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method

build_from

Importance_0
Ruby on Rails latest stable (v4.2.1) - 0 notes - Class: ActiveRecord::QueryMethods
build_from() private

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# File activerecord/lib/active_record/relation/query_methods.rb, line 1006
    def build_from
      opts, name = from_value
      case opts
      when Relation
        name ||= 'subquery'
        opts.arel.as(name.to_s)
      else
        opts
      end
    end
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