Don't insert on array unless nil

Question

I'm trying to find and record, is the record is nil, I don't want it on my array like this:

@kid <<  Kid.find_only_kid(k) unless nil

But when I get a nil, the record is inserted on the array.

This is the code of my find_only_kid method on my model:

  def self.find_only_kid(kid)
    Kid.where(_id: kid.to_s, parent: false, teacher: false).first rescue nil
  end

Answer 1

Your code should be :

kid = Kid.find_only_kid(k)
@kid << kid unless kid.nil?

Note:

When a variable name is meant to hold collections, and it should be kids instead of kid. And the method name should be find_only_kids instead of find_only_kid.