Destroying records is a one-way ticket--you are permanently sending data down the drain. Unless, of course, you are using this plugin.
Simply declare models paranoid:
class User < ActiveRecord::Base
is_paranoid
end
You will need to add the "deleted_at" datetime column on each model table you declare paranoid. This is how the plugin tracks destroyed state.
Calling destroy
should work as you expect, only it doesn't actually delete the record:
User.count #=> 1
User.first.destroy
User.count #=> 0
# user is still there, only hidden:
User.count_with_destroyed #=> 1
What destroy
does is that it sets the "deleted_at" column to the current time.
Records that have a value for "deleted_at" are considered deleted and are filtered
out from all requests using default_scope
ActiveRecord feature:
default_scope :conditions => {:deleted_at => nil}
No sense in keeping the data if we can't restore it, right?
user = User.find_with_destroyed(:first)
user.restore
User.count #=> 1
Restoring resets the "deleted_at" value back to nil
.
Extra class methods provided by this plugin are:
Model.count_with_destroyed(*args)
Model.find_with_destroyed(*args)
Model.find_only_destroyed(*args)
validates_uniqueness_of
does not ignore items marked with a "deleted_at" flag- various eager-loading and associations-related issues (see "Killing is_paranoid")