title: How to make draggable false with condition in case_kanban_view odoo
body: <p>Is it possible to make draggable event False with condition in kanban view crm module?</p>
  
  <p>I want to drag leads from any stage except stage won (probability=100)</p>
  
  <p>I tried this but in vain:</p>
  
  <pre><code>&lt;kanban position="attributes"&gt;
  &lt;attribute name="attrs"&gt;{'edit': [('probability', '&amp;lt;', 100)]}&lt;/attribute&gt;
  &lt;/kanban&gt;
  </code></pre>
  
  
  
  <pre><code>&lt;field name="stage_id" position="attributes"&gt;
  &lt;attribute name="attrs"&gt;{'readonly': [('probability', '&amp;lt;', 100)]}&lt;/attribute&gt;
  &lt;/field&gt;
  </code></pre>
  
  <p>I tried also to modify kanban_column.js and kanban_record.js (in web_kanban/static/js) but in vain.</p>