method

pk_and_sequence_for

v2.1.0 - Show latest stable - 0 notes - Class: ActiveRecord::ConnectionAdapters::MysqlAdapter

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What's this?

pk_and_sequence_for(table) public

Returns a table’s primary key and belonging sequence.

# File activerecord/lib/active_record/connection_adapters/mysql_adapter.rb, line 492
      def pk_and_sequence_for(table) #:nodoc:
        keys = []
        execute("describe #{quote_table_name(table)}").each_hash do |h|
          keys << h["Field"]if h["Key"] == "PRI"
        end
        keys.length == 1 ? [keys.first, nil] : nil
      end

pk_and_sequence_for

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