method
collapse
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Class: SelectManager
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collapse(exprs)
private
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# File activerecord/lib/arel/select_manager.rb, line 258 def collapse(exprs) exprs = exprs.compact exprs.map! { |expr| if String === expr # FIXME: Don't do this automatically Arel.sql(expr) else expr end } if exprs.length == 1 exprs.first else create_and exprs end end