rails pass instance variable to layout or local variable -


I have a navigation bar (actually two) and I have some controllers to implement it in a dynamic data (second Times can not exist in some), I have seen so many complaints that many footage scenes are not seen, and they have been suggested to render them to local people. I am thinking of using an example variable to generate these things in the main layout, whether or not it is a good idea, and if it is not, how should I do this, render to overwrite the default view And I use the data in the main layout only

I'm not sure that I have a good question Understand the way But for some of my menus I use something like this in my layout: 

  <% = yield (: menu_top)%>   
 And I use  
  content_for: menu_top   
 to generate content in this area.  
 For example:  
  For & lt;% = content_: menu_opt% & gt; & Lt; Li & gt; My special content or var & lt; / Li & gt; & Lt;% end% & gt;   
 Here is the guide to the content:

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