method

primary_key

v5.1.7 - Show latest stable - 0 notes - Class: ActiveRecord::ConnectionAdapters::SchemaStatements

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What's this?

primary_key(table_name) public

Returns just a table’s primary key

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 141
      def primary_key(table_name)
        pk = primary_keys(table_name)
        pk = pk.first unless pk.size > 1
        pk
      end

primary_key

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