提交表单按钮不适用于简单的待办事项列表应用程序（我是CakePHP的新手）？

I am learning cakephp, and I was just doing a simple Todo list app from a book. The app basically takes in a task from an input field, then you click 'Add Task' and the task should be added to database and then the user gets redirected to Tasks View page where all the tasks can be seen including the one they just added. In the add task view (add.ctp) there is an "Add Task" button. The button shows up in the browser, but it does nothing when clicked on, it doesn't even seem to be linked to anything?? Here is my code:I am learning cakephp, and I was just doing a s