Grails - grails.converters.JSON - removing the class name

Question

Is there a way to remove the class field in a JSON converter?

Example:

import testproject.*
import grails.converters.*  
emp = new Employee()  
emp         


        

Answer 1

def a = Employee.list()

String[] excludedProperties=['class', 'metaClass']
render(contentType: "text/json") {
    employees = array {
        a.each {
            employee it.properties.findAll { k,v -> !(k in excludedProperties) }
        }
    }
}

This works for me. You can easily pass in any property to exclude. Or turn it around:

def a = Employee.list()

String[] includedProperties=['id', 'lastName']
render(contentType: "text/json") {
    employees = array {
        a.each {
            employee it.properties.findAll { k,v -> (k in includedProperties) }
        }
    }
}

Beware: This is only for simple objects. If you see "Misplaced key: expected mode of KEY but was OBJECT" this solution is not for you. :)

HP