class AddCreatedByToAssets < ActiveRecord::Migration[4.2] def change %i( assets checklists checklist_items my_module_groups my_module_tags my_modules teams projects tables tags ).each do |table_name| add_column table_name, :created_by_id, :integer add_index table_name, :created_by_id end %i( assets checklists checklist_items comments custom_fields my_modules teams projects reports results steps tables tags ).each do |table_name| add_column table_name, :last_modified_by_id, :integer add_index table_name, :last_modified_by_id end %i(my_modules projects results).each do |table_name| add_column table_name, :archived_by_id, :integer add_index table_name, :archived_by_id add_column table_name, :restored_by_id, :integer add_index table_name, :restored_by_id add_column table_name, :restored_on, :datetime end %i(user_my_modules user_teams user_projects).each do |table_name| add_column table_name, :assigned_by_id, :integer add_index table_name, :assigned_by_id end add_column :sample_my_modules, :assigned_on, :datetime end end