Maxfield Luke
af6077b9c3
Fresh repository history for elektrine/tarakan hosted at https://git.elektrine.com/elektrine/tarakan.
15 lines
544 B
Elixir
15 lines
544 B
Elixir
defmodule TarakanWeb.ChangesetErrors do
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@moduledoc """
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Renders an Ecto changeset's errors into a plain, JSON-encodable map for API
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responses (field => list of interpolated messages).
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"""
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@doc "Traverses `changeset` errors, interpolating `%{count}`-style placeholders."
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def to_map(changeset) do
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Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
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Regex.replace(~r"%{(\w+)}", message, fn _match, key ->
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opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
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end)
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end)
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end
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end
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