How to write data in a Ruby on Rails database through the form of one model to another associated with an association?

Question

Ruby on Rails

Please tell me
how to write data to the database of another model through the form.
The task is this:
There are three models: Series, Season, Series (episode)
I create a new series. I fill out the series form: name, description and other information.
Here I add the season, where I indicate the number of the season, the name of the season and its description.
I add a series (episode) to the season with my series number, series name and description
. For each series, I indicate links to video files.
Thank you.

Answer 1

Nested attributes