title: Django Template firstof + filter
body: <p>I am using a Django template in my webapp, and am displaying values that are one of two things:</p>
  
  <ol>
  <li>Numbers (up to 2 digits float)</li>
  <li>The string "None"</li>
  </ol>
  
  <p>What I'd like to do is:</p>
  
  <ol>
  <li>Change "None" to 0, if value is "None".</li>
  <li>Use Float Format to ensure value is displayed as 2nd digit float</li>
  </ol>
  
  <p>Right now, I can do those separately:</p>
  
  <pre><code>{% firstof myValue 0.00 %}
  </code></pre>
  
  <p>(this outputs either the value or 0.00 if myValue = "None")</p>
  
  <pre><code>{{ myValue | floatformat:2 }}
  </code></pre>
  
  <p>(this formats the number to something like 2.70 for example, but doesn't change "None" to 0.00)</p>
  
  <p>Is there a way to combine the functionality of those two?</p>