instance method create_binds

# File activerecord/lib/active_record/relation/query_methods.rb, line 966
    def create_binds(opts)
      bindable, non_binds = opts.partition do |column, value|
        PredicateBuilder.can_be_bound?(value) &&
          @klass.columns_hash.include?(column.to_s) &&
          !@klass.reflect_on_aggregation(column)
      end

      association_binds, non_binds = non_binds.partition do |column, value|
        value.is_a?(Hash) && association_for_table(column)
      end

      new_opts = {}
      binds = []

      connection = self.connection

      bindable.each do |(column,value)|
        binds.push [@klass.columns_hash[column.to_s], value]
        new_opts[column] = connection.substitute_at(column)
      end

      association_binds.each do |(column, value)|
        association_relation = association_for_table(column).klass.send(:relation)
        association_new_opts, association_bind = association_relation.send(:create_binds, value)
        new_opts[column] = association_new_opts
        binds += association_bind
      end

      non_binds.each { |column,value| new_opts[column] = value }

      [new_opts, binds]
    end