Rails模型繼承和路由

class User < ActiveRecord::Base 
    has_many :queued_workouts, 
      :conditions => "queue_position IS NOT NULL", 
      :order => "queue_position ASC" 

    has_many :workouts 
end 

class Workout < ActiveRecord::Base 
end 

class QueuedWorkout < Workout 
    # Have to give this its own class because acts_as_list always updates the 
    # queue_position when operating on user.workouts 
    acts_as_list :column => :queue_position, :scope => :user 
end

我有鍛鍊的路線，但不需要它們用於QueuedWorkouts。每過一段時間，我都遇到了將QueuedWorkout而不是Workout傳遞到url_for的情況。在我的具體情況下，這發生在WorkoutObserver中。Rails模型繼承和路由

現在我做

class WorkoutObserver < ActiveRecord::Observer 
    def after_update(workout) 
    workout = Workout.find(workout.id) if workout.is_a? QueuedWorkout 
    twitter_status = "some stuff " + short_url_for(workout) # Helper method for generating urls outside controllers & views 
    .... 
    end 
end

，當然這是一個可怕的解決方案。有沒有更好的方法來告訴Rails路由器爲QueuedWorkouts生成鍛鍊URL？

來源

2011-09-26 Dean Brundage

你可以這樣做：

resources :queued_workout, :controller => "workout"

來源

2011-09-27 00:28:03 drummondj

因爲我已經切換到這一點，但寧願有路由器自動複製路線。或跳過路由並在url_for中執行。 –

Rails模型繼承和路由

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