48 lines
1.3 KiB
Elixir
48 lines
1.3 KiB
Elixir
defmodule Chiya.Uploaders.UserImage do
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use Waffle.Definition
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use Waffle.Ecto.Definition
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# Include ecto support (requires package waffle_ecto installed):
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# use Waffle.Ecto.Definition
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@versions [:original, :thumb, :thumb_dithered]
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# Whitelist file extensions:
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def validate({_file, _}) do
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# _file_extension = file.file_name |> Path.extname() |> String.downcase()
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# case Enum.member?(~w(.jpg .jpeg .gif .png), file_extension) do
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# true -> :ok
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# false -> {:error, "invalid file type"}
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# end
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# filetype will be validated in liveview
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:ok
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end
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# Define a thumbnail transformation:
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def transform(:thumb, _) do
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{:convert, "-strip -thumbnail 250x250^ -gravity center -extent 250x250 -format png", :png}
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end
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# Define a thumbnail transformation with dithering:
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def transform(:thumb_dithered, _) do
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{:convert,
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"-strip -thumbnail 250x250^ -gravity center -extent 250x250 -colors 24 -dither FloydSteinberg -format png",
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:png}
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end
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# Override the persisted filenames:
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def filename(version, _) do
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version
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end
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# Override the storage directory:
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def storage_dir(_version, {_file, _scope}) do
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"uploads/user/avatar"
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end
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# Provide a default URL if there hasn't been a file uploaded
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# def default_url(version, scope) do
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# "/images/avatars/default_#{version}.png"
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# end
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end
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