"Fossies" - the Fresh Open Source Software Archive

Member "grails-core-5.2.4/grails-docs/src/test/resources/docs/ref/Domain Classes/getDirtyPropertyNames.html" (14 Sep 2022, 59072 Bytes) of package /linux/www/grails-core-5.2.4.tar.gz:


Caution: In this restricted "Fossies" environment the current HTML page may not be correctly presentated and may have some non-functional links. You can here alternatively try to browse the pure source code or just view or download the uninterpreted raw source code. If the rendering is insufficient you may try to find and view the page on the grails-core-5.2.4.tar.gz project site itself.

(Quick Reference)

getDirtyPropertyNames

Purpose

Retrieve the names of modified fields in a domain class instance.

Examples

def b = Book.get(1)
someMethodThatMightModifyTheInstance(b)

def names = b.dirtyPropertyNames
for (name in names) {
    def originalValue = b.getPersistentValue(name)
    ...
}

Description

This method is useful mostly for audit logging or other work done in a beforeUpdate event callback. Hibernate caches the original state of all loaded instances for dirty checking during a flush and this method exposes the names of modified fields so you can compare them with the current state.