How to find elements without empty field?

Question

Ruby on Rails

I need to exclude from the request all the data in which one field is filled.
For example: @section=Blog.where(blog_id: nil) so I can take all the articles that have an empty blog_id, but I need it the other way around so that they don’t get into the selection with an empty one.

Answer 1

@section = Blog.where.not(blog_id: nil)