method

primary_key

rails latest stable - Class: ActiveRecord::ConnectionAdapters::Mysql2Adapter

primary_key(table)

public

Returns just a table’s primary key

# File activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb, line 583
      def primary_key(table)
        pk_and_sequence = pk_and_sequence_for(table)
        pk_and_sequence && pk_and_sequence.first
      end

primary_key

Method deprecated or moved

Related methods