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What is a Smart Segment?

A Segment is a subset of a collection: it’s basically a saved filter of your collection. Segments are designed for those who want to systematically visualize data according to specific sets of filters. It allows you to save your filters configuration so you don’t have to compute the same actions every day. A Smart Segments is useful when you want to use a complex filter, which you’ll add as code in your backend.

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Creating a Smart Segment

Sometimes, segment filters are complicated and closely tied to your business. Forest allows you to code how the segment is computed. On our Live Demo example, we’ve implemented a Smart Segment on the collection products to allow admin users to see the bestsellers at a glance. 
class Forest::Product
  include ForestLiana::Collection

  collection :Product

  segment 'Bestsellers' do
    productIds = Product.joins(:orders).group('products.id').order('count(orders.id)').limit(10).pluck('products.id')

    { id: productIds }
  end
end

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Setting up independent columns visibility

By default, Forest applies the same configuration to all segments of the same collection. However, the Independent columns configuration option allows you to display different columns on your different segments.