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improvement: add :struct
(Ash.Type.struct
) type
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parent
c73630097c
commit
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3 changed files with 50 additions and 1 deletions
48
lib/ash/type/struct.ex
Normal file
48
lib/ash/type/struct.ex
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@ -0,0 +1,48 @@
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defmodule Ash.Type.Struct do
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@moduledoc """
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Represents a struct.
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This cannot be loaded from a database, it can only be used to cast input.
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Use the `instance_of` constraint to specify that it must be an instance of a specific struct.
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"""
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use Ash.Type
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@constraints [
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instance_of: [
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type: :atom,
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doc: "The module the struct should be an instance of",
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default: false
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]
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]
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@impl true
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def constraints, do: @constraints
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@impl true
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def storage_type, do: :map
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@impl true
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def cast_input(nil, _), do: {:ok, nil}
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def cast_input(%struct{} = value, constraints) do
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case constraints[:instance_of] do
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nil ->
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{:ok, value}
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^struct ->
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{:ok, value}
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_ ->
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:error
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end
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end
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def cast_input(_, _), do: :error
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@impl true
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def cast_stored(_, _), do: :error
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@impl true
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def dump_to_native(_, _), do: :error
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end
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@ -25,6 +25,7 @@ defmodule Ash.Type do
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duration_name: Ash.Type.DurationName,
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duration_name: Ash.Type.DurationName,
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function: Ash.Type.Function,
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function: Ash.Type.Function,
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boolean: Ash.Type.Boolean,
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boolean: Ash.Type.Boolean,
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struct: Ash.Type.Struct,
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uuid: Ash.Type.UUID,
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uuid: Ash.Type.UUID,
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binary: Ash.Type.Binary,
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binary: Ash.Type.Binary,
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date: Ash.Type.Date,
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date: Ash.Type.Date,
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2
mix.exs
2
mix.exs
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@ -220,7 +220,7 @@ defmodule Ash.MixProject do
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# Run "mix help deps" to learn about dependencies.
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# Run "mix help deps" to learn about dependencies.
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defp deps do
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defp deps do
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[
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[
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{:spark, "~> 0.2 and >= 0.2.18"},
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{:spark, "~> 0.2.18"},
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{:ecto, "~> 3.7"},
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{:ecto, "~> 3.7"},
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{:ets, "~> 0.8.0"},
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{:ets, "~> 0.8.0"},
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{:decimal, "~> 2.0"},
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{:decimal, "~> 2.0"},
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