build

# File activerecord/lib/active_record/relation/where_clause_factory.rb, line 9
      def build(opts, other)
        case opts
        when String, Array
          parts = [klass.send(:sanitize_sql, other.empty? ? opts : ([opts] + other))]
        when Hash
          attributes = predicate_builder.resolve_column_aliases(opts)
          attributes = klass.send(:expand_hash_conditions_for_aggregates, attributes)
          attributes.stringify_keys!

          if perform_case_sensitive?(options = other.last)
            parts, binds = build_for_case_sensitive(attributes, options)
          else
            attributes, binds = predicate_builder.create_binds(attributes)
            parts = predicate_builder.build_from_hash(attributes)
          end
        when Arel::Nodes::Node
          parts = [opts]
        else
          raise ArgumentError, "Unsupported argument type: #{opts} (#{opts.class})"
        end

        WhereClause.new(parts, binds || [])
      end