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PORails 3 each do ignore nil values
 

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    <p>I am building an html table that should include name, rating1, rating2, and rating3. rating 1-3 come from different models than name. </p> <pre><code>resources :names do resource :rat1,:rat2,:rat3 end </code></pre> <p>Inside of my html table I'd like to include the ratings from within each of these tables but I would like to automatically skip over or ignore tables that are nil. This is because :names may only have a :rat1 and not a :rat2 or :rat3. My view should look something like this.</p> <pre><code> &lt;table&gt; &lt;thead&gt;Name&lt;/thead&gt; &lt;thead&gt;Rating 1&lt;/thead&gt; &lt;thead&gt;Rating 2&lt;/thead&gt; &lt;thead&gt;Rating 3&lt;/thead&gt; &lt;% @names.each do |name| %&gt; &lt;tr&gt; &lt;td&gt;&lt;%= name.nametext %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= name.rat1.rating %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= name.rat2.rating %&gt;&lt;/td&gt; &lt;td&gt;&lt;%= name.rat3.rating %&gt;&lt;/td&gt; &lt;/tr&gt; &lt;% end %&gt; &lt;/table&gt; </code></pre> <p>Except that if name.rat1 is nil it will either a.) replace the value with N/A OR b.) it will leave this field blank and move on to the next. </p> <p>What is the cleanest way to do this?</p> <p>::UPDATE::</p> <p>So my issue is that the name.rat1 is nil and the name.rat1.rating is an undefined method of a nil class so both of these options will throw the same undefined method of a nil class error regardless of the || or helper method. At least thats what my current tests are showing. Any other options? or different workarounds? I'd like to avoid having to put a validation loop like this for every rat1-3 </p> <pre><code>&lt;% unless name.rat1.nil? %&gt; &lt;%= name.rat1.rating %&gt; &lt;% end %&gt; </code></pre> <p>There has to be a simpler way. </p>
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