using datamapper with ruby. Suppose i have a model called Post:
class Post
include DataMapper::Resource
property :id, Serial
property :name, String, length: 255
property :category_ids, Object
end
Post.create(name: 'My post', category_ids: [1,2,3])
Post.all(category_ids: [1])
=> []
Post.all(category_ids: [1,2,3])
=> []
It's possible to query over Object properties?