Retrospring/app/uploaders/base_uploader.rb

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class BaseUploader < CarrierWave::Uploader::Base
include CarrierWave::Compatibility::Paperclip
include CarrierWave::MiniMagick
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include CarrierWave::Backgrounder::Delay
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storage :fog
# Store original size
version :original
# Process cropping on upload
process :cropping
def store_dir
"/uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
def paperclip_path
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return "/system/users/:attachment/:id_partition/:style/:basename.:extension" if APP_CONFIG["fog"].blank?
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"users/:attachment/:id_partition/:style/:basename.:extension"
end
def cropping
x = model.public_send("#{mounted_as}_x")
y = model.public_send("#{mounted_as}_y")
w = model.public_send("#{mounted_as}_w")
h = model.public_send("#{mounted_as}_h")
manipulate! do |image|
image.crop "#{w}x#{h}+#{x}+#{y}"
end
end
end