and Keys#attribute (this way plugins that override read_key don't also have to override those methods)
…ields = false). Closes #476.
…cur. Note: this does not use ActiveModel::Dirty as ActiveModel::Dirty doesn't find in place changes (such as appending to an array or calling gsub! on a string). Partial Updates can be turned on or off per class (by default they are off): class Person include MongoMapper::Document self.partial_updates = false end
…n, :counter_cache => true