How to populate a select form element from a different module/controller/model?

Hi All,

I know some of this (MVC) stuff has been discussed before, but I'm still
curious and looking for guidance, advice, clarification or perhaps a best
practice for the following:

a. I have a module (controller, model, views) for creating and managing
static pages and I also have a separate controller and model for managing
languages.
b. Using a form (Zend_Form -> select element, dropdown list), a user can can
set the language for each static page. The form itself is instantiated
inside the PageController.

My specific problem:
How and where (controller/model/view helper) would I fetch the language
(array) data, located in the Language model with access to the languages
database table, for the select element/dropdown list in the Page form
(located in the PageController)?

Solutions I can think of:
1. Create a query in the Page Model, that fetches the languages from the
other table in the database. Easiest, but what if the language table
changes? Then I need to update the query in both the Page model and Language
model (not very DRY), instead of only the Language model.

2. Require or include the Language model in the Page Model, retrieve the
language data and return the data to the PageController that sets it the
Page form. Wow!

3. Require or include the Language model in the PageController, retrieve the
form element in the page form and using the language model set the options
on the select element.

4. Anymore solutions exist?

My general problem:
Can models access other models directly, or should there always be a
controller between them? Which creates a different problem when Controllers
need to connect to other Controllers to get to the model data.

I'm actually quite confused to see that a View (helper) can have read access
to a model, controllers setup and access models, but also the possibility
that models can access other models as well.

Regards, TJ.
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