Question

How do I pass an entire model from one controller to another without using a redirect?

Answer 1

I struggled with this for quite a while, so decided to answer my own question…

It’s quite possible with the forward method. Unlike the chain method, the documentation doesn’t mention the model attribute, but [in grails 2.1.1 at least] it is actually supported.

In Controller One:

    def model = [
        firstname:           params.firstname, 
        lastname:            params.lastname
    ]

    forward(controller:"controllerName",action:"index", model:model)

In Controller Two:

    render (view: "/page.gsp") 

In page.gsp

    Welcome ${firstname} ${lastname},
    ...

Simple as that…