Displaying associated model data in Rails view

Question

I have two models set up: Photo and Search. Each photo has one associated search, and I want to try and display this associated search in the photo view. Here are my models:

class Photo < ActiveRecord::Base

  has_one :search

end

# Data: name:string, photo_url:string, search_id:integer

Brief aside: I’m unsure whether I need to have the has_many association here or not.

class Search < ActiveRecord::Base

  validates :search_term, :presence => true
  has_many :photos

end

# Data: search_term:string

Here is the controller action:

def index
  @photos = Photo.all
end

And finally, the view templates:

<!-- index.html.erb -->

<section class="photos">
  <%= render @photos %>
</section>

<!-- _photo.html.erb -->

<div class="photo__item">
  <h1><%= photo.id %>: <%= photo.name %></h1>
  <h3>Search_term: <%= photo.search_id.search_term %></h3>
  <%= image_tag(photo.photo_url) %>
</div>

The error I’m getting is:

undefined method `search_term' for 2:Fixnum

I’m not even entirely sure my set up for this is correct, so any help would be greatly appreciated.

nickcen · Accepted Answer · 2014-01-18 00:33:17Z

1

you put the search_id in the photos table, so i think you should make the photo class definition like this

class Photo < ActiveRecord::Base
  belongs_to :search
end

and in the view you you should get the photo's search instance like this

<h3>Search_term: <%= photo.search.search_term %></h3>

answered Jan 18, 2014 at 0:33

nickcen

1,69210 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Edo · Accepted Answer · 2014-01-18 00:11:25Z

1

You need to set the correct association. Try changing has_one :search to belongs_to :search.

The belongs_to association is always used in the model that has the foreign key.

See: http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html

answered Jan 18, 2014 at 0:11

Edo

3964 silver badges11 bronze badges

2 Comments

gosseti Over a year ago

Ah, I’m with you. Which parts should I change in the controller and views?

Edo Over a year ago

Try photo.search.search_term`

Collectives™ on Stack Overflow

Displaying associated model data in Rails view

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related