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foreign_key_cascade

🔄 Add Cascading Foreign Keys​

Enforce referential integrity by adding foreign keys with ON DELETE/ON UPDATE actions. Rails migrations support the :on_delete and :on_update options. This helps avoid orphaned records and manual cleanup.

class AddCommentUserForeignKeyWithCascade < ActiveRecord::Migration[6.1]
  def change
    add_foreign_key :comments, :users, on_delete: :cascade, on_update: :cascade
  end
end