/ Ruby on Rails
/
method

primary_key_column_name

primary_key_column_name()
private

No documentation available.

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 289
      def primary_key_column_name
        primary_key_column = columns.detect { |c| c.primary_key? }
        primary_key_column && primary_key_column.name
      end