add post image uploader
This commit is contained in:
parent
8874e0e7ba
commit
835b455d4b
1 changed files with 63 additions and 0 deletions
63
lib/chiya_web/uploaders/note_image.ex
Normal file
63
lib/chiya_web/uploaders/note_image.ex
Normal file
|
@ -0,0 +1,63 @@
|
||||||
|
defmodule Chiya.Uploaders.NoteImage do
|
||||||
|
use Waffle.Definition
|
||||||
|
use Waffle.Ecto.Definition
|
||||||
|
|
||||||
|
# Include ecto support (requires package waffle_ecto installed):
|
||||||
|
# use Waffle.Ecto.Definition
|
||||||
|
|
||||||
|
@versions [:original, :dithered, :thumb, :thumb_dithered]
|
||||||
|
|
||||||
|
# Whitelist file extensions:
|
||||||
|
def validate({file, _}) do
|
||||||
|
file_extension = file.file_name |> Path.extname() |> String.downcase()
|
||||||
|
|
||||||
|
# case Enum.member?(~w(.jpg .jpeg .gif .png), file_extension) do
|
||||||
|
# true -> :ok
|
||||||
|
# false -> {:error, "invalid file type"}
|
||||||
|
# end
|
||||||
|
|
||||||
|
# filetype will be validated in liveview
|
||||||
|
:ok
|
||||||
|
end
|
||||||
|
|
||||||
|
# Define a resize transformation:
|
||||||
|
def transform(:dithered, _) do
|
||||||
|
{:convert, "-strip -resize 1500000@ -colors 24 -dither FloydSteinberg -format png", :png}
|
||||||
|
end
|
||||||
|
|
||||||
|
# Define a thumbnail transformation:
|
||||||
|
def transform(:thumb, _) do
|
||||||
|
{:convert, "-strip -thumbnail 250x250^ -gravity center -extent 250x250 -format png", :png}
|
||||||
|
end
|
||||||
|
|
||||||
|
# Define a thumbnail transformation with dithering:
|
||||||
|
def transform(:thumb_dithered, _) do
|
||||||
|
{:convert,
|
||||||
|
"-strip -thumbnail 250x250^ -gravity center -extent 250x250 -colors 24 -dither FloydSteinberg -format png",
|
||||||
|
:png}
|
||||||
|
end
|
||||||
|
|
||||||
|
# Override the persisted filenames:
|
||||||
|
def filename(version, _) do
|
||||||
|
version
|
||||||
|
end
|
||||||
|
|
||||||
|
# Override the storage directory:
|
||||||
|
def storage_dir(_version, {_file, _scope}) do
|
||||||
|
"uploads/user/avatar"
|
||||||
|
end
|
||||||
|
|
||||||
|
# Provide a default URL if there hasn't been a file uploaded
|
||||||
|
# def default_url(version, scope) do
|
||||||
|
# "/images/avatars/default_#{version}.png"
|
||||||
|
# end
|
||||||
|
|
||||||
|
# Specify custom headers for s3 objects
|
||||||
|
# Available options are [:cache_control, :content_disposition,
|
||||||
|
# :content_encoding, :content_length, :content_type,
|
||||||
|
# :expect, :expires, :storage_class, :website_redirect_location]
|
||||||
|
#
|
||||||
|
# def s3_object_headers(version, {file, scope}) do
|
||||||
|
# [content_type: MIME.from_path(file.file_name)]
|
||||||
|
# end
|
||||||
|
end
|
Loading…
Reference in a new issue