ruby - How do I initialize or show a nested form in rails? -

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I follow complicated nested forms in Rail Nest and I have done this, there are some changes here and there. But the question is how do I automatically load nested forms without using the controller? 

  DEF New @ model = model. New model @ child.build end   
 Many thanks!  
  
 
 
 
 How do I automatically load the nested form without using the controller? ?   
 Partial to include a simple (wrong) answer that will define the ActiveRecord object above, such as:  
  # app / views / controller / _your_partial .html.erb & lt;% Model = Model New% & gt; & Lt;% mode.child.build% & gt; & Lt;% = Model-do | F | & Gt%;   
  Problem  With this, it goes against the railways in the world of God,  
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  MVC   
 Your question is exceptional because it goes against one of the main elements of the rail:  
 Enter image details here  
 This means that every  request  The app (via URL) will be catered by a  controller action . The role of the controller is to configure / gather the necessary  data  to run the app, and then to populate the view for the user.  
 When you want to call "form without a controller", you are basically saying that you want to go against these conventions unless you make  gem  (Which will allow you to extrapolate the ActiveRecord definition code outside your controller), you have to use the controller.  
  
 -  
 -  
  class method   
 
 The functionality you use in your controller & amp; Create one to manage it:  
  # app / model / model RB class model & lt; ActiveRecord :: Base DF self.build model = self.new model.child.build model end-end   
 This will allow you to call the following calls from your Controller / Partial:    @model = model. Build # - & gt; Instead of Model.new :)

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