method

exec_queries

v5.0.0.1 - Show latest stable - Class: ActiveRecord::Relation::RecordFetchWarning

exec_queries()

public

When this module is prepended to ActiveRecord::Relation and `config.active_record.warn_on_records_fetched_greater_than` is set to an integer, if the number of records a query returns is greater than the value of `warn_on_records_fetched_greater_than`, a warning is logged. This allows for the detection of queries that return a large number of records, which could cause memory bloat.

In most cases, fetching large number of records can be performed efficiently using the ActiveRecord::Batches methods. See active_record/lib/relation/batches.rb for more information.

# File activerecord/lib/active_record/relation/record_fetch_warning.rb, line 14
      def exec_queries
        QueryRegistry.reset

        super.tap do
          if logger && warn_on_records_fetched_greater_than
            if @records.length > warn_on_records_fetched_greater_than
              logger.warn "Query fetched #{@records.size} #{@klass} records: #{QueryRegistry.queries.join(";")}"
            end
          end
        end
      end

exec_queries

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