Make a form where the list of values ​​depends on the selected value of another field. What are the solutions?

Question

symfony

Welcome all. Tell me which approach is better to use to solve the following problem (SF 2.3):
1. There is a form
2. There are several fields of drop-down lists in the form, the values ​​are taken from the database
3. When you select a value in the first list, in the next - a list is formed based on the selected value and etc. on the last field
Such task dares only AJAX ohm or there are still any options? If AXAJ-ohm, then tell me how best to solve this moment? AngularJS on this topic? Thanks in advance.

Answer 1

A million implementations.....
here is one of them Symfony2::DependentEntity - dependent dropdown...