class CreateIncomingLinks < ActiveRecord::Migration def change create_table :incoming_links do |t| t.integer :site_id, null: false t.string :url, limit: 1000, null: false t.string :referer, limit: 1000, null: false t.string :domain, limit: 100, null: false t.integer :forum_thread_id, null: true t.integer :post_number, null: true t.timestamps null: false end add_index :incoming_links, [:site_id, :forum_thread_id, :post_number], name: 'incoming_index' end end