ruby on rails - is there anyway to combine these into one ActiveRecord query? -

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I am thinking that both of these questions are there to connect together where without By using the string (... notifiable_type = & gt; "post" ,: notifiable_id => post.id) notification. Where (: notifiable_type = & gt; "comment",: Notifiable_id => post.comments.map (& amp; id))

In other words, I have to do without Looking for a method: 

  notification. ("(Notifiable_type = 'post' and notifiable_id =?) Or (notifiable_type = 'comment' and (?)) Notifiable_ id", [post] .id, post.comments.map (& amp; id)])   
 Is this possible?   
 
 
 You can use to get it in a clean and readable way:  
  notification. Where ((:: notifiable_type = & gt; "post" & amp;; notifiable_id = & gt; post.id) | (: Notifiable_type = & gt; "Comment" & amp ;: notifiable_id = & gt; [post.comments .map (& amp; amp;; id)))

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