title: How to check if data from input exist in QuerySet - Django
body: <p>Can I check if a data from input html is in QuerySet?</p>
  <p>exemple:</p>
  <pre><code>&lt;div&gt;
    &lt;input type=&quot;tel&quot; id=&quot;phone-number&quot;&gt;
    {% if input in client %} 
  </code></pre>