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hierarch

0.2.0

0.2.1 0.2.0 0.1.2 0.1.1 0.1.0

Hierarchy structure for ecto models with PostgreSQL LTree.

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hierarch lib query roots.ex

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lib/query/roots.ex

defmodule Hierarch.Query.Roots do
  import Ecto.Query

  @doc """
  Return query expressions for roots
  """
  def query(schema) do
    roots_path = ""

    from(
      t in schema,
      where: field(t, ^schema.__hierarch__(:path_column)) == ^roots_path
    )
  end
end

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