Grails flash scope

Question

Hi,

In my Grails app I have a controller action that does this:

def activeMember = {ConfirmSignUpCommand signupCommand ->

    flash.signupCommand = signupCommand
    render(view: "confirmPassword")
}

When the form on confirmPassword.gsp is submitted it is handled by the following action:

def validatePasswordConfirmation = {

    def password = params.password
    def command = flash.signupCommand
}

However, when I reach the validatePasswordConfirmation action the flash scope is empty. I'm 100% certain that there are no requests submitted between these two controller actions. Where has my flash-scoped object gone?

Answer 1

The flash object would be available to the next request, in your scenario that is the rendering of the confirmPassword.gsp page (many times it's also used to pass objects to another controller via a redirect). When the confirmPassword.gsp page submits that is another request and the object you placed in flash is cleared automatically.