Question

I have an app which allows users to add recipes and then select their favourite recipes to view in their member area, I can select a favourite and i am getting the user_id, recipe_id and giving it a favourite_id.

What I would like to do is output the actual recipe to my view (as a favourite), like dish name, country_of_origin etc. I can do this with an actual recipe but not the favourite.Do i need to use has_many_through for this?

My models look like this

User

has_many :recipes
has_many :favourites

recipe

belongs_to :user
has_many :ingredients 
has_many :preperations
has_many :favourites

favourites

belongs_to :user
belongs_to :recipe

attr_accessible :user_id, :recipe_id

My controller

  @favourites = current_user.favourites

my link_to post

 <%= link_to "Add to favorites",  {:controller => 'favourites', :action => 'create', :recipe_id => r.id}, {:method => :post } %>

i can list the current users recipes, this is my contoller for this

@recipes = current_user.recipes if current_user.recipes

and then output them to the view like so

 <% @recipes.each do |r| %>
 <tr>
 <td><%= r.dish_name %></td>
 <td><%= r.country_of_origin %></td>
 <td><%= r.difficulty %></td>
 <td><%= r.preperation_time %></td>
 <td><%= ingredient_names(r.ingredients) %></td>
 <td><%= preperation_steps(r.preperations) %></td>
 <td><%= image_tag r.avatar.url(:thumb)%></td>
 <tr>

So if i do this in the view

 <li><%= @favourites %></li>

I get this outputted

 <Favourite id: 16, user_id: 8, recipe_id: 21, created_at: "2012-11-07 20:24:39", updated_at: "2012-11-07 20:24:39">]

If i try

 <%= @favourites.dish_name %>

then i get the error undefined method dish_name

How do i get the params of the recipe model to show in the view. I do apologise just cant work it out, which should be really easy i guess?

Any help appreciated

Answer 1

You get undefined dish_name because your Favourite model does not have such attribute.

@favourites = current_user.favourites returns an array of Favourite objects.

In your view you would do something like

 <% @favourites.each do |f| %>
   <%= f.recipe %>
 <% end %>

That will display all the recipes your current_user favorites. You could narrow it down to display a specific recipe or what not.