Hi,
I solved an issue I had but I'm not sure if it's the expected behaviour or
not. Let me explain.
I realized that model values in plugins are not inherited by default when
subclassing a model.
That is:
class MyModel < Sequel::Model
> plugin MyPlugin, foo: { a: 1 }
> end
class MyInherited < MyModel
> end
If MyPlugin stores the foo value in a @foo variable, it is nil in
MyInherited.
That's where the doc kicks in
http://sequel.jeremyevans.net/rdoc/files/doc/model_plugins_rdoc.html#label-Handling+Subclasses,
and adding
Sequel::Plugins.inherited_instance_variables(self, :@foo => nil)
in the plugin's ClassMethods fixes the issue.
But I wanted to clarify if it's expected. The doc states "*instead of model
subclasses asking their parent class for a value if they don't have it
defined, the value is automatically copied from the parent class to the
subclass when the subclass is created*".
So I would expect that I don't have to call inherited_instance_variables
myself: the default would be the `nil` option.
I suspect it's expected behaviour though, and the doc could be updated to
"automatically copied *if you specify an inheritance policy through
inherited_instance_variables*".
Let me know if my understanding is correct and I can submit this small doc
PR.
Best,
*Michael MONERAU*
Qontrol <https://www.qontrol.io>
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