class SiteSettingCommaToPipe < ActiveRecord::Migration def up execute <<SQL UPDATE site_settings SET value = replace(value, ',', '|') WHERE name = 'white_listed_spam_host_domains' ; SQL execute <<SQL UPDATE site_settings SET value = replace(value, ',', '|') WHERE name = 'exclude_rel_nofollow_domains' ; SQL end def down execute <<SQL UPDATE site_settings SET value = replace(value, '|', ',') WHERE name = 'white_listed_spam_host_domains' ; SQL execute <<SQL UPDATE site_settings SET value = replace(value, '|', ',') WHERE name = 'exclude_rel_nofollow_domains' ; SQL end end