method

primary_keys

v5.2.3 - Show latest stable - 0 notes - Class: ActiveRecord::ConnectionAdapters

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primary_keys(table_name) public

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# File activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb, line 478
      def primary_keys(table_name) # :nodoc:
        raise ArgumentError unless table_name.present?

        scope = quoted_scope(table_name)

        query_values(          SELECT column_name          FROM information_schema.key_column_usage          WHERE constraint_name = 'PRIMARY'            AND table_schema = #{scope[:schema]}            AND table_name = #{scope[:name]}          ORDER BY ordinal_position.strip_heredoc, "SCHEMA")
      end

primary_keys

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