Backfill block deactivates_at

db/migrate/20240822121603_backfill_deactivates_at_in_user_blocks.rb

@@ -0,0 +1,11 @@
+class BackfillDeactivatesAtInUserBlocks < ActiveRecord::Migration[7.1]
+  class UserBlock < ApplicationRecord; end
+
+  disable_ddl_transaction!
+
+  def up
+    UserBlock.where(:needs_view => false, :deactivates_at => nil).in_batches do |relation|
+      relation.update_all("deactivates_at = GREATEST(ends_at, updated_at)")
+    end
+  end
+end