sanitize_sql_for_conditions (ActiveRecord::Base)

    # File lib/active_record/base.rb, line 2226
            def sanitize_sql_for_conditions(condition, table_name = quoted_table_name)
              return nil if condition.blank?

              case condition
                when Array; sanitize_sql_array(condition)
                when Hash;  sanitize_sql_hash_for_conditions(condition, table_name)
                else        condition
              end
            end