What does a promotional model do?

In Django, what is the best way to reference another model in a model instance?

• I have a Django model, we'll call it List. In the List model, I want to make a user-selectable reference to another model. This way, in the admin, a user could create a new instance of List, and choose from a selection of all the models. Say there are models called User, Site, Post, and Comment. Once the user adds a new List one of the options they have is a choice field that lists User, Site, Post, and Comment. The view code for the List should then be able to figure out which model a particular List instance references and perform queries on that model.

• Answer:

  if I understood correctly you just want to choose a model and then query that table elsewhere, you don't have a relationship among those on the data itself so I would simply use a field with the 'choices' parameter and then select it on the view based on that.