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PONested Attributes when Viewing Multiple Models (not a form)
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  1. PONested Attributes when Viewing Multiple Models (not a form)
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    copied!<p>I am having trouble rendering a model's attributes in foreign model's view. I think it is a nested attributes problem because <code>f.bike</code> works but <code>f.bike.biketype</code> gives an undefined method error. Below is my error and code. Any help would be great. Thanks!</p> <p>Error from Browser:</p> <pre><code>NoMethodError in Carts#show Showing /Users/willdennis/rails_projects/spinlister/app/views/carts/show.html.erb where line #4 raised: undefined method `biketype' for nil:NilClass Extracted source (around line #4): 1: &lt;h2&gt;Your Cart&lt;/h2&gt; 2: &lt;ul&gt; 3: &lt;% @cart.line_items.each do |f| %&gt; 4: &lt;li&gt;&lt;%= f.bike.biketype %&gt;&lt;/li&gt; 5: &lt;% end %&gt; 6: &lt;/ul&gt; </code></pre> <p>views/carts/show.html.erb</p> <pre><code>&lt;h2&gt;Your Cart&lt;/h2&gt; &lt;ul&gt; &lt;% @cart.line_items.each do |f| %&gt; &lt;li&gt;&lt;%= f.bike.biketype %&gt;&lt;/li&gt; &lt;% end %&gt; &lt;/ul&gt; </code></pre> <p>cart.rb</p> <pre><code>class Cart &lt; ActiveRecord::Base has_many :line_items, :dependent =&gt; :destroy belongs_to :user accepts_nested_attributes_for :line_items attr_accessible :bike_id, :name, :description, :size, :biketype, :price, :photo, :id, :address, :city, :state, :zip, :latitude, :longitude, :neighborhood end </code></pre> <p>line_item.rb</p> <pre><code>class LineItem &lt; ActiveRecord::Base belongs_to :bike belongs_to :cart accepts_nested_attributes_for :bike, :cart attr_accessible :name, :description, :size, :biketype, :price, :photo, :id, :address, :city, :state, :zip, :latitude, :longitude, :neighborhood end </code></pre> <p>bike.rb</p> <pre><code>class Bike &lt; ActiveRecord::Base has_many :line_items attr_accessible :name, :description, :size, :biketype, :price, :photo, :id, :address, :city, :state, :zip, :latitude, :longitude, :neighborhood end </code></pre> <p>carts_controller.rb</p> <pre><code> def show @cart = Cart.find(params[:id]) end </code></pre>
 

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