activerecord - How to rewrite this rails 4 query to reduce the code -

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I have a rail query where I am selecting all the test ID where the name field is empty or zero, rewrite it One way, then this is cleaner? 

  Sue. Where (name: "") .pluck (: id) + test Where (name: zero) .pluck (: id) << Code>   
 
 
 The shortest way I know Here's how to write it:  
  Trial.Jet (name: [Nil, '']). ID  
 
 This will find all the  trials  record IDs where  name  is empty or empty.TT produces the following SQL: 
 Where (`` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' ' >

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