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taybin/ecto_models.ex

Last active August 29, 2015 14:07
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ecto_models.ex
defmodule Node do
use Ecto.Model
schema "nodes" do
has_many :children, NodeToNode, foreign_key: :parent_id
has_many :parents, NodeToNode, foreign_key: :child_id
end
end
defmodule NodeToNode do
use Ecto.Model
schema "node_to_node", primary_key: false do
belongs_to :parent, Node, foreign_key: :parent_id
belongs_to :child, Node, foreign_key: :child_id
end
end
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