How can I extend a module to a model class and use an instance of a
custom class as a class instance variable for model such that when next
request comes, custom class could be found and older instances are
deleted?
I created a class Samples. I also created a module LoadSamples where
in a method say load_samples, I create a new Samples instance and
assign it to a class instance variable. I extend LoadSamples to
ActiveRecord::Base and called load_samples from model User.
class Samples
...
end
module LoadSamples
attr_accessor :samples
def load_samples
@samples ||= Samples.new
...
end
end
The first page that loads, loads fine, but subsequent request gives:
-------------------------------------
ArgumentError in UsersController#new
A copy of BaseSample::LoadSamples has been removed from the module tree
but is still active!
------------------------------------
and points to line @samples ||= Samples.new
This works in production mode or when I set config.cache_classes to
true. But it becomes difficult to work in dev mode.
What can I do about it and what are the alternatives?
This is my first post and I have a feeling that when I post this, it may
not appear as formatted. Please help me with the same too.
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