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defmodule SilmataivasWeb.ChangesetJSON do
@doc """
Renders changeset errors.
"""
def error(%{changeset: changeset}) do
# When encoded, the changeset returns its errors
# as a JSON object. So we just pass it forward.
%{errors: Ecto.Changeset.traverse_errors(changeset, &translate_error/1)}
end
defp translate_error({msg, opts}) do
# You can make use of gettext to translate error messages by
# uncommenting and adjusting the following code:
# if count = opts[:count] do
# Gettext.dngettext(SilmataivasWeb.Gettext, "errors", msg, msg, count, opts)
# else
# Gettext.dgettext(SilmataivasWeb.Gettext, "errors", msg, opts)
# end
Enum.reduce(opts, msg, fn {key, value}, acc ->
String.replace(acc, "%{#{key}}", fn _ -> to_string(value) end)
end)
end
end
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