CODEWITHSUNDEEP
grails
John Moore
John Moore

Reputation: 7129

Grails 4 replacement for DefaultGrailsDomainClass?

I'm recreating a working Grails 2.2.5 application in Grails 4 in order to get to know the new version (with the view to migrating all 2.2.x apps over in due course). So far I've only moved a handful of Groovy classes from the src directory over, but I'm running into a compile problem with a class which is apparently no longer present in Grails 4, org.codehaus.groovy.grails.commons.DefaultGrailsDomainClass. I use this to iterate through the persistent properties of a domain class (with persistentProperties). How would I do this in Grails 4? I.e., get all the persistent properties of a domain class?

Upvotes: 3

Views: 1124

Answers (2)

Maicon Mauricio
Maicon Mauricio

Reputation: 3061

Read my answer on this other thread:

1. YourDomain.gormPersistentEntity.persistentProperties

2. Inject grailsApplication

grailsApplication.mappingContext.getPersistentEntity(YourDomain.class.name).persistentProperties

3. Inject grailsDomainClassMappingContext

grailsDomainClassMappingContext.getPersistentEntity(YourDomain.class.name).persistentProperties

Upvotes: 0

Hildeberto Mendonca
Hildeberto Mendonca

Reputation: 133

DefaultGrailsDomainClass is indeed deprecated since Grails 3.3.2 in favor of the mapping context API. Fortunately, it is quite straightforward to replace the deprecated implementation.

Inject the grailsDomainClassMappingContext bean in your service or controller:

def grailsDomainClassMappingContext

then get the persistent entity by providing its name:

def entity = grailsDomainClassMappingContext.getPersistentEntity(domainObjName)

where domainObjName is a string and entity is an instance of org.grails.datastore.mapping.model.PersistentEntity. You can also get a specific property by using:

def property = entity.getPropertyByName(propertyName)

where propertyName is a string and property is an instance of org.grails.datastore.mapping.model.PersistentProperty.

The interfaces PersistentEntity and PersistentProperty offer a variety of useful methods to cover many uses.

Upvotes: 3

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