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Diffstat (limited to 'activerecord/test/models/vertex.rb')
| -rw-r--r-- | activerecord/test/models/vertex.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/activerecord/test/models/vertex.rb b/activerecord/test/models/vertex.rb new file mode 100644 index 0000000000..0ad8114898 --- /dev/null +++ b/activerecord/test/models/vertex.rb @@ -0,0 +1,11 @@ +# frozen_string_literal: true + +# This class models a vertex in a directed graph. +class Vertex < ActiveRecord::Base + has_many :sink_edges, class_name: "Edge", foreign_key: "source_id" + has_many :sinks, through: :sink_edges + + has_and_belongs_to_many :sources, + class_name: "Vertex", join_table: "edges", + foreign_key: "sink_id", association_foreign_key: "source_id" +end |