Select filters linked

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beauchem
Select filters linked

I'm adding 2 Select Filters in my search criteria

<element name='environments_code'> 
  <display class='tactic.ui.filter.SelectFilterElementWdg'>
    <values_expr>@GET(sthpw/environments.code)</values_expr>
    <column>sthpw/jobs.environments_code</column> 
  </display> 
</element>
<element name='job_code'> 
  <display class='tactic.ui.filter.SelectFilterElementWdg'>
    <values_expr>@GET(sthpw/jobs['environments_code', ???].code)</values_expr>
    <column>jobs_code</column> 
  </display> 
</element>

I need to replace the ??? in job_code with the value selected in environment_code.