require_fixture_classes

# File activerecord/lib/active_record/fixtures.rb, line 867
        def require_fixture_classes(table_names = nil)
          (table_names || fixture_table_names).each do |table_name|
            file_name = table_name.to_s
            file_name = file_name.singularize if ActiveRecord::Base.pluralize_table_names
            try_to_load_dependency(file_name)
          end
        end