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utc_datetime.ex
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utc_datetime.ex
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defmodule Ash.Type.UtcDatetime do
@moduledoc """
Represents a utc datetime
A builtin type that can be referenced via `:utc_datetime`
"""
use Ash.Type
@beginning_of_day Time.new!(0, 0, 0)
@impl true
def storage_type, do: :utc_datetime
@impl true
def generator(_constraints) do
# Waiting on blessed date/datetime generators in stream data
# https://github.com/whatyouhide/stream_data/pull/161/files
StreamData.constant(DateTime.utc_now())
end
@impl true
def cast_input(%Date{} = date, constraints) do
case DateTime.new(date, @beginning_of_day) do
{:ok, value} ->
cast_input(value, constraints)
_ ->
{:error, "Date could not be converted to datetime"}
end
end
def cast_input(value, _) do
Ecto.Type.cast(:utc_datetime, value)
end
@impl true
def cast_stored(nil, _), do: {:ok, nil}
def cast_stored(value, constraints) when is_binary(value) do
cast_input(value, constraints)
end
def cast_stored(value, _) do
Ecto.Type.load(:utc_datetime, value)
end
@impl true
def dump_to_native(nil, _), do: {:ok, nil}
def dump_to_native(value, _) do
Ecto.Type.dump(:utc_datetime, value)
end
end