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build_arel() private

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# File activerecord/lib/active_record/relation/query_methods.rb, line 939
      def build_arel
        arel = Arel::SelectManager.new(table)

        build_joins(arel, joins_values.flatten) unless joins_values.empty?
        build_left_outer_joins(arel, left_outer_joins_values.flatten) unless left_outer_joins_values.empty?

        arel.where(where_clause.ast) unless where_clause.empty?
        arel.having(having_clause.ast) unless having_clause.empty?
        arel.take(Arel::Nodes::BindParam.new) if limit_value
        arel.skip(Arel::Nodes::BindParam.new) if offset_value
        arel.group(*arel_columns(group_values.uniq.reject(&:blank?))) unless group_values.empty?

        build_order(arel)

        build_select(arel)

        arel.distinct(distinct_value)
        arel.from(build_from) unless from_clause.empty?
        arel.lock(lock_value) if lock_value

        arel
      end
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