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如何将参数传递给Rails“委托”?

ruby-on-rails

jpemberthy · 技术社区 · 16 年前

目前我有:

class Group < ActiveRecord::Base

   delegate :publish_group_creation, :to => 'MyAppModules::Publisher'  
   after_create :publish_group_creation

end

问题是 Publisher.publish_group_creation

我试过这样的东西;

delegate :publish_group_creation, :to => 'MyAppModules::Publisher', :group => self

delegate

2 回复 | 直到 16 年前

PreciousBodilyFluids 16 年前

通过回调调用的方法在Rails中不接收参数。

试试这个:

class Group < ActiveRecord::Base
  after_create :publish_group

  private
  def publish_group
    MyAppModules::Publisher.publish_group_creation(self)
  end
end

Mike 16 年前

我不确定这是否适用于您的场景,但您可以尝试重新设计一下。差不多

module MyAppModules::Publisher
  def publish_group_creation
    ...
  end
end

class Group < ActiveRecord::Base

  include MyAppModules::Publisher

  after_create :publish_group_creation

end

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