class CreatePosts < ActiveRecord::Migration def change create_table :posts do |t| t.integer :user_id, null: false t.integer :forum_thread_id, null: false t.integer :post_number, null: false t.text :content, null: false t.text :formatted_content, null: false t.timestamps null: false end add_index :posts, [:forum_thread_id, :created_at] end end