Rails：显示关联模型中的属性

Question

I am trying to make an app with Rails 4.

I have a profile show page which should include the name of the university that the profile belongs to.

I have this link in my profiles#show:

<%= link_to @profile.university.name do %>
            <span class="profiletitle"> <%= @profile.university.name %></span>
<% end %>

I have a profile model and a university model. The associations are:

profile: belongs_to :university

university: has_many :profiles

In my universities table, I have an attribute called :name.

When I try this, I get an error saying:

ActiveRecord::RecordNotFound at /profiles/University%20of%20Melbourne
Couldn't find Profile with 'id'=University of Melbourne

It refers to my profiles controller, which has (at the line where the error reference points):

 def set_profile
      @profile = Profile.find(params[:id])
 end

I dont understand why this reference is relevant or how to reference the university name from the profile show. I want ti to works so you click the link and it takes you to the uni overview show page.

How do you reference an attribute from an associated model?

I have asked several other questions trying to fix this error. The most recent one is here. There is an extensive answer given, but I don't want the associations set out like the suggestion provides for so I"m getting lost on how to follow along with the content of the answer.

http://stackoverflow.com/questions/32916133/rails-how-to-show-attribute-of-an-associated-model

Thank you

When I take Prashant's suggestion and try:

<%= link_to universities_path(@profile.university) do %>
   <span class="profiletitle"> <%= @profile.university.name %></span>
 <% end %>

I get this error:

ActionController::UnknownFormat

It references this action in my universities controller:

def index
    @universities = University.all
    respond_with(@university)
  end

My profile routes are:

resources :profiles do
    resources :account_histories
  end

Answer 1

yourUse like this:

UPDATE

 <%= link_to university_path(@profile.university) do %>
   <span class="profiletitle"> <%= @profile.university.name %></span>
 <% end %>

Your routes.rb should contain this

resources :universities do
  resources :profiles
  # other stuff
  end
end