Thursday, August 20, 2015
On Saturday, 18 July 2015 01:56:43 UTC-5, Aravind Gopalakrishnan wrote:
I am building a soft delete solution a la https://github.com/discourse/discourse/blob/master/app/ . 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.models/concerns/trashable.rb
The place to start is `reflect_on_all_associations`:
http://api.rubyonrails.org/classes/ActiveRecord/Reflection/ClassMethods.html#method-i-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
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