method
foreign_key
rails latest stable - Class:
ActiveSupport::CoreExtensions::String::Inflections
foreign_key(separate_class_name_and_id_with_underscore = true)public
Creates a foreign key name from a class name. separate_class_name_and_id_with_underscore sets whether the method should put ‘_’ between the name and ‘id’.
Examples
"Message".foreign_key # => "message_id" "Message".foreign_key(false) # => "messageid" "Admin::Post".foreign_key # => "post_id"