CODEWITHSUNDEEP
ruby-on-rails
Seong Lee
Seong Lee

Reputation: 10580

Ruby on Rails - Activerecord::Associations method error

I have this basic association setup on both User and Recipe models as in User has many recipes and on view I'm referencing one of recipe attribute like this 

<%= @recipe.title %>

And the error is

undefined method `title' for #<ActiveRecord::Associations::CollectionProxy::ActiveRecord_Associations_CollectionProxy_Recipe:0x00000101edeac0>

I did some research and it seems like this has to do with something called proxy object that I will need to access associated object's attributes in a different way but I find it challenging to digest this concept.

At a higher level, I need to achieve showing selected recipe in detail (show) from the list (index) and showing this detail part is where the error is.

Controller

def index
  @recipes = Recipe.all
end

def show

end

View 

<p>
  <strong>Title:</strong>
  <%= @recipe.title %>
</p>

<p>
  <strong>Content:</strong>
  <%= @recipe.content %>
</p>

<p>
  <strong>Duration:</strong>
  <%= @recipe.duration %>
</p>

<p>
  <strong>Rating:</strong>
  <%= @recipe.rating %>
</p>

Upvotes: 0

Views: 61

Answers (1)

Stanislav Mekhonoshin
Stanislav Mekhonoshin

Reputation: 4386

@recipes = Recipe.all returns associations you should do something like this

<%- @recipes.each do |recipe| %>

<p>
  <strong>Title:</strong>
  <%= recipe.title %>
</p>

<p>
  <strong>Content:</strong>
  <%= recipe.content %>
</p>

<p>
  <strong>Duration:</strong>
  <%= recipe.duration %>
</p>

<p>
  <strong>Rating:</strong>
  <%= recipe.rating %>
</p>
<% end %>

It will iterate through collection and display each recipe

Upvotes: 1

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