Is it possible to execute SQL `OR` clauses by using scope methods?
===

I am using Ruby on Rails 3.2.2 and the Squeel gem. I would like to know if there is a way to use more that one scope method so to generate SQL queries with `OR` clauses related to those scope methods. That is, I have:

    class Article < ActiveRecord::Base
      def self.scope_method_1
        ... # scope_method_1 SQL conditions
      end
    
      def self.scope_method_2
        ... # scope_method_2 SQL conditions
      end
    
      def self.scope_methods_combiantion
        # I am looking for something like
        #
        # where{scope_method_1 | scope_method_2} # Note: The '|' means the SQL 'OR' clause in the Squeel context
        #
        # so to generate the following SQL query:
        #
        # SELECT FROM articles WHERE <scope_method_1 SQL conditions> OR <scope_method_2 SQL conditions>
      end
    end

Is it possible to execute SQL `OR` clauses by using scope methods?