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How to create many subcategories in rails?
Without using any gems how do I do this in rails? I see the gem Ancestry (https://github.com/stefankroes/ancestry)
Main Category Sub Category Sub Category Sub-sub Category Main Category Sub Category Sub-sub Category Sub-sub-sub Category Main Category Sub Category Sub Category Sub Category
How would the relationship between models?
So firstly, I used ancestry. I found it saved me a ton of time and, well, pain. Tree structures can get really crazy depending on what you're using them for. If you really don't want to use a gem, I recommend creating a
Category model and adding a
parent_id column that can be used in a
belongs_to relation to point to it. Be aware though: things like eager loading, or even querying the full tree, in this instance get very difficult, and I'm not sure how you'd even go about those things without writing a lot of raw sql. Still, if you're really motivated, here's a nifty article on how to do that as well: