forked from potsda.mn/mobilizon
36 lines
992 B
Elixir
36 lines
992 B
Elixir
|
defmodule Mobilizon.GraphQL.Schema.Custom.Timezone do
|
||
|
|
@moduledoc """
|
||
|
|
The timezone scalar type allows timezone ID strings to be passed in and out.
|
||
|
|
"""
|
||
|
|
use Absinthe.Schema.Notation
|
||
|
|
import Mobilizon.Web.Gettext, only: [dgettext: 3]
|
||
|
|
|
||
|
|
scalar :timezone, name: "Timezone" do
|
||
|
|
description("""
|
||
|
|
The `Timezone` scalar type represents a timezone identifier,
|
||
|
|
as registered in the IANA Time Zone Database.
|
||
|
|
""")
|
||
|
|
|
||
|
|
serialize(&encode/1)
|
||
|
|
parse(&decode/1)
|
||
|
|
end
|
||
|
|
|
||
|
|
@spec decode(Absinthe.Blueprint.Input.String.t()) :: {:ok, term} | :error
|
||
|
|
@spec decode(Absinthe.Blueprint.Input.Null.t()) :: {:ok, nil}
|
||
|
|
defp decode(%Absinthe.Blueprint.Input.String{value: value}) do
|
||
|
|
if Tzdata.zone_exists?(value),
|
||
|
|
do: {:ok, value},
|
||
|
|
else: {:error, dgettext("errors", "Timezone ID %{timezone} is invalid", timezone: value)}
|
||
|
|
end
|
||
|
|
|
||
|
|
defp decode(%Absinthe.Blueprint.Input.Null{}) do
|
||
|
|
{:ok, nil}
|
||
|
|
end
|
||
|
|
|
||
|
|
defp decode(_) do
|
||
|
|
:error
|
||
|
|
end
|
||
|
|
|
||
|
|
defp encode(value), do: value
|
||
|
|
end
|