skipped_classes = ['Group', 'User']
ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
if !skipped_classes.include?(klass.name) && klass.columns.collect(&:name).include?('owner_uuid')
skipped_classes = ['Group', 'User']
ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
if !skipped_classes.include?(klass.name) && klass.columns.collect(&:name).include?('owner_uuid')