require 'rubygems'
require 'active_support'
require 'carrierwave'
require 'sinatra'
require 'sqlite3'
require 'sequel'
require 'carrierwave/sequel'
require 'mini_magick'
# Example app to demonstrate issue as seen in https://github.com/jnicklas/carrierwave/issues/436
# Used http://www.engineyard.com/blog/2011/a-gentle-introduction-to-carrierwave/
# as a starting point.
#
# gem install sinatra sqlite3 sequel carrierwave-sequel
CarrierWave.configure do |config|
config.root = "#{Dir.pwd}/public/"
end
# database setup
DB = Sequel.sqlite
DB.create_table :uploads do
String :file
end
# uploader
class MyUploader < CarrierWave::Uploader::Base
include CarrierWave::MiniMagick
storage :file
version :blurred do
process :blur
end
version :thumbnail do
process :resize_to_fit => [250, 250]
end
def blur
manipulate! do |img|
img = img.radial_blur 10
end
end
end
# model
class Upload < Sequel::Model
mount_uploader :file, MyUploader
def filename
"#{model.id}.#{file.extension}" if file
end
def store_dir
"public/uploads"
end
end
# sinatra app
get '/' do
@uploads = Upload.all
erb :index
end
post '/' do
upload = Upload.new
upload.file = params[:image]
upload.save
redirect to('/')
end
__END__
@@ index
<% @uploads.each do |upload| %>
<% end %>