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rails--rails/activerecord/test/models/edge.rb
2016-08-06 19:37:57 +02:00

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221 B
Ruby

# This class models an edge in a directed graph.
class Edge < ActiveRecord::Base
belongs_to :source, class_name: "Vertex", foreign_key: "source_id"
belongs_to :sink, class_name: "Vertex", foreign_key: "sink_id"
end