instance method joined_tables

# File activerecord/lib/active_record/associations.rb, line 1748
        def joined_tables(options)
          scope = scope(:find)
          joins = options[:joins]
          merged_joins = scope && scope[:joins] && joins ? merge_joins(scope[:joins], joins) : (joins || scope && scope[:joins])
          [table_name] + case merged_joins
          when Symbol, Hash, Array
            if array_of_strings?(merged_joins)
              tables_in_string(merged_joins.join(' '))
            else
              join_dependency = ActiveRecord::Associations::ClassMethods::InnerJoinDependency.new(self, merged_joins, nil)
              join_dependency.join_associations.collect {|join_association| [join_association.aliased_join_table_name, join_association.aliased_table_name]}.flatten.compact
            end
          else
            tables_in_string(merged_joins)
          end
        end