Grails Command object @PostConstruct or something?

Question

I want to initialize Command field from an injected Service.

So I need to execute a Command's method after it has been fully initialized, but before params is assigned to fields.

How can I do it? OK, I can get a Service bean by hand in constructor. Any better way?

Had no luck with @PostConstruct or InitializingBean - looks like Command is not a bean, right?

Grails 1.3.5

Answer 1

You're right the command is not a bean. You could instantiate the command instance by a service method and do initialization there and return the instance back to the controller. Than call the controller's bindData with the returned instance like this:

// controller code
def myService // injected

def action = {
    def command = mySerivce.createCommandInstance() 
    bindData(command, params)
}

// service code
class MyService {
    def createCommandInstance() {
       def cmd = new MyCommand()
       doSomeInitializationWithCommand(cmd)
       return cmd
    }
}