Question

I have a scenario where i am calling a Controller method from the view,that returns an array of pages,which can be either nil or must be having values.i need to iterate that array in a for loop to generate a dynamic list in my view.pls help

Answer 1

Implementing logic in your controllers is generally not a good idea you should move logic into the corresponding model.

But if you really want to you can use controller variable to reach the actual controller from your view.

Example:

<p>
Now we're printing out the result of the some_method:
<%= controller.some_method.inspect %>
</p>

Iterating through the returned value is easy:

<ul>
<% controller.some_method.each do |item| -%>
  <li>item.inspect</li>
<% end -%>
</ul>

Probably the visibility of the method in your controller is not public, so you may need to use the Object#send method.

<%= controller.send(:my_protected_method).inspect %>

Update

To handle the nil reponse, I would create a helper method in the ApplicationHelper class:

def my_method
  (controller.my_method || [])
end

And then in the view:

<% my_method.each do |item| -%>
  <%= item.inspect %>
<% end %->