Rails HABTM with polymorphic relationships

Question

I have a table Category which can have many Businesses and Posts. And a Business/Post can have many Categ

Answer 1

Similar questions here: Rails polymorphic has_many :through And here: ActiveRecord, has_many :through, and Polymorphic Associations

I think it should be something like this:

class Category
  has_many :categorizations
  has_many :businesses, through: :categorizations, source: :categorizable, source_type: 'Business'
  has_many :posts, through: :categorizations, source: :categorizable, source_type: 'Post'
end

class Categorization
  belongs_to :category
  belongs_to :categorizable, polymorphic: true
end

class Business #Post looks the same
  has_many :categorizations, as: :categorizeable
  has_many :categories, through: :categorizations
end