ruby on rails - Using find method to find NOT matching -

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I'm trying to see a user by group_id, my method looks like this: 

  User.find (: all ,: conditions = & gt; {: group_id = & gt; '90a39597a1aa3ec65fccf29ae05d9b6aefbfea6b',: id = & gt;; current_user.id})

: ID status does not make sense because I do not know the syntax for this part. How do I search the user by group_id and id that does not match current_user?

Hope this will be prudent.

Use the array / string variation options of the conditions: 

  User.all (: conditions = & gt; ["group_id =? And id! =?", "90a39597a1aa3ec65fccf29ae05d9b6aefbfea6b", current_user.id])

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