looking up accessor methods for ActiveRecord objects

Hi,

I am trying to invoke a method on an ActiveRecord object using something
like:

k = :date=
obj.method(k).call(new_date)

Initially obj.method(k) is throwing a NameError. However, if I first
explicitly invoke _any_ accessor method, then the above works as
expected:

obj.date  # just get the date
k = :date=
obj.method(k).call(new_date) # works now

Is there a good way to ensure that these accessor methods are loaded
before
I try looking them up with .method()?

Thanks,
Erik
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