So logic is one static_content has many products.
In backend - the form for create or update a static_content, i want add a multi choices list which has all my products.
I think i should create new document(a php file) inside AcmeXXXBundle\Document\ to extend Symfony\Cmf\Bundle\ContentBundle\Doctrine\Phpcr\StaticContent and add "protected products" into it. And then i need do a mapping file or annotation in this document and make a relation between static_centent and products (one-to-many).
I'm not sure if i do above things it will be working. any suggestions are appreciated.