Are there destroy_all!/delete_all! in Rails?

No delete_all! or destroy_all! in Rails, but Rails has delete_all and destroy_all methods. Diference between these two methods are: delete_all only deletes the matching records with the given condition but doesn't delete the dependant/associated records where destroy_all deletes all the matching records along with their dependant/associated records. So, choose wisely between delete_all and destroy_all according to your need.

No, there are no methods called delete_all! or destroy_all!. See the documentation.

Use delete_all or destroy_all instead. These methods will raise ActiveRecord errors if deletion fails. It means your transaction will be rolled back in case of errors as you expected.

The source code of destroy_all is:

def destroy_all(conditions = nil)
 find(:all, :conditions => conditions).each { |object| object.destroy }
end 

and object.destroy will only return false not raise errors to trigger transaction when deletion fails.

So, May be we need use it like:

ActiveRecord::Base.transaction do 
  records.each(&:destroy!) 
end

Right?