class ChangeRelatToString < ActiveRecord::Migration[7.0] def up change_table :case_logs, bulk: true do |t| t.remove :relat2 t.column :relat2, :string t.remove :relat3 t.column :relat3, :string t.remove :relat4 t.column :relat4, :string t.remove :relat5 t.column :relat5, :string t.remove :relat6 t.column :relat6, :string t.remove :relat7 t.column :relat7, :string t.remove :relat8 t.column :relat8, :string end end def down change_table :case_logs, bulk: true do |t| t.remove :relat2 t.column :relat2, :integer t.remove :relat3 t.column :relat3, :integer t.remove :relat4 t.column :relat4, :integer t.remove :relat5 t.column :relat5, :integer t.remove :relat6 t.column :relat6, :integer t.remove :relat7 t.column :relat7, :integer t.remove :relat8 t.column :relat8, :integer end end end