Hello together,

in the invoice report I want implement the following logic:

<span t-if="o.x_onlineId != ''">

  <div class="col-xs-2" style="width:180px"> 

  <strong>Web Id</strong>

   <p t-field="o.x_onlineId"/> 

  </div> 

</span>

The problem is that the if condition do not work. The field "Web Id" is always printed in the invoice even the fiel x_onlineId is empty. 

I have already tested the following syntax 

<span t-if=" not o.x_onlineId == ''">

It also did not work.

The question is how it is possible to check for an empty value in a field?

Has someone an idea.

Thanks in advanced

cakbulut