Can modifying the default Rails primary keys cause any problems?

Question

By default, Rails generates the id field for all my tables and I would like to know if, in the future, it can generate an error if I change the name and type of the key. I ask this because I realized that Rails has some naming conventions that must be followed. I apologize if the question is a bit silly, but I am concerned about the possibility of having problems in the future.

Answer 1

You can change the primary key to another column:

class Project < ActiveRecord::Base
  self.primary_key = 'nomecoluna'
end

http://api.rubyonrails.org/classes/ActiveRecord/AttributeMethods/PrimaryKey/ClassMethods.html