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commanded_uniqueness_middleware

0.7.1

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Use CommandedUniquenessMiddleware to ensure short-term value uniqueness, usually during Commanded command dispatch.

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commanded_uniqueness_middleware test support test_command_simple.ex

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test/support/test_command_simple.ex

defmodule TestCommandSimple do
  @moduledoc false

  defstruct [
    :id,
    :name
  ]
end

defimpl Commanded.Middleware.Uniqueness.UniqueFields, for: TestCommandSimple do
  def unique(%TestCommandSimple{id: id}),
    do: [
      {:name, "has already been taken", id}
    ]
end

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