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fab-manager/app/uploaders/machine_image_uploader.rb

67 lines
1.8 KiB
Ruby

# frozen_string_literal: true
# CarrierWave uploader for images illustrating the Machines.
# This file defines the parameters for these uploads.
class MachineImageUploader < CarrierWave::Uploader::Base
# Include RMagick or MiniMagick support:
# include CarrierWave::RMagick
include CarrierWave::MiniMagick
include UploadHelper
# Choose what kind of storage to use for this uploader:
storage :file
after :remove, :delete_empty_dirs
# storage :fog
# Override the directory where uploaded files will be stored.
# This is a sensible default for uploaders that are meant to be mounted:
def store_dir
"#{base_store_dir}/#{model.id}"
end
def base_store_dir
"uploads/#{model.class.to_s.underscore}"
end
# Provide a default URL as a default if there hasn't been a file uploaded:
# def default_url
# # For Rails 3.1+ asset pipeline compatibility:
# # ActionController::Base.helpers.asset_pack_path("fallback/" + [version_name, "default.png"].compact.join('_'))
#
# "/images/fallback/" + [version_name, "default.png"].compact.join('_')
# end
# Process files as they are uploaded:
# process :scale => [200, 300]
#
# def scale(width, height)
# # do something
# end
# Create different versions of your uploaded files:
version :large do
process resize_to_fit: [1000, 700]
end
version :medium do
process resize_to_fit: [700, 400]
end
# Add a white list of extensions which are allowed to be uploaded.
# For images you might use something like this:
def extension_whitelist
%w[jpg jpeg gif png]
end
def content_type_whitelist
[%r{image/}]
end
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
def filename
"machine_image.#{file.extension}" if original_filename
end
end