What is the best way to write to the database?

Question

Ruby on Rails

Hello!
There are news and categories tables. A news item can have several categories. Now, when adding news, I add a link in this way:

if params[:news][:categories]
  params[:news][:categories].each do |category|
    @news.categories_news.create(category_id: category.first.to_i)
  end
end

The list of categories is a checkbox with the name:
news[categories[тут_id_категории]]
There is a feeling that sorting through everything in a loop and stupidly entering each category into a table is not the best solution. Interested in the most correct way to write relationships in the database?

Answer 1

you can use accept_nested_attributes - https://robots.thoughtbot.com/accepts-nested-attri...

Answer 2

That's right, not the best solution.
For starters, use strong_params if you're going that route. https://github.com/plataformatec/simple_form will help you to save links correctly . There are many basic examples for various options (checkboxes, radio buttons, etc.).
And also, I advise you to look towards the Form Object pattern (see Google) and try to use it for your case.