def b = Book.get(1)
b.title = "Blah"
b.discard() // changes won't be applied nowdiscard
Purpose
Discards any changes that have been made to a persistent instance.
Examples
Description
The discard method informs the persistence context that the instance should not be saved. The discard method is equivalent to using Hibernate’s evict method.
| Note that this method will not clean or reset the object with the original values; it will just prevent it from being automatically saved by Grails. |