respond_with所有在軌

的關聯，我使用Rails在我的應用程序的後端。使用respond_with返回show行動Activity和Workout模型。respond_with所有在軌

關係：

Activity has_many Workouts 
Workout has_many Exercises 
... belongs_to ...

控制器鍛鍊：

def show 
    respond_with Workout.find(params[:id]) 
end

控制器的活動：

def show 
    respond_with Activity.find(params[:id]) 
end

路線：

   exercises GET /exercises(.:format)       exercises#index 
        POST /exercises(.:format)       exercises#create 
      exercise GET /exercises/:id(.:format)      exercises#show 
    activity_workouts GET /activities/:activity_id/workouts(.:format)  workouts#index 
        POST /activities/:activity_id/workouts(.:format)  workouts#create 
    activity_workout GET /activities/:activity_id/workouts/:id(.:format) workouts#show 
      activities GET /activities(.:format)       activities#index 
        POST /activities(.:format)       activities#create 
      activity GET /activities/:id(.:format)      activities#show

在瀏覽器中，我在下面的輸入：

http://localhost:3000/activities/1.json

我得到這個，這包括所有Workouts本次活動1下：

{"id":1,"title":"Climbing","description":"climbing 1","created_at":"2017-03-13T17:48:30.220Z","updated_at":"2017-03-13T17:48:30.220Z","user_id":1,"workouts":[{"id":1,"name":"workout 1","description":"workout2","activity_id":1,"created_at":"2017-03-13T17:59:45.742Z","updated_at":"2017-03-13T17:59:45.742Z"},{"id":2,"name":"workout 2","description":"description 2","activity_id":1,"created_at":"2017-03-13T19:27:57.601Z","updated_at":"2017-03-13T19:27:57.601Z"},{"id":3,"name":"workout 3","description":"description 3","activity_id":1,"created_at":"2017-03-13T20:53:53.191Z","updated_at":"2017-03-13T20:53:53.191Z"},{"id":4,"name":"workout 4","description":"des 4","activity_id":1,"created_at":"2017-03-13T20:55:15.965Z","updated_at":"2017-03-13T20:55:15.965Z"}]}

但是，當我輸入：

http://localhost:3000/activities/1/workouts/1.json

我只是在它得到這個沒有其exercises：

{"id":1,"name":"workout 1","description":"workout2","activity_id":1,"created_at":"2017-03-13T17:59:45.742Z","updated_at":"2017-03-13T17:59:45.742Z"}

我不能告訴的是這兩個動作之間的差異。

解決方案：

添加這下model.rb

def as_json(options = {}) 
    super(options.merge(include: :exercises)) 
    end

來源

2017-03-14 Leogoesger

-1

在第一，你所要求的只是一個特定的活動 - 在Activity ID爲1（這恰好也有一套完整的「鍛鍊」）。

在您所要求的ID一個特定的鍛鍊第二個動作。該Workout與1的ID - 這是你在JSON

它做的正是你問什麼......正在接受什麼;）

來源

2017-03-15 01:07:36

應該有'下鍛鍊exercies'，但他們沒有表現出 – Leogoesger

^^這應該是你原來的問題的一部分（這一點不明確你以爲看錯了兩個不同的動作）。 –

你的'活動'模型有一個'includes'的地方嗎？ Rails根據給定的嵌套路由（這不是'Workout' - >'Exercise'）推斷「Activity」 - >'Workout'的嵌套結構，這是*貌似合理的。導軌標準......所以要在'Exercise'你將需要添加一個'includes'聲明 –

這是我需要得到每個模型下的所有協會。我想如果沒有它，每個模型都會在沒有它的情況下出現。感謝您的幫助！

def as_json(options = {}) 
    super(options.merge(include: :exercises)) 
    end

來源

2017-03-15 15:47:04 Leogoesger

respond_with所有在軌

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