如何从 rake 中调用 class 包含的模块函数？

Question

我正在执行 rake 文件中的任务。

# gottaRunThis.rake
task [:var] => :environment do |t, args|

    Foo::Bar::Bell::this_function(args.var)
    #runs Bell::this_function(var) but fails to complete.
    # errors out with the words:
    # NoMethodError: undefined method `put' for nil:NilClass
    # Because Bell needs a @connection variable that doesn't exist in
    # it's context when called directly.
end

问题是，目标模块和 def 应该包含在另一个 class。

# mainclass.rb
module Foo
  module Bar
    class TheMainClass
      include Foo::Bar::Bell
      def initialize
        @site = A_STATIC_SITE_VARIABLE
        @connection = self.connection
      end
      def connection
        # Connection info here, too verbose to type up
      end
    end
  end
end

和Bell长得像。

# bell.rb
module Foo
  module Bar
    module Bell
    def do_the_thing(var)
      #things happen here
      #var converted to something here
      response = @connection.put "/some/restful/interface, var_converted
    end
  end
end

我是否应该修改 Bell 以使其以某种方式包含 TheMainClass？（如果是这样，我不知道怎么做？）或者我应该在我的 rake 文件中使用一些语法，比如

Foo::Bar::TheMainClass::Bell::do_the_thing(args.var)
#I don't think this works... should it? What would the equivilent but working version look like?

Answer 1

包含的方法可作为实例方法使用，因此您可以这样调用 do_the_thing：

main_class = Foo::Bar::TheMainClass.new
main_class.do_the_thing(args.var)

如何从 rake 中调用 class 包含的模块函数？

How to call an class's included module function from a rake?

ruby

rake