instance method `reverse_sql_order`

Ruby on Rails 4.0.13

Since v3.0.20 Private

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

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reverse_sql_order(order_query)

No documentation comment.

Parameters

order_query req

Source

# File activerecord/lib/active_record/relation/query_methods.rb, line 988
    def reverse_sql_order(order_query)
      order_query = ["#{quoted_table_name}.#{quoted_primary_key} ASC"] if order_query.empty?

      order_query.flat_map do |o|
        case o
        when Arel::Nodes::Ordering
          o.reverse
        when String
          o.to_s.split(',').collect do |s|
            s.strip!
            s.gsub!(/\sasc\Z/i, ' DESC') || s.gsub!(/\sdesc\Z/i, ' ASC') || s.concat(' DESC')
          end
        when Symbol
          { o => :desc }
        when Hash
          o.each_with_object({}) do |(field, dir), memo|
            memo[field] = (dir == :asc ? :desc : :asc )
          end
        else
          o
        end
      end
    end

Defined in activerecord/lib/active_record/relation/query_methods.rb line 988 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::QueryMethods

Signature

Parameters