hi

i try to add newsletter form to my site

i've create new code/RegistrationForm.php like here http://doc.silverstripe.org/recipes:forms

also created RegistrationForm.ss in templates/includes only with this code

in layout puting <% include RegistrationForm %> but nothing, no form rendering

so how to render function from other classes which are not extends

example 1

class A extend B {
}

class B extend Page_Controller {
function Form() {
};
}

in A.ss $Form will be works

example 2

class A extends Page_Controller {
}

class B extends Page_Controller {
function Form() {
};
}

in A.ss $Form will not be works

Well in example #2 - A does not extend B, A does not know about B. How is it meant to render if it has no idea of its existing. To get the function Form() you would have to create a new B (since you don't have a b)

class A extends Page_Controller {

function Form() {
$b = new B();

return $b->Form();
}