Class: Spree::OrderRouting::Rules::MinimizeSplits

Inherits:
Spree::OrderRoutingRule show all
Defined in:
app/models/spree/order_routing/rules/minimize_splits.rb

Overview

Prefers locations that can fulfill more demand on their own. Higher coverage → lower (better) rank, so the location that single-handedly covers the most variants wins. Coverage is counted per distinct variant so a variant repeated across multiple line items isn’t double-counted.

Instance Method Summary collapse

Instance Method Details

#rank(order, locations) ⇒ Object 



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# File 'app/models/spree/order_routing/rules/minimize_splits.rb', line 9

def rank(order, locations)
  demand = required_quantity_by_variant(order)
  counts = stock_item_counts(demand.keys, locations)

  locations.map do |loc|
    coverage = demand.count do |variant_id, qty|
      (counts[[loc.id, variant_id]] || 0) >= qty
    end

    LocationRanking.new(location: loc, rank: -coverage)
  end
end