title: Condition for Boolean field for in Qweb Report - Odoo11
body: <p>Here is a Boolean field(collar2).
  if Boolean is selected, the second field(collarmodel2) should be appear in Qweb report.</p>
  
  <pre><code>&lt;t t-foreach="doc.modellines" t-as="line"&gt;
  
  &lt;span t-if="line.collar2=='True'"&gt;
  &lt;t t-esc="line.collarmodel2" /&gt;
  &lt;/span&gt;
  &lt;/t&gt;
  </code></pre>
  
  <p>Please help to correct it</p>