- users = users.where(:status => @params[:status]) if @params[:status]
- users = users.where(:creation_address => @params[:ip]) if @params[:ip]
+ users = users.where(:status => @params[:status]) if @params[:status].present?
+ users = users.where("LOWER(email) = LOWER(?) OR LOWER(NORMALIZE(display_name, NFKC)) = LOWER(NORMALIZE(?, NFKC))", @params[:username], @params[:username]) if @params[:username].present?
+ users = users.where("creation_address <<= ?", @params[:ip]) if @params[:ip].present?