Migration Thoughts for New Coast

gistfile1.txt

# rails generate migration AddUserIdToTaggings user:integer:index
# rails generate migration AddInvestorIdToTaggings investor:integer:index

class AddUserIdToTaggings < ActiveRecord::Migration[5.0]
  def change
    add_index :taggings, :user
  end
end

class AddInvestorIdToTaggings < ActiveRecord::Migration[5.0]
  def change
    add_index :taggings, :investor
  end
end