播種嵌套模型，重複鍵錯誤

Question

我有兩個相關的模型

鍛鍊：

has_many :exercises, dependent: :destroy 
accepts_nested_attributes_for :exercises, 
           :reject_if => :all_blank, 
           :allow_destroy => true 

練習：

belongs_to :workout 

鍛鍊控制器具有以下PARAMS：

params.require(:workout).permit(:name, exercises_attributes: [:id,:name,:reps,:sets,:weight]) 

這裏是我的seed.rb文件

5.times do |i| 
    Workout.create(name: i, exercises_attributes: [ 
               name: 'Bench Press', 
               reps: 5, 
               sets: 5, 
               weight: 200.0], 
         exercises_attributes: [ 
               name: 'Squat', 
               reps: 5, 
               sets: 5, 
               weight: 100.0]) 
end 

當我運行耙分貝：重置我得到以下錯誤：

~/db/seeds.rb:14: warning: duplicated key at line 19 ignored: :exercises_attributes 

結果是下蹲運動被添加和仰臥推舉鍛鍊被忽略。任何想法如何解決這個問題，以便兩者都創建？

Answer 1

由於您在Workout.create調用中指定了兩次，因此會出現重複密鑰錯誤。

嘗試僅僅發送了一次，但散列的數組，這樣你既適合練習同一數組：

5.times do |i| 
    Workout.create(name: i, exercises_attributes: [ 
    { 
     name: 'Bench Press', 
     reps: 5, 
     sets: 5, 
     weight: 200.0 
    }, 
    { 
     name: 'Squat', 
     reps: 5, 
     sets: 5, 
     weight: 100.0 
    }] 
) 
end