src/Extensions/GridFieldBetterButtonsItemRequest.php
public function nestedform(HTTPRequest $r)
    {
        $req = new BetterButtonsNestedFormRequest($this, $this->owner, $this->owner->ItemEditForm());

        return $req->handleRequest($r, DataModel::inst());
    }
public function nestedform(HTTPRequest $r)
    {
        $req = new BetterButtonsNestedFormRequest($this, $this->owner, $this->owner->ItemEditForm());

        return $req->handleRequest($r, DataModel::inst());
    }
public function nestedform ( HTTPRequest $ r ) { $ req = new BetterButtonsNestedFormRequest ( $ this , $ this -> owner , $ this -> owner -> ItemEditForm ( ) ) ; return $ req -> handleRequest ( $ r , DataModel :: inst ( ) ) ; }
Handles all custom action from DataObjects and hands them off to a sub-controller.
e.g. /nestedform?action=myDataObjectAction

@param  HTTPRequest $r
@return BetterButtonsNestedFormRequest
Handles all custom action from DataObjects and hands them off to a sub - controller . e . g . / nestedform?action = myDataObjectAction