revert 2af5f750ad

revert fix 2

db/migrate/20240612000000_add_local_top_algorithm_support.rb

@@ -1,14 +1,14 @@
 # db/migrate/20240612000000_add_local_top_algorithm_support.rb
 class AddLocalTopAlgorithmSupport < ActiveRecord::Migration[8.0]
-  disable_ddl_transaction!
+  disable_ddl_transaction! # Allows concurrent operations
 
   def change
-    # Safe to add immediately
-    add_column :users, :feed_algorithm, :string, default: 'chronological'
-
-    # Add reference without foreign key constraint first
+    # 1. Add reference without immediate foreign key validation
     add_reference :statuses, :status_stat, 
-                 index: { algorithm: :concurrently },
-                 foreign_key: false
+      index: { algorithm: :concurrently }, # Concurrent index
+      foreign_key: { on_delete: :cascade, validate: false } # Defer validation
+
+    # 2. Add user preference column (safe operation)
+    add_column :users, :feed_algorithm, :string, default: 'chronological'
   end
 end