How to render the result of Model's method after submitting to another model?

[Олег Котов]

Hello. 

I have a model which saves data from field forms on site to the PostgreSQL.

And another model which must take some data her table and handle it.

So how can i print result of my second model's method to another field form on site?

I think it's a stupid question, but i've read many tutorials and still don't know how can i do that.

Thank you.