I am building a soft delete solution a la https://github.com/discourse/discourse/blob/master/app/models/concerns/trashable.rb . Right now I am manually finding which all associated models need to be deleted when a model is deleted and doing it manually in each model which of course is a not a good practice. How do I do it? I don’t want to use a gem, I want to write logic in my own hands.
Hi Aravind,
I am not sure if I understood your question correctly but I will give a try. I think you want to delete all associated records with another type of the Model.
class Body has_many: boobs, dependent: :destroy end
In this instance destroy parameter is responsible for generating/using code
that removes all dependent boob if the body instance is destroyed.
Did I get you right?
The place to start is reflect_on_all_associations:
This will give you all the associations defined for the model. You can then request the option you’re interested in thus:
klass.reflect_on_all_associations do |reflection|
if reflection.options[:dependent]
# do something with it
end
end
–Matt Jones
