在耙子任务中包含 Rails 类

Question

我对 Rails 很陌生，所以如果我的问题没有最有意义，我深表歉意。

我有一个名为 PaymentGatewayCipher 的类，如下所示：

require 'openssl'
# Encapsulates payment gateway encryption / decryption utility functions
class PaymentGatewayCipher
  class << self
    def encrypt(file, options = {})
      cipher = create_cipher
      cipher.encrypt(cipher_key)
      data = cipher.update(File.read(file))
      data << cipher.final
      if to_file = options[:to]
        # Write it out to a different file
        File.open(to_file, 'wb') do |f|
          f << data
        end
      end
      data
    end
    # Decrypts the given file
    def decrypt(file)
      cipher = create_cipher
      cipher.decrypt(cipher_key)
      encrypted_data = File.open(file, 'rb') {|io| io.read}
      data = cipher.update(encrypted_data)
      data << cipher.final
    end
    # Generates the cipher to be used for encryption/decryption
    def create_cipher
      OpenSSL::Cipher::Cipher.new('aes-256-cbc')
    end
    # Loads the cipher key used for the symmetric algorithm
    def cipher_key
      File.open(File.join(Rails.root, 'config/mystuff/live/cipher.key'), 'rb') {|io| io.read}
    end
  end
end

我想编写一个rake task来运行它以解密文件。我尝试将一个文件放入tasks/Rakefile，如下所示：

directory "tasks"
task :decrypt_test do
  puts "Decypting"
  pay_pal_config = PaymentGatewayCipher.decrypt('hpa1')
end

但是，当我运行它时，它说找不到Class::Rails

帮助？

Answer 1

使用lib/tasks文件夹，不要忘记在任务中包含 rails 环境：

directory "tasks"
task :decrypt_test => :environment do
  puts "Decypting"
  pay_pal_config = PaymentGatewayCipher.decrypt('hpa1')
end

Answer 2

您不必为此编辑 Rakefile。将您自己的任务添加到以 .rake 结尾的lib/tasks文件中，例如 lib/tasks/bootstrap.rake ，它们将自动可供 Rake 使用。