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Our blog app doesn't allow users to tell us how awesome our posts are. This situation is, of course, unacceptable. So we're going to need a comments system. We need to be able to associate comments with a particular post.
Course Prerequisites
Make sure you're familiar with all the concepts in our Rails Routes and Resources course before attempting this course.
A bit of knowledge about SQL JOIN queries will be helpful as well. You can learn more in our Querying Relational Databases course.
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