kmarsh/carrierwave-issue-436.rb

## carrierwave-issue-436.rb
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
<!DOCTYPE html>
<html>
  <body>
    <form action="/" method="post" enctype="multipart/form-data"></div>
      <p><input type="file" name="image" /></p>
      <p><input type="submit" name="submit" value="Upload" /></p>
    </form>
    <% @uploads.each do |upload| %>
      <img src="<%= upload.file.thumbnail.url %>" />
    <% end %>
  </body>
</html>
	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
	<!DOCTYPE html>
	<html>
	<body>
	<form action="/" method="post" enctype="multipart/form-data"></div>
	<p><input type="file" name="image" /></p>
	<p><input type="submit" name="submit" value="Upload" /></p>
	</form>
	<% @uploads.each do \|upload\| %>
	<img src="<%= upload.file.thumbnail.url %>" />
	<% end %>
	</body>
	</html>