How to check if a PersistenProperty is a constrained property in groovy?

Question

I am new to grails, and I am having a problem on how to check if a persistent property is constrained in Grails 6 :

List<PersistentProperty> persistentProperties = grailsApplication.mappingContext.getPersistentEntity("Entity").persistentProperties List constrainedProperties = persistentProperties.find { isContrainedProperty(it) }

Please help me in writing the method "isContrainedProperty(it)"

Thanks!

Expect : writing a method that checks if given PersistentProperty is contrained in Grails 6

John Lear · Accepted Answer · 2024-01-19 16:48:58Z

I found that the constraints block is processed into a property called 'constrainedProperties' on the PersistentEntity objects javaClass.

So in your example:

PersistentEntity e = grailsApplication.mappingContext.getPersistentEntity('Entity') Map constraints = e.javaClass.constrainedProperties

Gives you a map of all the constraints on the object where the keys are the names of the properties, the values are of type ConstrainedProperty http://gorm.grails.org/latest/api//grails/gorm/validation/ConstrainedProperty.html

From here I expect you can find the information you are looking for.

I realize this solution is going behind the scenes of Grails a little bit but I haven't found a better way to find out this information.

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