activerecord - How to compare null in rails active record query -


how can match null in rails active record.

user.where(['id = ? , active = ? , activation_code = ?', params[:id], 0, null]).first

or

 user.where(['id = ? , active = ? , activation_code = ?', params[:id], 0, nil]).first

both not working.

try this:

user.where(['id = ? , active = ? , activation_code null', params[:id], 0]).first

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