Zend_Acl, with roles and permissions stored in database

Question

i want to build an ACL system for my application which have the following requirement.

1. Users will be assigned single or multiple role. (Admin, Staff) etc.

Answer 1

Well I think this structure is really good , to get this working you had to do 2 steps

1-Setup all the databases and requirements

2- create an ACL plugin that determine the user's role and his permissions

some example with doctrine support :

Developing a Doctrine-backed ACL helper TDD-style, part 1

Developing a Doctrine-backed ACL helper TDD-style, part 2

another simple ACL :

Dynamic custom ACL in zend framework?