeign("identityId");
+    });
+  });
+}
+
+export async function down(knex: Knex): Promise<void> {
+  await knex.transaction(async (tx) => {
+    await tx.schema.alterTable(TableName.IdentityAccessToken, (table) => {
+      table.foreign("identityId").references("id").inTable(TableName.Identity);
+    });
+  });
+}
+
+const config = { transaction: false };
+export { config };

backend/src/db/migrations/20251028160921_delete-no-org-identities.ts

@@ -0,0 +1,20 @@
+import { Knex } from "knex";
+
+import { TableName } from "../schemas";
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.transaction(async (tx) => {
+    const hasIdentityOrgCol = await tx.schema.hasColumn(TableName.Identity, "orgId");
+    if (hasIdentityOrgCol) {
+      await tx(TableName.Identity).whereNull("orgId").delete();
+      await tx.schema.alterTable(TableName.Identity, (t) => {
+        t.uuid("orgId").notNullable().alter();
+      });
+    }
+  });
+}
+
+export async function down(): Promise<void> {}
+
+const config = { transaction: false };
+export { config };